It goes without saying that the performance of a laptop depends a lot on its battery. After all, a laptop becomes mobile only when its battery allows for a longer runtime. With all the wide variety of choices in the market, it’s always good to be knowledgeable about the many types of batteries that are available so you can make the right choice.

The types of laptop batteries vary greatly according to the technology used to create them, the efficiency of their performance, and the hazards that come with their use. There are three popular kinds of laptop batteries that have been used over the years.

The nickel cadmium batteries were used in old laptops. They are actually the first rechargeable batteries ever used in notebooks because for a relatively low cost, one can yield satisfactory output. However, as time went by, the NiCad battery lost its popularity over more environment-friendly types. One of the downsides of using this type is what is known as the memory effect. This refers to the decrease in a battery’s life when you charge it without letting it completely drain first. A NiCad battery can also be severely damaged when it is left plugged onto the charger long after it is fully charged.

NiCad batteries have relatively low capacities compared to the most modern ones. It’s not anymore used for newer notebooks because these batteries are heavier and pose more negative consequences than benefits.

The nickel metal hybrid (NiMH) batteries are just a couple of steps higher than the NiCad ones. They have twice the energy output of the older type but are still susceptible to memory effect. NiMH batteries are still available these days. They are usually found in older laptops and manufacturers haven’t removed them from the market yet as many people are still attached to their bulky but reliable notebooks.

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NiMH batteries are an improvement from the NiCad ones. They are much more reliable but again, you can’t leave them on the charger long after they’re fully charged nor can you charge them before they are fully drained.

Lithium ion (LiON) batteries are the most popular types that are currently used in newer laptops. These batteries do not have the dreaded memory effect that their predecessors suffered from. They are also relatively lighter than the other two and have a better power output. The LiON batteries answer the demand for efficient power sources at a minimal production cost. Considering that notebook users live in a fast-paced environment, this is a great development that nobody can’t do without.

By far, the Lithium ion batteries are the recommended choice for today’s laptops. If you’re using a refurbished laptop that can take all types of batteries, you should consider getting a LiON battery. It weighs half as much as the older ones and promises more benefits that are more suited to the present.

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However, it’s important to note that a laptop battery can only perform efficiently with proper use. It’s therefore important that you have to be mindful of proper maintenance and power-saving techniques to maximize your battery’s life.An important factor to consider is how much battery life you’ll need on your laptop. No matter how much battery you have, using your built-in DVD drive a lot and having a 17″ screen will drain it faster. Battery technology–just like any technology–is improving all the time.

Yesterday’s laptops featured Ni-Cad (Nickel-Cadmium) batteries, which poisoned the environment when disposed of improperly, didn’t offer much up-time (comparatively), and had the annoying habit of remembering how long you had used them and refusing to work any longer the next time. Then there were NiMH (Nickel-Metal-Hydride) batteries; they offered longer life, better efficiency, and no memory problems. Accu HITACHI C 5D

The current generation of laptops still uses Lithium Ion batteries. These batteries offer a gain in efficiency over NiMH batteries, with an extremely low discharge rate (long shelf life when charged) and efficiency improvements over Lithium Ion batteries; movement towards new battery technology has slowed, however. Even though improvements are made, we are getting to the point where packing so much energy into a tiny space is getting a bit dangerous. If you’ve ever seen news footage of a laptop computer igniting, that’s what could happen if the battery goes haywire. Don’t be too worried about it, though, as that is an extremely rare event. A single fire typically causes thousands of batteries to get recalled, though, since there is little room for error where a burning laptop is concerned. Accu HITACHI CD 4D

Some laptops claim up to 5 hours worth of up-time on one battery–take this figure with a grain of salt. That’s probably how long the battery would last if you put on the blank-screen screen saver and didn’t touch it for 5 hours. Expect more in the range of two or three hours per stock battery under continual use. If you plan to be on flights, trains, or buses for 10 hours at a time, buy some extra batteries, make sure you have a power plug handy, or make sure you get a model that has a nice add-on battery feature that can hold a lot of juice.

