How to rebuild a Li-Ion battery pack

Implemented for Fujitsu - Siemens Lifebook S-Series FPCBP25 battery pack
source: Electronics-Lab.com

---

Warning If you are not completely sure what you are doing, don't apply what is described below. In any case www.electronics-lab.com does not have any responsibility in any way to the consequences that this guide may have. Read it at your own risk. Please don't continue reading if you don't agree with the above.

 

page 4/4

Place the pcb with the batteries soldered in the original plastic box. You should have try if they fit the box in your steps while soldering.

 

Use a multimeter to check for short circuits. Measuring the cells you will see that are not fully discharged it's recommended to store Li-Ion cells in a 40-50% charge level.

If everything looks good, apply some glue around the plastic case.

You can also use clamps to glue the plastic encloser tautly

As long as the glue takes to dry place the old cell on a separate small plastic bag and depose to a battery recycling bucket. Don't throw them along with ordinary rubbish.

Now it's the big time! Place the pack back in your notebook. If everything is ok the indicator should saw that the battery is charging normally. The arrow in the above image shows this. The first charge took around 2.30 hours to complete and the first discharge last about 2.45 hours. That's good results! Now your notebook looks like new!

During the first 3-4 charges cycles don't let the notebook charge in another room that this you are so you can observe for any malfunctions that can cause excess heat during charging - discharging.

 

.: Resources

Download the article in PDF format (1,6MB)

References about Panasonic CGP345010 Cell
Panasonic rechargeable lithium ion battery OEM products
Online Li-Ion cells at AllElectronics.com
CGP345010 3,7V-1400mAh Panasonic Prismatic Cell - Datasheet
Li-Ion rechargable Cell Thermal-Vacuum Test Results
An Innovative Low-Cost Communication Sattelite using CGP345010 cells (PDF)
Nanosatellite Final Design Report

Li-Ion Charger Application Notes
Charging Simplified for High Capacity Batteries - Microchip application note
A Li-Ion battery charger using TSM102A - ST Microelectronics
Highly Integrated Single-Cell Li-ion/Li-Polymer battery charger - Intersil
Off-line Li-Ion battery charger with P89LPC916 - Philips
LM3647 Reference Design User’s Manual - National
How to Design Battery Charger Applications that Require External Microcontrollers - MAX846A

Other Sites
Power ICs Charge Ahead In One-Cell Li-Ion Applications
More Li-Ion Charger ICs


 

<< back to page [3]   -   Go to articles index >>

 

  Electronics-lab.com (C) 2002-2009
Any logo, trademark and project represented here are property of their respective owner - [Privacy Policy]