Ensure that you never miss out on those precious moments with the Onkliq MH23 Charger compatible with Nikon el9 and el9a camera battery. The Onkliq MH-23 Battery Charger is designed to take full advantage of high capacity rechargeable batteries and has been specially designed to charge the Onkliq EN-EL9/EL9A Battery. The only thing you need to do is to plug in the converter and your batteries will immediately start charging. It usually takes about three hours to charge Li-ion batteries the first time. Compatible with D700, D300, D100, D3000, D5000, D5100, D80, D60, D70s, D70, D50, D40X, D40, D4, D4X, D6, D5, D3 camera models After that, it can take as little as an hour. The best way to charge batteries, is the night before a shoot.