LED Lenser Lithium-Ion Rechargeable Battery for MT10, MH10, M7R, H8R, F1R, P7R High quality Li-ion battery from LED Lenser. This LED Lenser ICR18650 Li-ion 3.7 V, 3400 mAh battery cell is designed as a perfect replacement battery for your MT10, MH10, M7R, H8R, F1R or P7R rechargeable torch.