Posted 24 February 2018 I have been working on Wall-E2, my autonomous wall-following robot, for almost three years now, and it seems like I have been struggling with the battery and charger arrangement for that entire time.   I started out with 4 AA batteries, but quickly moved on to a pair of Sparkfun 2000mAh … Continue reading TP5100 2-cell LiPo Charger Module Study