Hyperion 1300mAh 2S 7.6V G6 HV Lipo Battery : FatShark / Head-play / FPV Goggle Hyperion G6 HV Hardcase Lipo for FPV goggles offer more capacity per weight compared to original FatShark FAS-BAT-HS1A battery. The G6 1300mAh HV is about the same shape, size and weight as a G3 standard-voltage 1150mAh hardcase pack of same C-rate, but delivers about 10% more flight time! Battery includes a banana discharge lead adapter for compatibility with all chargers. Comparing equal Size, Weight and C-Rate performance, the G6 HV 3.8V 1300mAh Hardcase packs for goggles replace Standard 3.7V Lipo Packs of about 1150mAh capacity. BR&gt;With Hyperion G6 HvLi, you have two good options. When charged at standard lipo terminal voltage of 4.20V/cell, they deliver the same capacity as standard lipo packs of the same weight and size. Or when charged to 4.35V/cell maximum, the G6 HV packs deliver about 10% longer flight times. These Packs include pre-installed charge adapter, with JST-XH Balance connectors and a banana discharge lead adapter for compatibility with all chargers. See the "Manuals & Support" tab for a link to full specifications for the G6 HV lineup. Continous C-Rate for 100% rated capacity delivery is 1/2 C-Max rate. Firmware updates which include a new HV Lipo Charge Mode for these Hyperion chargers are available at hyperion-world.com: EOS0720I-AD, EOS0730I, EOS0720iSDUO3 There is no low battery alarm built into the Headplay HD, and the Headplay display will turn off whenbattery reaches 6V. When charged as HvLi to 1300mAh capacity, the included Hyperion battery should be limited to 65 minutes of play time to avoid over discharge, or 55 minutes if charged as standard lipo with 1150mAh capacity. Setting a transmitter or cell phone alarm/stopwatch is a good idea to track battery time.