Tattu 14.8V 4S 5200mAh 35C LiPo Battery - XT60

Excellent battery.

Long range power

Charges from 3.65 per cell to 4.20V with approximately 2500mAh. I fly 7 inch LR cruiser Source 1 with 6 inch biblades EMAX 2807 1700kv. With no freestyle maneuvers just cruising I get 11-12 minutes flight time. Battery assembly quality is good. To turn a disadvantage of a big brick into something useful I mount my GPS unit on a top of the battery with a pair of adhesive velcro strips, that can save on getting a separate GPS mast for quad.

Good battery

Upgraded to these from some terrible 3S batteries (not terrible because they were 3S, terrible because they were junk). These are much better.