Jeep BB94R750AA Battery-Storage

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To check the battery state of charge, inspect the indicator eye on the top of the battery, where a green color indicates 75 to 100 percent charge, black signifies 0 to 75 percent charge, and a clear or bright appearance indicates low electrolyte level. Maintenance-free factory-installed batteries cannot have water added, but if a low-maintenance battery with removable cell caps is used, add water to the correct level. Overcharging may cause low-electrolyte conditions, so after recharging, check the alternator charging voltage and replace it if necessary. Perform an open-voltage circuit test using a voltmeter to ensure the battery charge is correct. For a battery load test, use a battery load tester to evaluate its ability to handle heavy amperage draw. Disconnect the battery cables starting with the negative terminal, remove the battery hold-down bolt and clamp, then lift out the battery for replacement. Inspect the battery tray for corrosion and clean it as needed. For battery tray removal, disconnect wiring harness clips, remove the fuse and relay box, ABS controller, left front wheel, and wheelhouse splash shield if necessary, and then unbolt and remove the battery tray. The right-side battery tray removal process is similar, with additional steps for air filter housing and relay bracket removal.

To disconnect the battery, loosen the cable end nut of the remote negative terminal, disconnect the cable from the remote ground terminal, attach the plastic insulator portion of the cable to the stud, and reinstall the nut.

The average trickle charger time is 12 to 16 hours.

Slow-rate charging with a one or two-amp battery charger is recommended for restoring a deeply discharged battery or maintaining its charge, especially during the winter. High-amperage chargers that exceed 1/10th of the battery's amp/hour rating should be avoided except in emergencies.

Before disconnecting the battery, remove the key from the ignition and keep it with you to prevent accidental locking of the power door locks.

Proper battery maintenance is crucial to ensure reliable starts in your vehicle.

When servicing the battery, precautions should be taken such as turning off the engine and all accessories and disconnecting the cable from the negative terminal.

Loosen the left-front wheel lug nuts, then raise the front of the vehicle and support it on jackstands. Remove the left-front wheel and inner fender splash shield. Also remove the engine under cover. Remove the fuse box assembly mounting bolts and position it to the side. Remove the Powertrain Control Module (PCM) mounting bolts, then position it to the side. If necessary, also remove the PCM mount for better access. Detach any wiring harness clips from the battery tray, then remove the battery tray mounting bolts - accessed by working from the engine compartment, fenderwell, and from below the vehicle. Remove the battery tray, rotating it as necessary. Installation is the reverse of removal.

Disconnect the negative cable first and hook it up last to avoid accidentally shorting the battery.

Proper battery maintenance is crucial to ensure reliable starts in your vehicle.

Replace the battery.

Look at the indicator eye on top of the battery. A green eye indicates 75 to 100 percent charge, a black eye indicates 0 to 75 percent charge, and a clear eye indicates low electrolyte level.

The battery tray can be cleaned by inspecting it for corrosion deposits and using a baking soda/water solution to neutralize any deposits. If the metal around the tray is corroded, it should be cleaned and sprayed with rust-inhibiting paint. If corrosion has leaked down past the battery tray, the tray should be removed for further cleaning.

Ensure that you purchase one that is identical in dimensions, amperage rating, and cold cranking rating.

Add water to the correct level.

Disconnect the battery cables starting with the negative terminal, remove the battery hold-down bolt and clamp, then lift out the battery for replacement.

Disconnect wiring harness clips, remove the fuse and relay box, ABS controller, left front wheel, and wheelhouse splash shield if necessary, and then unbolt and remove the battery tray. For the right-side battery tray removal process, additional steps for air filter housing and relay bracket removal are necessary.

Precautions when servicing the battery include turning off the engine and all accessories, disconnecting the cable from the negative terminal, and avoiding creating sparks or lighting matches near the battery.

Ensure that the battery tray and hold-down clamp fasteners are in good condition.

Corrosion on the hold-down components, battery case, and surrounding areas can be removed with a solution of water and baking soda, followed by rinsing with plain water. Any metal parts damaged by corrosion should be covered with a zinc-based primer and painted.

The battery tray should be checked for its condition, and the hold-down clamp fasteners should be checked for tightness.

If corrosion is evident, the battery should be removed for cleaning by loosening the cable clamp bolts and disconnecting the hold-down clamp bolt and nut. The cable clamps should be thoroughly cleaned with a battery brush or terminal cleaner and a solution of warm water and baking soda. The terminals and top of the battery case should be washed with the same solution, being careful not to let it get into the battery. The battery posts should be cleaned with a terminal cleaner if extensively corroded. All cleaned areas should be thoroughly washed with plain water.

Gain access to the battery, unplug the electrical connector from the Intelligent Battery Sensor (IBS) if equipped, and disconnect the cable from the negative terminal of the main battery and the auxiliary battery. Disconnect the cable from the positive terminal of the auxiliary battery and the vent hose from both batteries. Remove the nut from the auxiliary battery hold-down strap and lift the battery from the tray. Installation is the reverse of removal.

Inspect the indicator eye on the top of the battery, where a green color indicates 75 to 100 percent charge, black signifies 0 to 75 percent charge, and a clear or bright appearance indicates low electrolyte level.

Corrosion on the hold-down components, battery case, and surrounding areas can be removed with a solution of water and baking soda, followed by rinsing with plain water. Any metal parts damaged by corrosion should be covered with a zinc-based primer and painted.

Use a battery load tester.

Corrosion on the hold-down components, battery case, and surrounding areas can be removed with a solution of water and baking soda, followed by rinsing with plain water. Any metal parts damaged by corrosion should be covered with a zinc-based primer and painted.