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Some designs offer a battery plate that fits on the bottom of the laptop, adding size and a few pounds but offering many more hours of battery life. If that’s what you need, check around for interesting battery setups. Several manufacturers also offer laptops with expansion slots that will accept a variety of peripherals, including a second battery–that second battery can double your battery life. If your laptop doesn’t offer that, you have to buy another of the same battery and may want to make sure you get a battery charger to go with it so that you can charge both batteries at the same time (one in the laptop, one in the charger). Obviously, that is not ideal. If you need it, just go for a model that offers the battery capacity you want. Also, keep in mind that extra batteries can cost up to and overUS$200 apiece.

When selecting a battery, manufacturers will often list an amount of “cells,” where each cell has a certain capacity; thus a 9 cell has 50% more capacity than an equal model 6-cell battery. That is useful for comparing directly, but the story is more complex if you wanted to compare different batteries on different laptops. Batteries have a voltage rating (V) and milli-Amp hours (mAH), which, if multiplied together, give you milliwatt hours. For example, a 14.8 V battery with 4460 mAHgives you 66,000 milliwatt hours (66 watt-hours). You can compare batteries this way, but also keep in mind that different laptops have very different power requirements that vary based on the components and how well the operating system manages power consumption. Typically, bigger, heavier batteries will give you a higher watt-hour rating. A 6-cell battery may be the same form factor as a 9-cell, but the 6-cell will weigh less since there’s less chemical in it to hold onto that charge. Accu HITACHI WR 14DMR

If you are a mobile warrior, you will want the most cells and/or most watt-hours you can get into your model so you can go 5 or 6 hours without a recharge. It is so painful to run our of power before you are ready.

1.Replace the batteries be careful
Laptops now are used lithium ion batteries. There life are basically constant which is only 500 to 800 times. So if you use the battery for the laptop power frequently, the battery life due to internal batteries would be failure after 1 to 2 years. When we open the battery testing batteries demonstrated by one or two batteries damage. However, due to the other batteries are also almost the same, even if you replace the failure of the batteries, the battery back to normal in a short time, will soon be leaving for the failure of other batteries throughout the battery once again can not be used. Accu MAKITA T1022DW
So, can we solve the problem by replace all the laptops internal battery? In fact, this is difficult. Because in the original battery, the capacity of the batteries, the terminal voltage and internal resistance consistency because of its internal batteries good accurate matching. The batteries we bought in the market has not been tested and paired. In amateur conditions we can not be paired for the batteries, so its capacity, internal resistance or other parameters will inevitably vary. Inside the battery, the batteries are connected in series together charge (in most laptop battery is divided into two groups of eight batteries, four series and then parallel to form a battery pack), due to the charging of the battery current, as the smallest capacity batteries will first fully charged, the other battery is not yet sufficient, so the terminal voltage of the battery pack to reach the set voltage, the charging circuit will continue to charge the battery pack. Accu PANASONIC EY6220D In this way, the original fully charged batteries will overcharge. Laptop charging circuit to reduce charging time, charging current is quite large, so make batteries overcharge huge heat, so that the batteries inside the liquid temperature, increasing pressure on the internal electrolyte is easy to dry up or overflow , leading to a further decline in the capacity of the batteries, overstaffed or even an explosion. The total capacity of the battery by which the capacity of the smallest batteries decided, and this will cause a vicious cycle, after repeated charge-discharge capacity of the battery pack will be a significant decline, leading to the laptops using time.
The same time, a lot of laptop battery in order to prevent unauthorized users to open to replace the batteries have Smart protection chip and anti-openings line. As long as the battery case is open or remove the batteries from the battery circuit board intelligent protection circuit will stop the output of the battery. Even if we re-connected batteries back to the battery circuit board or closing the battery case, intelligent protection chip is still not restored. In this way, the battery will not be able to output. We need to re smart chip reset can solve this problem, amateur conditions, we can not be smart chip reset. Accu MAKITA T221D Therefore, replaceable batteries may cause permanent damage to the battery. 
So how do we solve the problem of the battery? The best way is to buy a new original battery, but now a new original battery to hundreds or even thousands, so that spending is too high, exceeding the affordability of many consumers. However, there are some professional laptops repair stations, equipment and technologies that are good, and there are a number of repair stations and manufacturers of batteries there are long-term relationship, sophisticated matching factory battery.accu Toshiba Satellite L740 This will ensure the quality of maintenance. Change the price of the batteries in these places is about 300 yuan, although higher than the price of their own to replace the batteries, but the long-term use can protect battery. In addition, some repair stations also repaired the battery for half a year's warranty. In the use of the past six months, as long as the battery charge and discharge of about a hundred times, and the battery capacity and stability during this period, after the battery goes into stable, not easily damaged.
2.Maintenance of batteries has a knack

