Victron Energy BP-65 BatteryProtect 65 amps 6-35 volts Blue. These Battery & Cell Phone Chargers have a programmed setting that disengages the battery if the voltage drops below a preset level. However this only applies to 12V systems. For 24V systems you can set the Battery Protect to overcharge in which case the battery will be disconnected. However this only happens when the battery is fully charged. With other words the BatteryProtect simply monitors the condition of the battery and reacts accordingly. This 65A model can be used on 12V systems. For all other types of batteries please use the 24V model. Specifications for Victron Energy BP-65 BatteryProtect - 65 AMP: Manufacturer: Victron Energy Color: Blue Voltage: 24 volts Amperage: 65 amps Features of Victron Energy BP-65 BatteryProtect - 65 AMP 12/24V auto ranging: The BatteryProtect automatically detects system voltage Programming Made Easy: The BatteryProtect can be set to engage / disengage at several different voltages. The seven segment display will indicate which setting has been chosen. A Special Setting for Li-ion Batteries: In this mode the BatteryProtect can be controlled by the VE.Bus BMS. Note: the BatteryProtect can also be used as a charge interrupter in between a battery charger and a Li-ion battery. See connection diagram in the manual. Ultra Low Current Consumption: This is important in case of Li-ion batteries especially after low voltage shutdown. Please see our Li-ion battery datasheet and the VE.Bus BMS manual for more information. Over Voltage Protection: To prevent damage to sensitive loads due to over voltage the load is disconnected whenever the DC voltage exceeds 16V respectively 32V. Ignition Proof: No relays but MOSFET switches and therefore no sparks. Delayed Alarm Output: The alarm output is activated if the battery voltage drops below the preset disconnect level during more than 12 seconds. Starting the engine will therefore not activate the alarm. The alarm output is a short circuit proof open collector output to the negative (minus) rail max. current 50 mA. The alarm output is typically used to activate a buzzer LED or relay. Delayed load disconnect and delayed reconnect The load will be disconnected 90 seconds after the alarm has been activated. If the battery voltage increases again to the connect threshold within this time period (after the engine has been started for example) the load will not be disconnected. The load will be reconnected 30 seconds after the battery voltage has increased to more than the preset reconnect voltage. Package Contents: Victron Energy BP-65 BatteryProtect - 65 AMP Victron Energy BPR000065400: BP-65 BatteryProtect 65 amps 6-35 volts Blue