Specifications: Input: 5V⎓2A / 9V⎓2A / 12V⎓1.5A. 18W (MAX). Output: 4.2V±1% / 1.48V±1%. Fast Charge Mode: 3,000mA*1 MAX / 1,500mA*2 MAX. Standard Mode: 2,000mA*1 MAX / 1,000mA*2 MAX. Compatible with: IMR/Li-ion: 10440, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 21700, 22500, 22650, 25500, 26500, 26650, 26700 Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D. Dimensions: 148mm x 65mm x 37mm (5.83' x 2.56' x 1.46'). Weight: 120.4g (4.25 oz) (Charging cable not included). Features: 1. NITECORE CI2 At-A-Glance. - Dual-Slot charger with USB-C port. - QC and PD input compatible. - Simultaneous battery charging. - 3000mA achieveable using single slot. - Automatic battery size detection. - Independent slots with automated charging. 2. Dual-Slot Universal Battery Charger Powerful and compact, the Nitecore CI2 is a dual-slot universal battery charger that charges Ni-Mh or Ni-cd or lithium batteries such as AAA, AA, 18650, 21700, 16340, 14500, and more. The Ci2 has a built-in intelligent system that automatically detects and charges up to 2 batteries. 3. Fast and Safe Charging Ci2 is able to reach a maximum charging current of 3000mA which triples the charging speed thanks to the upgrade to USB-C input.It also provides multiple charging safeguards to prevent reverse polarity, overcharge, and overheating. 4. Portable USB-C Charging The Ci2 charger features a USB-C port compatible with various power sources like power banks, solar panels and USB adapters for quick and efficient charging. Weighing only 4.25 ounces and measuring 5.83 inches in length, the lightweight design of the Ci2 allows you to carry this charger everywhere you go. Included in the Box Nitecore Ci2 Charger. USB-C Cable.