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In any case, the replacement of the batteries we need to pay a small price, so we should pay attention to maintenance in daily use the battery to extend battery life.
To maintain the battery, we must first reduce the number of battery, which means that when there is electricity, do not use the battery as much as possible. This can reduce the battery charge and discharge times, extend battery life. While this has brought some use for the inconvenience, but think every time you use the battery will need to pay two dollars, or work too hard.
3.Bnternal structure of Battery
Battery calibration procedures can extend the battery life has been a vexed issue. Support of people think that the battery calibration can eliminate the memory effect of the batteries and extend battery life. Opponents argue that now use lithium-ion batteries have no memory effect, therefore, the calibration procedure will only increase the battery charge and discharge times, to shorten the battery life. In fact, these two kinds of understanding are not comprehensive. Accu BOSCH 24618-01 Lithium-ion battery reduces the memory effect, but the memory effect still exists. Battery calibration is indeed able to reduce the memory effect, but this is not the most important, the main function of the battery calibration procedure is to establish a battery and control circuit of the contact, so that the control circuit can correctly identify the capacity of the battery, thus avoiding the battery charge or over-discharge phenomenon. Accu HITACHI CL 13D The same time, you can also ensure that the system shutdown before the battery dies, to protect the security of data. However, frequent use of the battery calibration procedure does increase the battery charge and discharge times. Therefore, we run a battery calibration procedure every three months or so on it. Accu DEWALT DC618
When we use the battery for laptop power supply or power adapter to charge the battery, do not unplug the laptops battery. Because the battery is charging or discharging state, the currents are quite large, if we try to plug the battery, can easily lead to spark not only result in the ablation of the contacts, the impact of current can cause the battery circuit board or The laptop charging circuit damage.

Apple heeft een update van zijn mobiele besturingssysteem uitgebracht. De nieuwe versie moet een einde maken aan een aantal bugs en lekken en is voorzien van een nieuwe functie voor iPad-gebruikers.

IOS 5.0.1 moest onder meer een einde maken aan de klachten van gebruikers over de beperkte batterijcapaciteit van de nieuwe iPhone 4S. Daarnaast is het lek van hacker Charlie Miller gedicht en krijgen iPad-gebruikers nu toegang tot multitask-gebaren.

Batterijfix iPhone 4S
In de nieuwe versie iOS 5.0.1 zegt Apple het snelle leeglopen van de batterij in de iPhone 4S op te lossen. Maar ondanks deze belofte klagen ruim honderd gebruikers op het Apple Support-forum dat de update het euvel niet verholpen heeft.

Apple verhelpt met de update ook het kraken van de iPad 2. Kwaadwillenden konden met een magneetje de cijfervergrendeling van de iPad 2 omzeilen. Ook Apple's eigen hoes voor de iPad 2, de Smart Cover, gaf toegang tot de iPad 2.

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Charlie Miller's lek
In de update is eveneens het lek gedicht dat security-expert Charlie Miller ontdekte. Miller toonde aan dat een legitieme app in iOS 5 een eigen code kon downloaden en uitvoeren in het geheugen van iPhones en iPads. Criminelen kunnen op deze manier persoonlijke informatie (adresboek of mailaccount) van de gebruiker ontfutselen.

Apple beschuldigde Miller van misleiding en trok zijn - zelf betaalde - ontwikkelaarslicentie in. Dit betekent dat Miller een jaar lang geen apps meer mag ontwikkelen voor Apple. Miller reageerde: "Wat ongelooflijk onbeleefd."

