Skip the auto shop - Our mechanics make house calls

Q: What’s the proper way to disconnect the battery

asked by on

What’s the proper way to disconnect the battery

A: In normal operation, your battery should re...

In normal operation, your battery should recharge while the engine is running (the alternator should supply all the power needed). However, if the car has set for some time, it’s possible that the battery may be low. To charge it, you’ll first need to disconnect it. Here’s what you need to do:

  1. Disconnect the battery hold down (the metal bracket on top of the battery).

  2. Disconnect the negative battery cable (black).

  3. Disconnect the positive battery cable.

  4. Remove the battery.

Tips

  • Always disconnect the negative cable first to avoid potential discharge.

  • Always reconnect the negative cable last to avoid potential discharge.

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: Sunroof was open during rain and car won't start

If the ignition switch sustained damage from the water, it could cause the vehicle to start. Unfortunately, with this amount of water in the vehicle, it can short out wiring and cause extensive corrosion in the various systems. The vehicle...

Q: Engine cranks but does not start

Hello, Things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition module are all components that help to create spark and control ignition timing which may cause the motor to not produce spark or the correct...

Q: Sputtering

Hi there. It sounds like you have a restriction in the exhaust. When this occurs the exhaust cannot flow which keeps the turbo from spinning as it should. It can also occur if the manifold pressure sensor is not reading...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...