4S 1300mAh 100C 14.8V LiPo Battery Pack with XT60 Plug for RC Heli Airplane Drone FPV Racing

For how reputable this brand is, the price isn't bad at all. Ordered 2, and the packs both came perfectly balanced at 3.8v, a good storage voltage. I didn't exactly mean to buy the 1300s instead of the 1550s for capacity, but I'm glad I did since lower capacity charges substantially faster at 1c, and the reduced weight seems to make the difference in flight time less than I thought.

Worked well for the first several charge cycles. However, after that, their life expectancy declined rapidly.

Love them. So punchy. Will probably just by these from now on.

I must have got a dud battery because from the beginning this battery was donk. Once it started to get around 60% discharge, the voltage start dropping very badly.

Nice batteries for the price

This battery came already puffed since it came almost fully charged and who knows how long it was like that.

Gens ace is always a good choice. As advertised. Good punch and charge quick.

The battery will not charge or power anything up. Will update with how many cells of the 4 are dead once I get a new battery checker but the charger will not accept it due to low voltage and it won't even power up an LED on the quadcopter.UPDATE:It was totally flat. No voltage at all.At least the replacement was sent quickly and I don't have to return the old since it's a damaged lithium battery.I'm happy with the battery for now, would be 5 stars, but just wondering how many are duds/ old stock. Mine did have some adhesive on the face of the battery as if there was a sticker on it or something. The second one didn't have that. Makes me question if it was truly new or if it slipped through QC or something.