Vision FPV V2 3500mah Goggle/QX7 Battery
This is a high Capacity 3500mAh, 2 cell, 7.2v Lithium-Ion rechargeable battery. It's a great replacement battery for most popular FPV goggles. Compared to stock batteries, "power on" time is increased from the factory 2.5 hour range to 4+ hours of duration.
The battery can be charged at 1/2C or 1.75 amps using a suitable charger compatible with Lithium-Ion cells or LiPo batteries.