Our 65mm V3i batteries have a capacity of 180mAh and will last approximately 2 hours from a single charge on average use. Heavier use will cause the battery to last less than this, but light use will extend the life from one charge.

Our V3i batteries are expected to last around 6 weeks, and come with a 42-day warranty, so if yours isn't performing as it was or has failed completely within this time, please get in touch with our Customer Services team and we'll be happy to help!