noeifevo 29 4v 4a lithium ladegerat fur 7s 25 9v li ion lipo batterien mit lcd anzeige kuhlventilator automatischer abschaltungBefore purchasing a charger, please ensure that the battery type, nominal voltage, charging voltage, and acceptable charging current (recommended charging current 0. 2C) match those described in the following product description. If you are unsure whether the charger is suitable for your battery, please contact our customer service for assistance. Specifications 1. Input Voltage: 220V Starting voltage: 29. 4V (the charge voltage for the battery) 3.