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  • You need to get your automobile battery examined to verify it must be changed.
  • Changing most automobile batteries is a reasonably easy course of that may be achieved with a number of instruments.
  • Used automobile batteries are thought of hazardous waste and have to be disposed of correctly.

Altering a automobile battery at house is a straightforward method to save cash on automobile upkeep.

You should buy your new battery anyplace, together with on-line, and set up it your self as an alternative of paying the excessive costs at a storage or service heart. Automobile batteries usually value between $50 and $200, relying in your car. Upon getting the battery, the method often takes half-hour to finish.

That can assist you get the job achieved safely, we spoke to Richard Jano, Sr., proprietor of Meanke Auto Restore in Cathedral Metropolis, CA, about one of the simplest ways to interchange a automobile battery.

The right way to Make Certain a Automobile Battery Wants Alternative

Battery and engine warning light on car dashboard

Verify for indicators that your battery must be changed, reminiscent of dim headlights or dashboard warnings.

matsou/Getty Photographs


When your automobile will not begin, there are a selection {of electrical} points that could possibly be the issue. Jumpstarting a automobile can get you adequate cost to get you the place you might want to go, however it could additionally resolve energy issues draining your battery, whether or not it is previous or new.

You will want to check the battery earlier than changing it. There are different causes of a no-start or lifeless battery, together with an alternator, brief circuit, or different electrical downside. If these should not addressed, the brand new battery will run out and the automobile won’t begin once more.

Normally, automobile batteries often final about 3 to 4 years. Components reminiscent of warmth, heavy utilization, and unsafe battery hold-down can have an effect on battery life.

Signs of a foul battery embody:

  • There may be zero suggestions whenever you flip the important thing. When nothing occurs and there’s no warning mild on the dashboard whenever you flip the important thing, it means the automobile has a lifeless battery.
  • Starter cranks slower than regular. Does the starter motor crank slowly, wrestle or hesitate whenever you flip the important thing? These are indicators that the battery must be checked.
  • Dim headlights. Dim headlights when the automobile is off generally is a signal of a foul battery. Dim headlights when the automobile is operating generally is a signal of a foul alternator.
  • The battery or charging system warning mild seems. Some automobiles have warning lights to let you already know if the battery is lifeless or about to die.
  • The battery has cracks or leaks. In case your battery has any cracks, leaks or harm, it must be changed instantly.

A reasonable digital machine known as a multimeter can be utilized to measure the voltage of the battery. This may also help decide if it wants alternative.

For an expert opinion, Know suggests taking your automobile (or battery) to a mechanic or most auto elements shops. They will simply check the battery and let you know if it must be changed, even whether it is nonetheless beginning your automobile. If you happen to take your automobile, they will simply check the alternator and charging system to verify the battery must be changed.

Step 1: Discover the Automobile Battery

Put the automobile in park, lock it and take away the important thing. Earlier than finding the battery, be certain that the engine has cooled down. Most automobile batteries are mounted on a plastic or steel tray, underneath the hood. Some automobiles have batteries within the trunk.

Step 2: Find and Disconnect the Battery Terminals

Batteries have two terminals the place the cables are linked. They are often coated with a plastic cowl. One will probably be black (unfavorable) and one crimson (optimistic). Terminals may additionally be marked with + for optimistic and – for unfavorable.

At all times disconnect the unfavorable cable first. Sporting work gloves and eye safety and utilizing a wrench, loosen the bolt that tightens the unfavorable connector of the battery terminal. As soon as loosened, gently transfer the cable connector backwards and forwards as you carry it as much as take away it from the battery terminal.

Subsequent, take away the optimistic cable. Utilizing the wrench, loosen the bolt that tightens the cable to the battery terminal. As soon as loosened, gently slide it backwards and forwards as you carry it as much as take away the cable connector.

Step 3: Take away the Outdated Battery

Automobile batteries are secured with a steel bar over them or a steel clamp on the base. Loosen the bolt that secures the holding bar or clamp so that you could take away it and take the battery out of the automobile. There may be caustic liquid contained in the batteries, so make sure you all the time hold it upright.

Step 4: Clear the Battery Tray and Terminal Connector

Terminal connectors put on out over time, and now is a good alternative to offer them an intensive cleansing.

Clear the connectors and battery tray utilizing a battery cleaner and wire brush. Alternatively, you need to use a baking soda paste by mixing two teaspoons of baking soda with one teaspoon of water. Use metal wool to scrub the within of the connectors after which dry all the pieces completely.

Examine cables and connectors to verify they aren’t broken or frayed.

Step 5: Set up and Safe the New Battery

Double examine to verify the place of the brand new battery matches the crimson and black terminals. Decrease the brand new battery into the automobile and onto the mounting shelf. Re-attach the clamp or hold-down bar and tighten the bolt to safe it.

Earlier than reconnecting the terminals, think about using protecting felt washers or some battery anti-corrosive safety gel on each terminals.

At all times join the optimistic cable to the brand new battery first. Ensure that the connector is pushed all the best way all the way down to the terminal. Tighten the bolt. Repeat the identical steps for the unfavorable terminal as for the unfavorable connector.

Step 6: Shut the Hood and Begin the Automobile

New automobile batteries cost usually and are able to go instantly.

Recycling Used Automobile Batteries

car battery person

Outdated automobile batteries can’t be thrown within the unusual dustbin.

Robin Gentry / EyeEm / Getty Photographs


If you happen to exchange automobile batteries your self, do not forget that they can’t be thrown within the unusual trash. Know that the previous battery is often returned to the vendor of the brand new battery, as a refundable core payment is typically charged.

In most states, any retailer promoting new batteries is required to simply accept used batteries for recycling. Verify along with your native auto elements retailer. Put the previous battery in a number of trash cans and make sure you all the time hold it upright. Don’t hold it, the battery releases poisonous gases and should leak. Get rid of it as quickly as attainable.

Insider Takeaway

Changing your automobile battery your self is a straightforward method to save cash on automobile upkeep. Make sure to correctly check the battery to verify it must be changed. Take away the unfavorable connector first, then take away the optimistic connector from the previous battery. Set up the brand new battery then first join the optimistic connector and eventually the unfavorable connector final. Get rid of previous batteries correctly at an auto elements retailer or recycling heart.

Nevertheless, a free battery or free electrical connections will be very harmful. If you happen to’re not comfy doing any a part of this course of, most auto elements shops will set up the battery you purchased there at no cost. Additionally sells AAA batteries and can set up them and take the previous one at no cost.

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