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

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

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.

Good battery, I smashed it pretty hard but didn’t seem to affect I have a regular 650mah tattu Can’t say I feel phenomenal power but on the other hand they are a bit heavier

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

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.

they work pretty good for freestyle no real issues but my crux 35 is done for and i want to return these basically new batteries but cant

Works great