Battery choice/source help?

Not for long... I use a little flashlight W/2 2032's and 5 - 6 hours @ 20 mA until the light is useless. 100 - 160 mAH total capacity so put current/mAH 100 mA/160 mHA = 1.6 hrs... IF you are lucky. The 2032 simply wasn't intended for that service.

Bob