Battery Isolators and Charging Current Distributors

Our Charging current distributors allow you to charge several batteries at once. The voltage drop of electronic charge distributors is rather low. In addition, some of these devices offer various setting options, e.g. for under and overvoltage protection or the priority charging of the starter battery. Learn more about MASTERVOLT Battery Isolators / Charging Distributors...

Battery Isolators & Charging Distributors

- Isolate your on-board charging system -

Why isolate the charging system on boats?

Many on-board installations comprise two or more battery groups, such as starter battery, supply battery and/or batteries for bow thrusters and navigation equipment. In such installations, it is important that these individual battery groups do not interfere with each other and are appropriately isolated. This, of course, means that the charging system must also be isolated. However, this makes the charging process more complicated, as either the alternator, the generator or the charger has to recharge the batteries one by one.

Customer ratings & reviews

All reviews (207.781)

Antoine A. on 19.07.2026

I have purchased a vitrifrigo bd 50 with O evaporator working perfectly and now I am enjoying having ice on my cocktail The consumption is around 5 Ampsh and I am running my fridge 24 h just on my 300 watts flexible solar panels Very happy with the upgrade.

Mikael S. on 18.07.2026

Fast delivery

Hakon L. on 17.07.2026

I have always been satiesfied with SVBs service, both when ordering on the net and when visiting SVB in Bremen.