My Radix just arrived, and I found out that the 6s Zeee battery I bought for my Radix doesn't fit in the battery tray (the battery is too long). The CNHL batteries I have with EC5 connectors are also too long. Trying to find batteries with a decent mAh rating and C rating that fit and have
XT90 connectors hasn't been easy. For now, I settled on a pair of HRB 4000mAh batteries with a 60c rating because I can get them tomorrow. I will look into Corally batteries and others that will fit when I have more time to research them.