Multitasking-gebaren
Naast het fiksen van bugs en lekken heeft Apple voor de eerste iPad multitask-gebaren toegevoegd. Dit maakt het mogelijk om met meerdere vingers verschillende commando's te geven. Het samenknijpen van meerdere vingers op het scherm toont het bureaublad. Door naar links of rechts te vegen kan gebladerd worden door de openstaande apps. De multi-taskfunctie is te openen via Instellingen / Algemeen / Multitask-gebaren.Toen Apple op woensdag 7 maart iOS 5.1 uitbracht, werd er beloofd dat de batterijproblemen van iOS 5 eindelijk waren opgelost. Of dit ook daadwerkelijk voor iedereen het geval zou zijn moest echter nog blijken: iOS 5.0.1 zou ook een oplossing bieden, maar bleek voor vele iPhone-bezitters de problemen niet op te lossen. Volgens vele websites boekt iOS 5.1 boekt gelukkig meer succes. Onder andere de reacties op iPhoneclub en berichten op het iCulture forum wijzen er op dat de batterijduur flink verbeterd is.

iOS 5 zorgde er eind vorig jaar voor dat de batterij van de iPhone in sommige gevallen erg snel leeg was. Een niet gebruikte iPhone zou op een nachtkastje zelfs nog een flink batterijpercentage verbruiken. Apple erkende uiteindelijk het probleem en beloofde een oplossing in het onlangs uitgebrachte iOS 5.1.accu Apple MacBook Air 13.3-inch
Wij zijn benieuwd hoeveel iOS-gebruikers nu nog last hebben van de batterijproblemen van iOS 5.accu DELL Latitude CP Loopt he batterij nog steeds om onverklaarbare reden snel leeg? Of kan je iPhone nu tijdenlang op standby staan zonder dat de batterij ergens last van heeft?De afgelopen week heeft Apple twee beta versies van iOS 5.0.1 beschikbaar gesteld aan geregistreerde ontwikkelaars. In deze ‘minor’ update zijn voornamelijk een aantal bugs verholpen. De officiële Apple documenten melden de volgende verbeteringen/bugfixes:

• Bugfixes ten behoeve van de batterijduur.
• Activatie van Multitasking Gestures op iPad eerste generatie.
• Verbetering met betrekking tot security issues.
• Bugfixes voor delen van documenten met behulp van iCloud.
• Verbeterde spraakherkenning voor Australische gebruikers.

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De eerste drie punten zijn vanzelfsprekend de belangrijkste punten in deze update. We kunnen bevestigen dat de batterijbuur van de iPhone 4S met daarop iOS 5 beta 2 op gelijk niveau van de iPhone 4 is. Zonder enig probleem kan ik gemiddeld 16 uur op één batterijlading gebruik maken van de iPhone 4S. De batterij fix verbeterde in mijn geval de batterijduur met 6 uur!

Een andere welkome verbetering is de activatie van de Multi Tasking gestures op de iPad eerste generatie. In de beta’s van iOS 5 was deze functie standaard aanwezig, in de officiële release was deze echter weer uitgeschakeld. Gelukkig kunnen nu alle iPad bezitters weer gebruik maken van de zeer handige gestures.Twee weken nadat de iPhone 4S op de markt kwam, barst de traditionele klachtenregen over de batterijduur los. Bij elke belangrijke update van iOS en bij elke nieuwe iPhone komen ze terug, maar deze keer is het bij sommige gebruikers wel heel extreem. Het probleem bij de korte accuduur van de iPhone 4S zou wel eens te maken kunnen hebben met locatiediensten die voortdurend op de achtergrond actief zijn. accu DELL Inspiron 500m

Via Instellingen > Locatievoorzieningen kun je zien voor welke apps continu je locatie in de gaten houden. Heb je veel apps geïnstalleerd, dan kan dit uitgroeien tot een behoorlijke lijst. Een paars pijltje geeft aan of de locatiebepaling op de achtergrond actief is. Het kan zin hebben om dit voor bepaalde apps uit te schakelen. Zo bleek op mijn iPhone de app Roamler op de achtergrond actief te zijn, terwijl ik helemaal niet van plan ben om de komende dagen opdrachten uit te voeren.
Blader je omlaag in de locatie-instellingen, dan kun je via de optie ‘Systeem’ nog meer functies van de locatiediensten uitschakelen. Omdat deze instellingen standaard deel uitmaken van iOS 5, kunnen ook gebruikers van de iPhone 4 en 3GS ze uitschakelen om de batterijduur te verlengen. Er zijn mensen die beweren dat in iOS 5 GM een bug is geslopen, waarbij de locatiebepaling voor het instellen van de tijdzone constant actief blijft. Schakel je dit uit, dan zul je tijdens het reizen wel automatisch je tijdzone (en je klok) moeten aanpassen, maar het kan een spectaculaire verbetering van je batterijduur opleveren. accu DELL Inspiron 600m

