6*18650 LG LI-ion battery cells,7.4V 7.8Ah
Compatible with ALL MagicShine bike lights with Round Plug
The battery is more ergonomic and straps neatly to your frame using two nylon straps
The new waterproof battery compartment design and high quality and large area silicone non-slip mat
All Magicshine batteries include a circuit with over-charge, over-discharge and short circuit protection meaning you can be sure that your Magicshine battery is safe to use and charge.