Gens Ace batteries have been proven within the Radio Control community to deliver reliable and consistent performance for all modelers alike. All Gens Ace batteries offer superior cell matching at the factory, and are extremely consistent in selecting matched cells after each and every batch produced. Additionally, low internal resistance (IR), offers modelers stable voltage output through the whole duration of the battery.
Cell Count: 2S
Balance Plug: JST-XHR
Connector Type: JST-SYP
On a practice day, I've run about 3 fuel bottles through my engine (~1.5L or ~0.4gallons) and the voltage was still around 7.6v according to the telemetry in my Sanwa MT-44; this is powering two Savox 2274 servos, a MyLaps transponder, Sanwa RX-47T receiver, and KO Propo electronic switch.
Assuming it fully charged it's still around 7.6-8.0v after a 30-45 minute main.
This thing will last all day long without an issue. The cell resistance is high (around 25-30 milliohms per cell) but to be honest every receiver battery I've come across is.