Christoph Pulster wrote: > While working out a solution, we get stuck on the point the battery has > some coded ID-Chip. This chip is not available on the market. > Also the data can not be copied to another IC because its crypted.
Hmm, I wonder what that would be or what it would do :-) I haven't actually taken apart a GTA02 battery yet, but what should be in there are some pretty standard Li-Ion protection circuit (note that cut-off voltage and cut-off behaviour can differ among such protection circuits, e.g., the GTA02 battery needs some prodding to come back to life after a cut-off. That's what caused all the fun with the Vsys cap problems.) and of course the Coulomb counter. The bq27000 is a pretty accessible part. You can buy it at Digi-Key. No secret handshake involved :-) Paul Fertser and Joerg have done some investigation on the factory settings of the bq27000, so they may have suggestions for a better configuration. - Werner _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community