Powerset 1.5 Volt AA, the charger for true 1.5 Volt Li-Ion batteries. The BC4 fast charger 1.5 Volt has been specifically designed for lithium-ion batteries (rechargeable with a regulated output voltage of 1.5 volts). Thanks to this advanced charging technology, this charger can also charge NiMH batteries in AA and AAA sizes in addition to 1.5V Li-Ion batteries. It features 4 charging slots for 1.5V Li-Ion and NiMH batteries in AA and AAA sizes. Power is supplied via the USB-C input. The required USB-C power adapter is not included to save costs and for environmental reasons, as many people already have one at home from their phones, etc. It can be connected to any 5V USB port (Xtar recommends 5V 2.0 to 2.1A). There are already plenty of 5V USB ports available in every household, often next to phone, smartphone USB chargers, PCs, power banks, laptops, and car USB adapters. The 4 LEDs indicate the respective charging progress. The Xtar BC4 is a handy and flexible charger for travel and home use. It also includes an LED emergency flashlight and a USB output, allowing the charger to be used as a power bank, as well as a wrist strap that makes it easier to remove the batteries, adding to the extensive features of the Xtar BC4. The following NiMH battery types can be charged with the Xtar BC4: NiMH 1.2V and also Li-Ion 1.5V AAA, AA.