TATTU R-Line 850mAh 14.8V 95C 4S LiPo Battery Pack with XT30 Plug(2 Pcs)

Great battery no complaints

Packs work flawlessly as expected of R-Line's, no sag, doesn't get too hot, insane performance! You'd be hard pressed to find another brand that can keep up cycle after cycle. Just make sure you take good care of them and they will preform for you time and time again with little to no voltage sag.

Love tattu batteries, rlines most of all. No sag issues, and extremely long life cycles when maintained properly. My go to lipo

Great lipo. It's R-Line. best name in the hobby.

I've bought 4 of these since they're pretty much the only ones on Amazon for my needs. Every single one of mine have had unacceptable internal resistance for a high performance battery. Ideally, I'd see less than 5m Ohm per cell. Acceptably, I'd see less than 15m Ohm per cell. But all of my batteries have had over 15m Ohm resistance in at least one cell. My very newest battery has 30m Ohm resistance, which is grounds for retiring the battery. I'll try to see if I can exchange that one and maybe get better luck. On the one hand, it does allow my drone to fly. On the other hand, I have a constant fear of my house burning down every time I go to charge one of these.

I can’t recommend tattu overall but this battery is good for my Ar600 Wing

These are great. Lots of amps running my custom drone and I am very happy with these. I can jam the throttle and the drone will shoot into the sky and voltage holds firm. On my lower quality batteries, the voltage alarm goes off after very short flight times and does not hold up to a high current surge. These are as good as I have found! LOVE THEM.

Don’t waste your money or time on inferior bats. You save a few bucks to shave 5-10 off your enjoyment on every single flight. These are worth every penny.