Split charge relays are a great way to charge your leisure battery from the power of your engine, but they have their limitations and may not be the best choice for your campervan or boat’s electrical system. Here’s all you need to know about how they work, how to install one and what other options are available. How does a split charge relay work?

2024年12月5日 · 2. Split Charge Relay: This system uses a heavy duty version of a simple 'make and break' relay, the coil of which is energised by a signal that is only +12V when the engine is running (usually the charge signal wire from the alternator).

2021年3月15日 · A voltage-sensitive relay, otherwise known as a V.S.R, is the most common split charge device used in a campervan split charge system. A V.S.R. provides the user with a simple, reliable way of splitting power from the starter battery to the auxiliary battery.

In this chapter, we'll learn about the different devices you can use for split charging, including manual switches, split charge relays, voltage sensitive relays, split charge diodes, and smart battery-to-battery chargers.

2019年9月15日 · Two general options for "split-charging" (using the alternator to charge your Lesiure Battery when driving) - a Relay system (such as a VSR) that just connects the Lesiure and Starter Battery together; or an intelligent Battery to Battery (B2B) Charger, similar to the Smart Mains Chargers but using DC-DC instead of AC-DC.

2024年10月29日 · A VSR is often called a smart relay or an intelligent split charge relay and is the most popular split charging method in campervans and motorhomes. Monitoring both the leisure battery and the starter battery voltage, a VSR is indeed smarter than a standard split charge relay.

2023年12月12日 · The difference between a DC-to-DC charger and a split charge relay lies in their functionality, efficiency, and how they charge batteries in vehicles, particularly in dual battery systems often used in RVs, boats, and off-grid setups.

2024年3月14日 · It can charge two batteries simultaneously and isolate them from each other when the vehicle is turned off. Easy to Install: This split charge relay kit comes with complete accessories, allowing you to start installing directly without purchasing additional components.

There are 3 main types of split charge relays which you will see in most campervan conversions, a manual switch, an automatic switch and a voltage sensing relay. As the name suggests a manual switching relay is simply a switch you flick on to connect the batteries and switch off to disconnect them.

VEVOR Split Charge Relay Kit, 6mtr 12V, Automatic Dual Battery Isolator Kit with 140AMP Voltage Sense Relay VSR, Compatible with RV Marine Car Vehicle Truck Caravan Camper Yacht ATV UTV Boats Workshop