250 AMP Universal 12V-24V VSR Voltage Sensitive Relay Intelligent Dual Battery Isolator Kit for Car, Truck, RV, Emergency Battery Starter Switch Heavy Duty Charge Power Relay

How Battery Isolator Works: Off-roader/caravan vehicle usually need to be equipped with a second battery to meet the demand for electrical appliances in the car. However, the second battery cannot be directly connected in parallel with the original car battery. On the one hand, the stalling use of electricity is prone to cause the original car battery to lose power and it is difficult to start the vehicle. On the other hand, the line load is too heavy while the two batteries charging together. Therefore, a battery isolator is required. The battery isolator, also known as a split charge relay, uses your vehicle's power to charge an auxiliary battery and blocks your starting battery from getting drained by your equipment when the engine is turned off. The auxiliary battery isolator will only allow the extra battery to charge at whatever rate the alternator can manage. Specifications: Input Voltage: 12V/24V working voltage and load voltage Continuous Current: 250A normally open Peak Current: 250A normally open Automatic Connection Voltage: 13.5V-16V (12V working) / 27V-32V (24V working) Automatic Disconnection Voltage: 12.5V, immediately disconnect if below 12.5V Over Voltage: 16V/32V Weight: 694g Size: 15.2*14.7*4cm /6*5.8*1.6inch Note: Please do not put the product under the water situation. Packet: 1 x 250A Smart Dual Battery Isolator 1 x English User Manual

• High current 250 Amp Battery Isolator, Universal application 12V/24V, LCD display voltage of two batteries.
• Function: Dual battery isolator switch is a primary battery saver, which used to combine two batteries when an alternator is charging (engine running) and isolate them when not charging (engine off) so you can still start your vehicle.
• Dual battery isolation protection controller, which automatically detects and identifies the system voltage after the isolator is powered on.Automatically Connection Voltage (Delay 5 seconds) : 13.5V-16V(12V working voltage);27V-32V(24V working voltage)/ Automatically Disconnect Voltage (Delay 5 seconds) : 12.5V,disconnect immediately if it is below 12.5 V.
• Voltage Sensitive Relay designed with samll size, portable and compatible for a wide variety of vehicles as 12V/24V Jeep, Truck, SUV, RV, Caravan & Camping Applications. Don't need to drain the original battery on your vehicles trying out your new devices when off-roading, the dual battery isolator will be a nice solution to lengthen the life of the primary battery when your vehicle engine is off…
• With this dual battery isolator kit, no worries of engine cannot be started when original battery out of power, by pressing the emergency button to turn on the sub battery to start the engine. Easy to install, Just power wire in, power wire out.