Skip the auto shop - Our mechanics make house calls

Q: I have an RV with 2 batteries 12V sequenced together.

asked by on

The batteries are sequenced together with one being auxiliary power when a button is pressed from the driver's seat. Can I have a battery charger on one battery and jumper cables connected to the other while I start the RV?

Hi, thanks for writing in. You would not recommend trying to jump start the car using a battery charger unless the charger has a boost function. A battery charger should be used to charge the batteries first and then disconnect it while you crank the RV.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car won't start - 2004 Ford Focus

Hi and thanks for contacting YourMechanic. Check the battery cables for more corrosion and clean them up again. You may need to put backing soda and water mixture on the terminals to clean the corrosion completely off. Make sure that...

Q: Driver's side mirror moves straight up on its own

Your mirror switch should be disconnected after you adjust your mirrors to try and isolate a shorted mirror switch from a defective body module. If you have spilled any fluids on the mirror switch, it may be shorted inside and...

Q: Car won't start & lights are all off

Greetings! The problem indeed likely lies within the battery itself. Some batteries get to a point when it will lose its ability to hold or receive an electrical charge. When this happens it is nearly impossible to revive a battery....

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.