Any problem,please contact us first, we are here to help youFeatures:- 1 to 12 AA/AAA batteries at the same time- NiMH/ NiCd batteries in any combination-Battery charger with LCD display design-Intelligently shows the charging status of each chargeable battery-Independent charging channel for each battery-State of the art microcontroller for optimum charge each time-Full charge -dV detection-Safety timer control function-Reverse polarity detection-Short circuit detection and over temperature detection-Auto detection of non-rechargeable battery or defective battery-Refresh function is very helpful for NiCd batteries-Easy to use cycling feature, fully discharges and charges your cells to extend their overall lifespan and performanceSpecifications:-Input: AC 100V~240V 50HZ/60HZ-Output: 12V DC 2A-Rated Charging Current (Normal Charging): AA: 500mA; AAA: 250mA.-Discharging Current: 200~300mA-Applicable battery type: AA/AAA NiMH/NiCd rechargeable batteries-Product Size:230*105*30mmCharging Time:1-12 AAA 900-1100mAh 1-4hrs1-12 AA 2000-3000mAh 4-6hrsPackage Included:1 x Battery Charger(not include battery)1 x AC Wall Adapter1 x Manual