Toch is daarmee het probleem met de kortere accuduur van de iPhone 4S niet definitief opgelost. Net als bij eerdere klachten over de batterijduur blijkt een kleine groep gebruikers er extreem veel last van te hebben, terwijl de meerderheid van de gebruikers niets bijzonders merkt. Apple blijkt daarom achter de schermen contact te hebben gezocht met gebruikers, die last hebben van extreem korte batterijduur.accu SONY VAIO VGN-P Series Apple vraagt deze gebruikers om een diagnose-app te installeren, waarmee het verloop van de accuduur te volgen is. Dit werd ontdekt door de krant The Guardian, nadat een Brit die online klaagde over zijn batterijduur werd benaderd door Apple.accu Compaq Presario V6400 “Ik kreeg een telefoontje van een senior engineer, die vertelde dat hij mijn posting had gelezen en daarom op zoek is naar gebruikers om data te verzamelen”, zegt de man. De Brit merkte dat zijn batterijduur elk uur met 10% omlaag ging. Bij oudere iPhones kan dat voorkomen, omdat de batterij niet meer in topconditie is. Maar bij een gloednieuwe iPhone is dat uitzonderlijk, als je het toestel niet op extreme wijze gebruikt.accu Toshiba Satellite L740 De Apple-engineer vroeg naar het gebruikspatroon van de klagende Brit en vroeg ook of hij een app wilde installeren, waarmee gegevens over het batterijgebruik geregistreerd worden. In voorgaande jaren heeft Apple wel vaker met diagnoseprogramma’s gewerkt, die gebruikers moesten installeren. Volgens de Brit gaf de engineer toe dat er sprake is van een probleem en dat Apple nog geen idee heeft waar het probleem zit.

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Gelukkig is er maar een kleine groep gebruikers, die last heeft van een extreem snel leeglopende batterij. Wel is de informatie die Apple over de batterij van deiPhone 4S verstrekt heeft, nogal moeilijk te bevatten. De spreektijd via 3G is met een uur toegenomen, maar de standby-tijd is vreemd genoeg afgenomen van 300 naar 200 uur. Discussies op het gebruikersforum van Apple leveren honderden reacties op. Gek genoeg wordt er in Nederland nauwelijks geklaagd over batterijduur, al kan dat te maken hebben met het feit dat de meeste Nederlanders en Belgen hun iPhone 4S nog maar een paar uur in bezit hebben. accu Compaq Presario V6700

Sommige bezitters van een iPhone 4S hebben het probleem opgelost door hun iPhone compleet opnieuw in te richten (in tegenstelling tot het terugzetten van een back-up van hun iPhone 4).accu SONY VAIO VGN-SZ Series Het probleem zou ook te maken kunnen hebben met het nieuwe Berichtencentrum in iOS 5, waardoor er constant meldingen binnenkomen van diensten als Foursquare en Facebook. Die verklaring lijkt alleen niet zo logisch, omdat iOS 4.x ook al voortdurend notificaties op je scherm toonde. Een andere boosdoener zou het adresboek kunnen zijn, waarbij de gegevens worden gesynchroniseerd met iCloud, MobileMe of Google Contacts. Het opnieuw instellen van deze diensten loste bij sommige mensen het probleem op. De nieuwe spraakassistent Siri lijkt niet de kortere batterijduur te veroorzaken. Wel zou je de ‘Houd bij oor’-functie kunnen uitschakelen, waardoor Siri steeds via de nabijheidssensor in de gaten houdt of je de iPhone bij je oor houdt. accu HP G6000

We zijn benieuwd hoe Nederlandse en Belgische iPhone 4S-bezitters de batterijduur van het nieuwe toestel ervaren. Daarbij maken we bewust alléén een vergelijking met de iPhone 4, aangezien oudere toestellen een batterij hebben die door vele laadcycli niet meer als vanouds functioneert.

