https://www.amazon.com/LG-V10-Battery-Replacement-Portable/dp/B0191759CQ
I have the 2 battery/1 charger option, as well as a total of 5 oem batteries and 2 oem cradles (fiancee has V10 as well, LG had a sale). 1 of the batteries shit out one day randomly and wouldn't charge, but I contacted them on Amazon and they gladly sent me a replacement without hassle. Good customer support.