Often asked: How To Jumpstart My Motorhome?

Can you jump start an RV?

If your RV doesn’t start because of a dead battery, you may be able to jumpstart it using your car. However, if you drive a large truck or SUV, you may jumpstart your RV like you would jumpstart a car. If you’re unsure whether or not your engine is large enough, don’t attempt to jumpstart your RV with your car.

Can you jump start a motorhome from a leisure battery?

YES you can, and very easily, is the answer. BUT be sure to disconnect the leisure battery from the hab side before attaching jump leads and starting.

Why do RV batteries go dead?

Your RV has a converter with a built-in battery charger. This charge rate is too high for fully charged batteries and the electrolyte is eventually boiled off as the battery continues to charge, resulting in an early death for the battery. The only way to prevent this is through routine battery maintenance.

Does a RV generator have its own battery?

Answer: Your generator starter is powered by your coach batteries. Make sure your Cut-Off switch is in the right position to allow power to the interior equipment, and make sure the batteries are fully charged. Also, make sure the batteries have water in them.

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Can I use a starter battery as a leisure battery?

Yes you can use a car battery, but it won’t have the same long lasting capacity as a leisure battery and as you yourself have said you use a different charger. Although this works even sealed batteries produce gas which needs to be vented and a stronger charger produces more gas and in a caravan may be a danger.

Can I use a leisure battery as a starter?

Yes you can, but some provisos. 1. Do not try to start Engine with the 2 Batteries connected.

Can you charge a car battery from a leisure battery?

You can only do this by drawing power directly from the leisure battery during cranking and for this you must have suitable relay and cabling. The battery is no problem as most modern “leisure batteries” are not that different to a conventional battery in terms of CCA.

How do you jumpstart a diesel motorhome?

Jump a diesel just like you would jump any other car. Positive to positive, negative to negative. Wait one minute and crank. Most modern RVs have a shunt switch that joins the coach batteries to the engine batteries to start it up without jumper cables.

How do you jumpstart a diesel van?


  1. Connect one end of the red (positive) jump lead to the positive (+) terminal on the dead battery.
  2. Connect the other end of the red jump lead to the positive terminal on the support battery.
  3. Connect one end of the black (negative) jump lead to the negative (-) terminal on the support battery.

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