Battery

Swapping a split relay for a DC to DC charger

Swapping a split relay for a DC to DC charger
  • 1272
  • Christopher Thornton
  1. How do you wire a split charge relay?
  2. Does a split charger work both ways?
  3. What are the benefits of a DC to DC charger?
  4. Why do I need a split charge relay?
  5. Does electric hook up charge leisure battery?
  6. How do you test a split charger?
  7. Can I use a split charger with a solar panel?
  8. How long does a split charge relay take to charge?
  9. What amp DC to DC charger do I need?
  10. How many amps does a DC to DC charger draw?
  11. What is the best DC to DC charger?

How do you wire a split charge relay?

To fit a split charge relay, first connect a 16sqmm red cable from the positive terminals of each battery bank to the large studs on the relay labelled '87' and '30'. Ensure this cable is thick enough to carry the maximum charging current of your alternator.

Does a split charger work both ways?

Battery Isolator / Charge Splitter

So current can flow from the alternator (or other charging source, e.g. battery charger) to both batteries but cannot flow between batteries, thereby isolating the starter battery from the leisure battery and preventing it being flattened.

What are the benefits of a DC to DC charger?

DC-DC chargers increase the likelihood of your batteries arriving in camp at close to a full charge, minimises damage to your house battery system from over discharging and, in my opinion, should be fitted as mandatory or at least offered as an option on every camper and caravan sold in Australia.

Why do I need a split charge relay?

The main reason to install a split charge Relay kit in your vehicle, is to charge a second or leisure battery while you are driving. ... This will then ensure the main battery doesn't get drained of power when you are stopped, so you will always have enough power in your main battery to start your vehicle.

Does electric hook up charge leisure battery?

A battery is simply an energy store but, to store energy, you first have to put it into the battery. Most motorhomes offer two methods for charging the leisure battery: via the on-board mains charger when on hook-up and from the engine-driven alternator when on the road.

How do you test a split charger?

Disconnect the leisure battery , make sure the terminals are safely isolated from each other and the van, start the engine, wait a minute and check the voltage at the ends of the leisure battery leads, if you get 13. - 14 volts there the relay is working ok, switch the engine off and this voltage should disappear.

Can I use a split charger with a solar panel?

New member. Most controllers should be fine to leave connected. Just remember that controllers will end to consider the charging voltage of an alternator as being a full battery and so the charging via solar panel. Basically when charging from alternator most controllers won't supply anything from the solar panels.

How long does a split charge relay take to charge?

We need 30% of 200ah (60A) to fully recharge the battery bank. The batteries can accept 30A each per hour so 60A in total. The alternator provides 70A so the battery bank will take a little less than an hour to fully recharge.

What amp DC to DC charger do I need?

As a general rule, battery bank sizes of 75-200AH require a 25-amp dual battery charger and then for higher capacity needs, a 40-amp dual battery charger is recommended.

How many amps does a DC to DC charger draw?

maximum of about 35-37 amps at 14.0 volts (about 520 or so watts). Prior to dc-dc charging any voltage drop between that alternator voltage and the battery limited the charging current accordingly.

What is the best DC to DC charger?

Available in 12V and 24V, the ePOWER range from Enerdrive are by far the most popular DC to DC battery chargers on the market.

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