Amazon.com: DeadEyeVR Valve Index Wrist Mounted Battery Kit - Accessory That Charges Your Controllers While Playing : Video Games
Valve Index Controllers | GameStop
Replacing battery in Valve Index Controller (disassembly and repair) #righttorepair - YouTube
Replacement battery for Index controllers now is available on Aliexpress at XINJ store. It's 1000mah, not 1100mah as the original battery, but now people can perform repairs without soldering skills. I spent
Valve Index Wrist Mounted Battery Kit - Accessory That Charges Your Co – DeadEyeVR