EA662 – 250 AMP Car Battery Isolator

Main Features

250AMP battery isolator is a primary battery saver, which is used to combine two batteries when an alternator is charging (engine running) and isolates them when not charging (engine off) so you can still start your vehicle.
High current 250 Amp, Universal application 12V/24V, LCD display voltage of two batteries.
Dual battery isolation protection controller, which automatically detects and identifies the system voltage after the isolator is powered on.

Typical Application

This smart battery protector is portable and fits a wide variety of vehicles such as 12V/24V Jeep, Truck, SUV, RV, Caravan & Camping Applications. Don’t need to drain the original battery on your vehicle 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.

EA662 – 250 AMP Car Battery Isolator

Vast of automatic machines are lunched to ensure stable quality as well as cost performance products.

Smart Battery Isolator Instructions:

1: First check whether the main battery voltage is at 12.5V, start the engine and start the isolator after detecting that the voltage is higher than 13.5V for 5 seconds. The main and auxiliary voltmeters display normally.

2: When the main and auxiliary voltmeters show that the voltage is below 13V for 10 minutes, disconnect the isolator immediately when the voltage is below 12.5V. The voltmeter is flashing after disconnection.

3: The disconnection voltage of the isolator is 13.3V, and it will be automatically disconnected when the main battery voltage is lower than 12.4V after emergency borrowing.

4: When the voltage is between 13.5V and 14.5V, keep charging, and the voltage will be disconnected immediately when the voltage reaches 16V.

5: When the engine detects that the voltage is lower than 13V after the engine is turned off, the isolator will be disconnected for 10 seconds.


6: When the main battery lacks power and the engine cannot be started, press the emergency button to switch on the auxiliary battery. After starting the engine, the emergency button was closed immediately, and the isolator resumed its normal working condition.

External Dimensions:
662 diagram

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