In this post I will summarize most common laptop hardware related problems ever mentioned on this site.
I will not be digging into the operating system related problems, only laptop hardware issues.
I’ll provide most common laptop failure descriptions and give some suggestions how to troubleshoot or repair the problem. accu Asus Eee PC 1215B
Problem 1.
Laptop doesn’t turn on at all.

Problem description: When you plug the AC adapter into the laptop, there are no lights turning on at all. When you push on the power button, nothing happens. The laptop appears to be completely dead, makes no sounds, no indications of life. accu Asus Eee PC 1215P
Possible problem:
- AC adapter failed and the battery discharged completely. First of all, test the AC adapter. If it’s dead, replace the adapter.
- DC jack separated from the motherboard (or DC jack broken) and the laptop doesn’t get any power from the AC adapter. In this case the DC jack has to be replaced.
- Laptop motherboard failed. If that’s the case, most likely the laptop not worth fixing.
Here are some tips for testing laptop AC adapter and DC jack connector.
Also, make sure to read step-by-step instructions for troubleshooting dead laptops. accu Asus Eee PC 1215PE
Problem 2.
Laptop turns on but screen is blank.

Problem description: The laptop turns on, LED lights on the laptop turn on, cooling fan works but nothing appears on the screen. The screen is completely black and blank. There is no image on the screen at all, not even a very dim image. accu Asus Eee PC T91
Possible problem:
- This problem could be related to the memory failure. It’s possible one of the memory modules failed and the laptop doesn’t turn on because of that. In this case you can try reseating memory modules to make sure they are making good contact with the slot. You can try removing memory modules one by one and test the laptop with only one memory module installed. You can try replacing memory modules with new modules.
- If reseating/replacing memory modules doesn’t help, try removing the hard drive, DVD drive, modem, wireless card, keyboard, etc… In other words, disassemble the laptop to bare minimum and test again. If the laptop still doesn’t turn on, most likely you have failed motherboard or processor. accu Asus Eee PC T91SA
Read this guide for barebone laptop troubleshooting.
Problem 3.
Laptop turns on and off repeatedly.

Problem description:
The laptop turn on without showing any image on the screen. After a few seconds the laptop turns off by itself. Then it turns on and off again. It continue turning on and off repeatedly until you power off the laptop completely. accu Apple MacBook Air 13.3-inch
Possible problem:
Most likely it happens because of some kind of motherboard failure. You can try reseating/replacing memory as I described in the Problem 2. If it doesn’t help, I would say this is motherboard related failure.
In most cases it’s not worth replacing the motherboard, better to buy a new laptop. accu Apple MacBook Pro 15 inch Series
Problem 4.
Laptop makes noise while running. accu Apple MacBook 13 inch

Problem description:
The laptop turns on and everything works fine, except it makes some constant weird grinding or rattling noises. Some laptops make noises all the time, other laptops have them intermittently. accu Apple iBook G4 12inch Series
Possible problem: 
In most cases this noise is coming from the cooling fan or laptop hard drive. You can turn on the laptop, wait until it starts making noise and after that listen closely on the bottom of the laptop. If the laptop starts making noise when the cooling fan starts running, most likely you have a failing fan. Replace the cooling fan. accu Apple iBook G3 14inch Series
If the laptop makes noise even when the fan not spinning, probably it’s coming from the hard drive. Back up all personal data from the hard drive as soon as possible, it can fail any moment. Replace the hard drive.
Here’s another technique to figure out if the noise coming from the fan or hard drive. Remove the hard drive from the laptop and stat the laptop. Wait until it warms up and the fan starts spinning. If the laptop still makes same noise even when the hard drive removed, most likely it’s bad fan. accu Lenovo IdeaPad S10-3
Problem 5.
Laptop shuts down or freezes while in use. accu Lenovo IdeaPad S10-3 - 06474CU

Problem description:
The laptop turns on and runs properly but after a while it freezes or shuts down without any warning. When it happens, the laptop feels hot on the bottom. Also, the cooling fan works harder than usual. accu Lenovo IdeaPad S10-3 0647-2AU
Possible problem:
Most likely this is heat related issue. It happens because the cooling module gets clogged with dust and the laptop cannot “breath” properly. The laptop shuts down or freezes because the processor (CPU) overheats.accu Compaq Presario CQ71 Cleaning the cooling fan and heatsink should fix the problem.
Here’s how you fix laptop heat related problems.
Problem 6.
Laptop battery not charging properly. Accu/Batterij Samsung RC512

