The IDX 2 Channel Sequential Quick Charger with AC Adapter - 36W provides sequential charging for lithium-ion and NiCad batteries, automatically switching to the second battery after fully charging the first. It delivers up to 2.7A of quick-charge current without the noise of a typical charger thanks to a fanless design. It also features a 4-pin XLR power output that offers up to 36W of DC power when the charger is connected to a wall outlet and your batteries are removed. The DC output is disabled when a battery is charging. This portable desktop charger is designed with reliable internal safety features that protect both the battery and charger from damage should faulty or misused batteries be placed on the charger. It will automatically stop charging if any attached battery reaches an overvoltage condition.