Ultra Power chargers are known for their excellent durability and liability, thanks to the best internal components which ensure delivering a high-quality product. They have continued their winning formula with the UP120 AC DUO. The UP120 DUO charger features a built-in AC power supply to complement its DC input and comes with two 120W outputs which makes it a perfect charger for RC batteries. The UP120 Duo high-power balancing charger/discharger can provide up to 12A charge rates and handle up to 6S Lipo/LiFe/Li-Ion/LiHV or 15S NiCd/NiMH accurately. Not only does the UP120AC DUO offer a super high charge rate capability, it now features storage charging, cyclic charging / discharging, 10 charge parameter memory, battery internal resistance checking. Plus a USB charging and firmware upgrade outlet.