How to Make or Repair Batteries for a PDA or Handheld PC

Links to build and repair instructions for PDA or HandHeld PC batteries. If you have written a do-it-yourself report yourself (or if you know of a report not linked here), please submit a new entry.

3COM Palm III	Convert your cradle into a battery charger.
3COM Palm III	Convert your cradle into a battery charger (in German).
Apple eMate	Battery hacks.
Apple eMate 300	Rebuilding the rechargeable battery unit.
Apple eMate 300	How to rebuild a battery pack.
Apple Newton MessagePad 110, 120, 130	Instructions for refurbishing a battery pack.
Apple Newton MessagePad 2000 / 2100	Battery pack refurbish guide.
HP/COMPAQ iPAQ 38xx/39xx	DIY: battery replacement.
HP/COMPAQ iPAQ 38xx	Pictures from the inside and battery replacement instructions.
NEC MobilePro 770/780	How to rebuild the battery.
Psion 5mx	Adding a battery recharge circuit. This project is a solution to what many Psion users find very frustrating: having to replace the AA batteries with new ones or rechargable ones, sometimes very often.
Psion Revo+ (Diamond Mako)	Disassembly of the PDA and replacement of the batteries is fairly simple if you have the right tools and half an hour to burn.
SHARP SL-5500 (Zaurus)	DIY battery pack.
SHARP SL-5500 (Zaurus)	Selfmade battery pack 5V/4800mAh (in German).
SHARP SL-5500 (Zaurus)	Selfmade battery from Nokia 7210 mobile phone (in German).
SHARP SL-5500 (Zaurus)	Selfmade battery pack (in German).
SHARP SL-5500G (Zaurus)	Battery pack (in German).
SHARP SL-C750 (Zaurus)	How to build an external battery.
Sony Clie PEG-UX50	Battery modding.
Tungsten	Battery replacement.
Tungsten T3	How to build a large external battery (in Spanish).