The REVEAL Lithium Multi-Charger lets you charge from one to four REVEAL Lithium Cartridges at once vastly speeding the recharge process and getting your cameras back up and running faster. This charger uses an included 12V power supply and lighted battery charge indicators to let you know when the cartridges are topped up.Why wait? Charge all your lithium cartridges at once and get back in the hunt sooner and with less hassle with the REVEAL Multi-Charger.