Skip the auto shop - Our mechanics make house calls

Q: Advice on putting a larger battery in the car

asked by on

Can I put a larger battery in my car? For example, I have a 15-amp battery--can I put a 70-amp battery? Would this affect anything, like computers and disconnecting anything, burn anything?

A: As long as you disconnect it and reconnect ...

As long as you disconnect it and reconnect it correctly, it won't really hurt anything. You can put a bigger one in, it just has more cranking power. That's all. Alternators can recharge it. A lot of guys do it. They only use small batteries because they are cheaper.

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・Save up to 30%

Get a quote

What others are asking

Q: Alternator problems. Lights and horn don't work.

Your car is showing all the classic signs of a bad battery. I would recommend having a mechanic inspect the battery. They will start with the battery and have it load tested. When batteries get old they may not take...

Q: Car won't start, latching noise

If when turning the key you hear a loud click or latching noise, that may be the starter gear kicking out to contact the engine flywheel in an attempt to start. Test the battery while trying to start the vehicle....

Q: Car battery overheating

This is a safety hazard and should be addressed by a certified mechanic. Battery's hold down brackets often become loose and can get caught between the battery's posts causing a short. This can mean a wiring problem that can involve...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.