Dual Battery Kits, Isolators & Relays

Total: 42 Products

Victron Autotransformer 120/240VAC-32A

Victron Autotransformer 120/240VAC-32A, 5 Year Warranty

$983 RRP: $1,134 Save: $151

Take an Extra $30 OFF
Victron Isolation Transformer 3600W 115/230V

Victron Isolation Transformer 3600W 115/230V, 5 Year Warranty

$1,221 RRP: $1,409 Save: $188

Take an Extra $40 OFF

There’s nothing quite like a flat battery to put a damper on your off grid adventure. That’s where a dual battery isolator, kit or relay comes into play. These units are designed to separate your starter battery and auxiliary battery to prevent your starter battery from being drained when your vehicle engine is off.

Should I Buy A Dual Battery Isolator Or A Combiner?

Choosing between a dual battery isolator and a combiner depends on the application. An isolator is used for allowing one charge sourceto charge multiple batteries at once without connecting the batteries together. A combiner on the other is ideal for powering a critical load from two batteries in the chance one fails.

Dual Battery Kits:

Looking for an all in one solution? Look at our Dual Battery Kits by Enerdrive, Redarc and Baintech. These kits include an isolator or combiner and all the cables, lugs and ties for a DIY installation!