RadioMaster 7.4V 2S 6200mAh Li-Po Battery for Boxer / TX16S - XT30

I use it in my boxer and I'm satisfied. I fly for an hour every day or 2 and I charge it every 1-2 weeks.

I’ve got one in my custom boxer,

I can fly for a several days and never need a charge. It’s impressive how long it lasts. Would recommend if it will fit in your radio! 10/10.