Tenergy TN141 Smart 2-Bay 9V NiMH Battery Charger

COMPACT DESIGN & WORLDWIDE CHARGING – Lightweight and mini, it has a fold-able power outlet for easier storage. Take it anywhere with worldwide voltage 100V – 240 AC input.
EASY-TO-USE – Simply plug and charge 9V batteries with easy to read LED light charging status indicators.
INDEPENDENT CHANNELS – Charge 1 or 2 batteries without the need to charge in pairs.
MICRO-PROCESSOR CONTROLLED – Automatically controls the charging process and initiates trickle charging to maintain the battery life at an optimal level.
BETTER SAFETY DESIGN – Built-in circuit and polarity protection along with a 5 hour safety timer to prevent overcharging.