Repair4Laptop: Do-It-Yourself Laptop and Notebook Upgrading, Modding and Repairing
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Repairing of Laptop and Notebook Batteries

Do you need to solve a problem with your laptop or notebook battery? Do you want to build a battery yourself? Here are links to do-it-yourself instructions. If you have written a free guide yourself (or if you know of a report not linked here), please submit a new entry.



Main Battery

N.N.Troubleshooting flowchart for laptop and notebook battery problems. The battery won't charge or your notebook encounters a short power life? Start your investigation with this flowchart.
Apple MacBook AirBattery replacement is easy.
Apple PowerBook G3 PismoBattery take apart photo gallery.
ASUS A2These notebook accumulators are not meant to be disassembled by customers. But if you are a thrifty guy and always have a hard time to throw away stuff, you may try to disassemble it in order to replace just the failing cells. Before you cause damage on a vital part of the battery take this article as "what to avoid" topic.
ASUS M6NFix for bad battery contacts problem.
ASUS Z71VAdding a secondary battery, from 1h 45m of battery life to six hours of battery life using some junk from the basement and a used Dell laptop battery. The theory behind this modding should work on pretty much any laptop, notebook or netbook out there.
Canon Innova Book 360CDNi-MH Battery cell replacement and CMOS battery customization.
COMPAQ Armada 100S (aka Mitac 5133S) [archived link]RAM upgrade, hard disk upgrade and AMD K6-2+ CPU overclocking as well as underclocking instructions (with jumper settings and voltage table). Battery replacement (in German).
COMPAQ Armada M300Complete disassembly instructions, pictures from inside the battery.
COMPAQ Contura 4/25cxPictures from inside the laptop. Voltages on the power supply interface and battery pinout. Circuit diagram of the 4 MB memory module. Circuit diagram of the 16 MB memory module. Motherboard outline with chip product numbers.
COMPAQ LTE 5100Build your own battery.
DELL Inspiron mini 9Ten ways to upgrade your netbook. Due to their diversity, netbooks don't share common upgrade paths as typical desktop PCs do. Here are instructions for: battery replacement, rearranging the keyboard keys, upgrading the solide-state drive, adding more RAM, overclocking the processor, improving the Wi-Fi from 802.11g to 802.11n, adding a touchscreen, adding a GPS receiver as well as adding a drive-activity light.
DELL Latitude D500How to open the sealed main battery of this laptop with a guitar pick. It had to be taken apart because the locking mechanism on the battery was broken. You can fix it by using the locking mechanism from another similar dead battery.
Fujitsu-Siemens LifeBook S-SeriesHow to rebuild a Li-Ion battery pack.
Fujitsu-Siemens LiteLine 6133 SX (aka Mitac MiNote 6133 SX, IPC Topnote 6133, HPC NOTE 6133, NetBook 6133, Notestar NP 6133)Complete disassembly, upgrade tips for CPU and battery repair (in German).
GateWay 2000 HandBookExtending the EDO-RAM to 16MB, replacing the hard drive with a 1GB CF card connected to a CF-mini-IDE adapter, changing the CMOS battery, extending the battery capacity six times and building an on/off switch for the internal speaker.
GateWay 2000 HandBook 486How to open the machine, upgrade the RAM, replace the hard drive with an 800MB flash drive, replace the CMOS RAM backup battery and build a 4 AA NiMH battery pack.
HP/COMPAQ 6735bSome bad experiences with a cheap non-original replacement battery.
IBM ThinkPad 240How to repair the notebook batteries.
IBM ThinkPad 600Battery Page.
IBM ThinkPad 600Battery problem.
IBM ThinkPad (misc. models) [archived link]Investigation and repairing of a non-charging Li-Ion battery (in German).
IBM ThinkPad 600How to get inside the battery, some take apart instructions and pictures.
IBM ThinkPad i1400HOW-TO: Laptop resurrection and upgrade, battery revival, membrane keyboard repairs, trackpoint transplant, adding USB ports and wireless LAN.
IBM ThinkPad T2xRebuilding a laptop battery: when your laptop battery is about to give up the ghost, you are probably thinking of the typical three alternatives. The most obvious, of course, is "wow, what a great justification for buying a new laptop". With laptop prices falling and no such luck with battery prices, this almost makes sense. But, most of us will probably just bite the bullet and buy a new battery. The third alternative would be to replace the cells in the battery you already have. If you are not fairly skilled in working on electronics, this is not necessarily a good alternative. Financially, it also looks like a good choice.
Medion MD5400Cleaning the cooling fan. Jumper settings to reduce the CPU core voltage, to gain longer battery uptime (in German).
OQO 01/01+Battery rebuild: in a standard 4000Mah battery, there are 2 cells side by side in the casing, each having a +/- pathway on a ribbon connector back to the circuit board. The only difference in the double capacity battery is the two cells are actually double-stacked for 4 batteries.
Panasonic Let's Note MiniHow to take apart the battery (in Japanese).
Sony VAIO PCG-505EX/64How to repair a dead notebook battery (in Japanese).
Sony VAIO PCG-505FXHow to rebuild your BP51 Li-Ion battery.
Sony VAIO PCG-505TSBreathing new life into the dead battery pack.
N.N.Batteries for Portables: the dirty little secret.
N.N.Linux tools for batteries in laptops and PDAs.
N.N.Take these practical steps to extend your battery's operating time and the life of the battery itself.
N.N.Talk to your battery: battery refurbishment programs (a small download, linux required) for notebook batteries controlled by the BQ2092 and BQ2040 (and maybe others).
N.N.HOW-TO: Rebuild your laptop battery.

