Skip the auto shop - Our mechanics make house calls

Q: Can I connect two batteries to my alternator without overworking it? Chevy Tahoe, 1997

asked by on

Hooking up system in Tahoe and don't want to ruin the battery so I wanted to hook up second battery
My car has an automatic transmission.

A: Yes, your alternator is more than capable o...

Yes, your alternator is more than capable of charging two batteries with proper isolation of both. What will the batteries be used for? Do you want them both being operated and/or charged at the same time? The answers to these questions will help determine whether or not you need them isolated or charged and used simultaneously. I would suggest having a professional from YourMechanic come to your home to properly install this dual battery setup.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: battery replacement

This sounds like what they are saying is that the problem may not be the battery but rather the alternator. When the alternator is charging the battery at a rate that is higher than normal it can damage the battery....

Q: Fixing corroded battery clamps on a '95 Mustang GT

They will generally be able to get you the whole cable assembly. You can always cut the corroded part. They do make short cables. You put that on the battery and cut off the corroded part and you splice the...

Q: My 1993 GMC Sierra will barely go past 40mph

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...