Magicshine's MJ-6112 battery pack is a 2600mAh 7.2V replacement rechargeable battery pack for your Magicshine MJ-900, 900S and 900B bike lights. The clever thing is, that it's also a portable power source that provides you with a USB outlet for recharging your phone or GPS device while out on the trail.

You can recharge the MJ-6112 using any typical USB AC wall charger and the included cable via the Micro USB input. If you just want to take the battery with you as a USB power supply, you can remove the battery cable from the battery and replace it with a silicone dust cover.

With a built-in battery monitor and check button, you'll always know how much power you have left and with an IXP4 rating (protected against splashing water from any angle) you don't have to be concerned about getting caught in the rain.

Power is provided by 2 x 18650 Lithium-Ion cells and the whole package is just 42.5x30x123mm in size and weighs 167g. The MJ-6112 has a soft, non-slip silicone foam strip on one side and is supplied with a Nylon and Velcro strap for you to secure the battery to your frame without damage or movement.

All Magicshine batteries have a wide operating and discharge range and 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.

The MJ-6112 is only compatible with MJ-900, MJ-900S and MJ-900B lights.