Auxiliary CMOS Battery

Acer Aspire 5672WLMiHow to remove the default BIOS password by disconnectng the CMOS battery to resolve a standby problem.
Acorn A4CMOS battery replacement.
Apple PowerBook DuoHow to replace the backup battery (in Japanese).
Apple PowerBook Duo 2xxMemory upgrade, keyboard exchange, hard disk upgrade, modem installation, backup battery replacement (in Japanese).
Apple PowerBookMarking a set of batteries by laser etching, to avoid confusion when switching the batteries.
Apple PowerBook 500Auxiliary PRAM battery installation.
Apple PowerBook 540cA notebook to Digital Picture Frame conversion. Disassembly tutorial, clock batter ressurection, wooden case HOWTO.
ASUS Eee PC 1201nThis guide shows how to remove the NetBook memory modules, keyboard, top cover, hard drive, cooling fan and CMOS battery.
Canon Innova Book 360CDNi-MH Battery cell replacement and CMOS battery customization.
COMPAQ Armada 1130TChanging a flat CMOS battery and upgrading the hard disk.
COMPAQ Contura AeroHow to replace the CR 1220 CMOS battery.
COMPAQ Contura AeroAn illustrated step-by-step CMOS battery replacement guide.
DELL Vostro 1220This guide explain how to remove and replace a failed hard drive which is mounted deep inside the laptop case it will also show how to access and remove other main laptop parts such as DVD drive, memory modules, keyboard, wireless card and CMOS battery.
GateWay 450X4Repair and service of an old laptop turning a clunker into a juwel: RAM upgrade and BIOS battery replacement.
GateWay 2000 HandBookExtending the EDO-RAM to 16MB, replacing the hard drive with a 1GB CF card connected to a CF-mini-IDE adapter, changing the CMOS battery, extending the battery capacity six times and building an on/off switch for the internal speaker.
GateWay 2000 HandBook 486How to open the machine, upgrade the RAM, replace the hard drive with an 800MB flash drive, replace the CMOS RAM backup battery and build a 4 AA NiMH battery pack.
GateWay 2000 HandBook 486This article describes how to rebuild a battery for this notebook so that standard rechargeable AA cells can be used.
HP Pavilion N5190Shared knowledge: a take apart picture gallery and disassembly guide. Cleaning the fan from dirt and remounting the CPU using thermal conductive paste. Upgrading the hard drive. Replacement of CD/DVD, LCD video driver board and BIOS battery. Fixing a broken power adapter jack.
HP/COMPAQ NC6320This guide explains how to remove and replace the display panel from. Also you can use this guide for: replacing or upgrading the memory module installed in the internal memory slot, removing and replacing the keyboard, removing and replacing the cooling fan, cleaning the heat sink, removing and replacing the CMOS (RTC) battery.
IBM ThinkPad 600EHow to power an external microphone. BIOS battery replacement instructions with pictures.
NEC Versa 4050HHow to change the clock battery which is located under the right wrist wrest, disassembly required (Sanyo CR2430 with Leads added. MnO2-Li cell 3V.) The Bridge Battery (Resume Battery) powers the system for up to 5 minutes while in suspend mode so you can swap main batteries without an AC connection. If you don't plan to do this, you may be able to function with this battery dead. Disassembly is required for replacement, too (NEC Corporation BH072600-54 7.2V 60mAh NiMH 29601A. This is a shrink wrapped pack of 6 Varta V60H NiMH batteries with leads and connector. Maybe the V60H has been replaced with the V70H which appears to be the same dimensions but 16% more capacity. Main Battery: NEC OP-570-61001 10.8V 25000mAh Lithum Ion.
Toshiba Portege A600/A605In order to access the cooling fan you have to remove the bottom cover. This guide also explains how to access the laptop memory, DVD drive, hard drive, wireless card, audio board, SC card reader, CMOS battery and power jack.
Toshiba Satellite A45-S151How to replace the Real Time Clock (RTC; aka CMOS) battery inside the notebook.
Toshiba Tecra 520CDT [archived link]Complete disassembly to replace an old CMOS battery.
Toshiba Tecra S1This guide explains how to remove the system board from the notebook. It will also illustrate how you can disassemble the notebook and remove, replace or clean the following parts: battery, hard drive, modem card, memory module, Wi-Fi card, CPU, heatsink, fan, keyboard, touchpad, dvd-rom, top cover, display assembly, speakers.

External Batteries

Toshiba Libretto 50, 100Build an efficient 8-hour external battery for only $70!
Valence Technology N-ChargeTaking apart, unsoldering and fixing a broken external laptop battery.
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© Werner Heuser 2005-2014 · http://repair4laptop.org/notebook_battery.html · last change Wed Aug 22 2012