Features： 1、Automatic Conversion: This battery charger ah you can achieve 12V, 24V automatic and fast conversion, can use 12V and 24V at the same time. 2、Powerful Function: This battery charger has constant voltage, constant current, rectification, anti short circuit and fully automatic functions. 3、Multiple Protection: Battery charger with overload memory protection, short circuit memory protection, reverse protection function. 4、 Performance: This battery charger has wide voltage adaptation range, low power consumption, light weight, easy installation, long continuous service life, etc. 5、Main Uses: This charger is suitable for continuous long term replenishment of automatic generator sets and long time replenishment of general batteries, safe and reliable. Specification： Item Type: Generator Battery Charger Material: Aluminum alloy Supply Voltage: AC165-265V 50Hz Working Voltage: 80-275V Operating Frequency: 20-600Hz No Load Power Consumption: 3VA Output Voltage: DC22-28V (adjustable) Output Current: DC3.5-4.5A Overload Delay: 60 seconds-180 seconds Short Circuit Delay: 15 seconds Applicable to: 12, 24V battery charging Features: Overload memory protection, short-circuit memory protection, reverse protection function, wide voltage adaptation range, low power consumption, light weight, easy installation and long continuous service life, etc. It is suitable for automatic generator set continuous long term replenishment of electricity, as well as general battery replenishment for a long time, the charger has wide applicability, superior performance and reliability, with a simple structure, safe and reliable features. Package List： 1 x Generator Battery Charger 1 x Instruction