This is more out of curiosity. I know that the APM2 board was a recent redesign and I was wondering why a backup battery was not provided for the GPS. I am thinking something on the lines of a micro battery like in here GPS utilizing MT3229 with micro cell Li ion battery or the hack detailed at ArduPirates.
I believe there has to be a good reason for it and would like to hear that :)
Replies
I suppose this is the same discussion as this one
http://diydrones.com/profiles/blogs/add-a-backup-battery-on-the-mtk...
Note that my hack implemented the circuit referenced by Brad, yet it had problems... follow the other discussion, I am not sure at this point those problems have been solved. Should be the same for APM1 and APM2 but who knows?
Dror
Hi Mahesh, you can add a backup battery to the MT3329 on the APM2 if you like. Check page 10 here:
https://docs.google.com/file/d/0B_dHj7E2weiiNmUzNDA3OTktNTNhNy00Y2Y...