General description An isolator is used to combine two batteries when an alternator is charging (engine running) and isolate them when they are not charging (engine off) so you can still start your vehicle. Technical specifications Voltage: 24V Color: silver Material: metal Size: 85.3 x 67.4 mm Other information Package Contents: 1 x Starter Relay Note: Light shooting and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.