Battery disconnect relay - intelligent charge distribution for on-board and starter batteries

Would you like to charge more than one battery at the same time using a single power source? Then a battery isolator relay is exactly what you need. Thanks to its advanced technology, it ensures intelligent charge distribution and efficiently distributes the charging current to up to three batteries simultaneously without any loss of voltage. This is particularly useful, for example, for starter batteries and auxiliary batteries in vehicles or boats. At Offgridtec, you’ll find the perfect 12V or 24V battery isolator for your needs. Browse our online shop now and see for yourself!

Types of Battery Isolation Relays

A relay is an electrical switch with two positions. It is used, for example, in motorhomes to disconnect the onboard and starter batteries from each other when the vehicle is stationary and to connect them for charging. Depending on the design and functionality, you’ll find not only a range of useful battery accessories but also two different types of isolating relays in our online shop:

• simple
• automatic

Simple battery disconnect relays require a switching signal from the alternator (or another power source), while a fully automatic battery disconnect relay connects the batteries as soon as one reaches 13.7V and disconnects them as soon as one drops below 12.8V.

Buy top-quality battery disconnect switches online at Offgridtec

At Offgridtec, you’ll find both simple and automatic battery disconnect relays in top quality and at the best prices. Our experts select only high-quality products from reputable manufacturers for our online store and are happy to answer any questions you may have about our products.

We’re happy to advise and assist you in finding the right battery disconnect relay for your needs. You can reach us at 08721 91994-00 to take advantage of our expert advice for private customers and specialty retailers. We’d also love to hear from you via email at info@offgridtec.com!

FAQ

1. What does a battery isolator relay do? A battery isolator relay allows multiple batteries to be charged simultaneously from a single power source without the batteries being physically connected to each other. As soon as one of the batteries reaches 13.7V, the isolator relay switches on, ensuring both batteries are charged simultaneously.
2. Which terminal should be connected first when installing the isolator relay? The red cables are connected first to the positive terminal, followed by the black cables to the negative terminal of the battery.
3. How do I charge the starter battery in the RV? To charge the starter battery while driving, you can use an isolator relay or a charge booster. This connects both batteries in parallel and ensures that both batteries are charged via the alternator.