HRB have normal and Graphene lipo battery . (We also provide OEM-DIY sevice )
If you have interest in ,Please feel free to contact me .
This is Amey from HRB team .
Email :
amy@hrbbattery.com
whatsapp : +8615071037599
this is our alibaba's store :
https://www.alibaba.com/product-deta...2e9771d264A0Do