I ordered 3 Troy Built Li-Ion packs from them late Summer/Fall last year and 2 of the 3 packs are no good! (they went bad over the Winter and were NOT plugged in) I have been flying with Fromeco batteries since 2005 and NEVER had a battery go bad on me and I have bought alot! I think I will wait until Fromeco finds a new supplier and stick with what works.