XTAR MC4 charger is another classic charger of MC series, still portable and cost-effective. Charge four batteries at the same time and automatically distribute the most effective charging current for each slot. With Micro USB charging port, you can charge everywhere conveniently. Meanwhile, LED indicators let you know the charging status anytime. - See more at: http://www.xtar.cc/products_detail/productId%3D175.html#sthash.a50VB89Z.dpuf