(2-Pack) 7.4V 1500mAh Li-Po Replacement Battery for Flysky FS-GT5 2.4G 6CH Transmitter RC Remote Controller, with 2S, JST Connector and USB Charger

Purchased to use with a "Radiolink RC6GS v3" RC transmitter. It'll also work with whatever takes a JST plug. They're physically smaller than I anticipated but... that's actually good in this case.If you're wondering about energy comparison with AA each battery is about 12.6 watt hours. 6AA alkaline at 1.5V run approximately 25 watt hours. So more than half. I was using AA NiMH which are slightly lower total energy at 20 watt hours. I'm planning on buying or making a plug to run both in parallel since the base of my transmitter has room for both packs. If you also have a Radiolink transmitter that takes 6AA batteries it might behoove you find a physically larger battery. But these will suffice and the weight savings is significant (which you wouldn't think would matter but... try going on a 5 mile trail walk with it and tell me you don't wish your controller was lighter)They ship with a neat little USB to balance plug charger. I'd never seen such a thing but it's a cool feature. I could charge my transmitter batteries in the car if I ever needed to.

Just one my flysky controller needed instead of AA laying g around everywhere

These little batteries are game changer for my Flysky GT5 controller. I’ve noticed a great longevity in battery life from a full charge than using normal AA batteries. They charge pretty quickly from a fully drained battery to a full one. Room about 25mins for mine to fully charge on the charger I’ve been using. Great value for the money!

Works great

Work great and at a great price

I love it. It’s exactly what I need to run my lights on my RC helicopter.

works great

I had forgot to remove the AA batteries from my transmitter and the contacts corroded. I purchased these hoping the lipo connection wasn't affected. It wasn't. Transmitter turned right on. Saves me from having to buy a new transmitter.