Problem description:
The laptop battery stopped charging properly. It’s not charging at all or charges only after you adjust the position of AC adapter plug inside the power connector on the laptop.
Possible problem:
- Failed battery. If the battery stopped charging completely try reconnecting the battery first. If it doesn’t help, remove the battery and try running the laptop just from AC adapter. If the laptop runs fine from AC adapter but doesn’t charge the battery at all, most likely it’s either bad battery or motherboard problem. Try replacing the battery first.
- Loose DC power connector. If the battery charges only after you adjust the position of AC adapter tip inside the connector, this is DC jack related problem.
Here are some tips for troubleshooting battery charging problems. accu Lenovo IdeaPad S10-3 0647-2BU
Problem 7.
Screen light doesn’t work or fails while the laptop running.

Problem description:
The laptop starts properly but after a while the screen light turns off. The image still appears on the screen but it’s very dark. In some cases the screen light never starts but you still can see a very faint image on the screen. In all cases the laptop video appears to be fine on the external monitor or TV. accu Lenovo IdeaPad S10-3 064738U
Possible problem:
Most likely it’s either the screen inverter or screen backlight lamp (CCFL) failure. Both fail very similarly causing the screen light to go off. In order to trobuleshoot this kind of failure effectively, you’ll need some spare parts: either new working inverter or known good backlight lamp. accu Lenovo IdeaPad S10-3 064752M
The following article explains how to troubleshoot laptop backlight failure. accu Lenovo IdeaPad S10-3 064757M
Problem 8.
Laptop has strange or garbled image on the screen. accu Lenovo IdeaPad S10-3c

Problem description:
The laptop turns on properly but shows bad, wrong or garbled image on the screen.
Possible problem:
- Graphics card failure. First of all, test your laptop with image output on the external monitor.Accu/Batterij LG F1 If you see the same problem on the external screen, most likely this is graphics card related failure.
- If the problem appears only on the laptop screen, it could be related to one of the following: poor connection between the video cable and motherboard or LCD screenor failed video cable or failed LCD screen.
This article shows some examples of failed laptop video and explains how to narrow down the problem.
Also, read this article explain why a laptop shown strange colors on the screen. Accu/Batterij LG F1-2225A9
Problem 9.
Some laptop keyboard keys stopped working. Accu/Batterij LG F1-222EG

Problem description:
The laptop turns on and runs properly but some keyboard keys do not work at all or type wrong characters. Accu/Batterij LG F1-227EG
Possible problem:
Most likely this the keyboard failed. Laptop keyboards are not repairable. If some keys stopped working, you’ll have to replace the keyboard.
Problem 10.
Missing or broken keys on laptop keyboard. Accu/Batterij LG F1-227GY

Problem description:
A key got separated from the laptop keyboard.
Problem solution:
If a key got separated from the keyboard, it’s still possible to fix it without replacing the entire keyboard.
Hopefully you didn’t damage the key hinges.
If you have many keys missing, probably it makes sense to replace the whole keyboard. Accu/Batterij LG F1-2325A
The following article explains how to attach a key back to the keyboard.
Problem 11.
Laptop makes repetitive beep sound on startup. Accu/Batterij Samsung RC530

Problem description:
You turn on the laptop but there is no video on the screen. Instead, the laptop makes repetitive beeping sound. You can “fix” the problem if you press on the keyboard keys.
Problem solution:
Most likely it happens because there is a stuck key on the keyboard. In this case you’ll have to replace the keyboard. Accu/Batterij Samsung NT-RC530
Problem 12.
Liquid spilled on laptop.

Problem description:
You spilled something on the laptop and it’s stopped working. Accu/Batterij Samsung RC520
Problem solution:
Liquid spills are very dangerous and unpredictable. If it happened, turn off the laptop ASAP, remove the battery and do not use it until all internal parts are inspected for liquid damage.
It’s sill possible the laptop will work again after you clean the damage. Accu/Batterij Samsung NP-RC520