arhi
Member
Hi,
I have few BL-5C batteries (from some nokia phones) that I would like to use in some of mine projects. I'm not very good on analog electronics, especially on the "how to charge the battery" part...
The idea is to create a system that will use 1 (or more if needed) nokia BL-5C. The system will use the external + battery power (on/off the base station) and while on external power, it should charge the battery. I'm using PIC16Fxxx or PIC18Fxxx (not yet decided but might go with 18F4550 or 16F877A + 18F4550 combo + some 12F508 and 16F628 for some daughterboards) and the PIC should be aware of "battery status". (for e.g. if the battery is low - it should move to base station and recharge).
I was thinking about ICL7673 or similar "automatic battery back-up switch" to run circuit on both external and battery power, but I'm stuck not knowing:
- what is the middle pin on BL-5C
- how to charge BL-5C
- how to read "remaining power" in BL-5C
I believe a datashit of BL-5C should explain all this but after 3 days of googling I just found whole bunch of "purchase charger", "this and that phone datasheet" etc .. no technical details on the battery itself
Thanks in advance
I have few BL-5C batteries (from some nokia phones) that I would like to use in some of mine projects. I'm not very good on analog electronics, especially on the "how to charge the battery" part...
The idea is to create a system that will use 1 (or more if needed) nokia BL-5C. The system will use the external + battery power (on/off the base station) and while on external power, it should charge the battery. I'm using PIC16Fxxx or PIC18Fxxx (not yet decided but might go with 18F4550 or 16F877A + 18F4550 combo + some 12F508 and 16F628 for some daughterboards) and the PIC should be aware of "battery status". (for e.g. if the battery is low - it should move to base station and recharge).
I was thinking about ICL7673 or similar "automatic battery back-up switch" to run circuit on both external and battery power, but I'm stuck not knowing:
- what is the middle pin on BL-5C
- how to charge BL-5C
- how to read "remaining power" in BL-5C
I believe a datashit of BL-5C should explain all this but after 3 days of googling I just found whole bunch of "purchase charger", "this and that phone datasheet" etc .. no technical details on the battery itself
Thanks in advance