This season, I changed to two LiFePO4. They served me well. The biggest enemy to endurance continues to be radio transmissions (hand signals only go so far). While flying, I monitored their voltage and was very pleased; my longest flight was just under six hours.

My electrical devices are these: radio, transponder, 302, 303, FLARM, and Oudie.

Raul Boerner
LS6-b
DM