Mercury BXT-65-650 Battery

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When maintaining a battery, prioritize safety. Use necessary equipment like a face shield, safety goggles, rubber gloves, battery terminal cleaner, felt washers, baking soda, and petroleum jelly. Turn off the engine and accessories, disconnect negative terminal cables, and avoid sparks, smoking, or open flames near the battery. Be cautious of corrosive sulfuric acid and wear safety glasses. Check for damage, corrosion, loose connections, cracks, and hold-down clamps. Clean with warm water and baking soda, wearing goggles and gloves. Ensure tray and clamp fasteners are good. Reinstall the battery properly if removed. Jump-starting or disconnecting cables may require PCM relearning. Remove corrosion with baking soda solution. Cover damaged metal parts with zinc-based primer and paint. Use a slow-rate charger for safe and efficient charging. Higher amperage should not exceed 1/10th of battery's amp/hour rating. Rapid boost charges are for emergencies and take 12-16 hours.

To disconnect the battery, first remove both cables, starting with the ground cable to avoid shorting. Remember, the vehicle may need to be driven 10 miles after reconnection for smooth operation. Next, remove the bolt and wedge to lift out the heavy battery, using lifting straps if needed. If necessary, remove the battery tray bolts for component access. Reinstallation is the reverse of removal.

A preventive maintenance program is crucial for reliable vehicle starts. Before battery maintenance, ensure you have the right safety equipment. Always turn off the engine and disconnect the negative terminal before servicing. The battery produces flammable hydrogen gas and corrosive sulfuric acid. If there's corrosion, remove the battery for cleaning. Clean cable clamps with a battery brush and a warm water-baking soda solution. Check the battery tray and hold-down clamp bolts. Remove corrosion with a water-baking soda solution. Damaged metal parts should be covered with a zinc-based primer and painted. For a discharged battery, slow-rate charging is best, using a one or two-amp charger. Typically, a trickle charger will charge a battery in 12 to 16 hours.

To disconnect the battery, start by disconnecting both cables from the battery terminals. Remember to always disconnect the negative cable first and hook it up last to avoid shorting the battery. Next, locate the battery hold-down clamp on top of the battery and remove the bolt and nut to detach the clamp. Once the clamp is removed, lift out the battery using special straps that attach to the battery posts for easier handling. Installation is the reverse of removal.

To begin work on the vehicle, turn off the engine and all accessories and remove the cable from the negative terminal. Sealed batteries do not require a check of the electrolyte or adding water. In batteries that need maintenance, ensure there is enough distilled water in each cell by inspecting its level of electrolyte. Investigate damage to battery condition, cable clamp, and positive terminal. Apply petroleum jelly or grease on top and tighten hold-down clamp bolt to prevent corrosion. Apply primer and paint to damaged metal parts then clean off corrosion with baking soda solution and water. If you keep the battery in a vehicle for charging purposes, remove cables. A good rating of a slow charger does not exceed 3 amperes. Over the twelve to sixteen-hour process of charging, lead covers should be removed from vent caps, connect charger leads onto battery posts while watching out for overheating.

First of all, a regular preventive maintenance program is needed to enable quick and reliable starts of your vehicle's battery. Whenever you are not driving, switch off the engine and accessories as well as disconnect the negative terminal and keep sparks and flames away from the battery. Also, the battery produces flammable hydrogen gas and contains corrosive sulfuric acid, so handle it with care and wear protective glasses. Look for corrosion, cracks, loose connections, clean clamps using warm water or baking soda. Ensure that you check if there are any signs of damage on the terminals before putting them back into place. Use a slow-rate charger to restore a discharged battery following instructions provided.

Disconnect both cables from the battery terminals. This can be done by removing the cable from a battery post with a wrench. Sometimes special battery pliers are required for this procedure if corrosion has caused deterioration of the nut hex. Always remove the ground cable first and hook it up last. If equipped, remove the heat shield from the top of the battery. Remove the bolt and wedge from the battery tray. This involves removing the bolt and the battery hold down clamp which secures the base of the battery to the battery tray. Lift out the battery, but be careful as it's heavy. Special lifting straps that attach to the battery posts are available at auto parts stores. Lifting and moving the battery is much easier if you use one. If necessary for access to other components, remove the bolts that secure the battery tray. On 1995 and later models, the battery tray is mounted on the driver's side of the vehicle and is fastened by three retaining bolts. On 1994 and earlier models, the battery tray is mounted on the passenger side of the vehicle and is fastened by four retaining bolts, two upper and two lower retaining bolts. Installation is the reverse of removal.

Battery maintenance is essential to prevent the inconvenience of a dead battery and ensure reliable vehicle performance.

Loosen the two battery hold-down clamp nuts to disengage the hold-down legs from the battery tray.

If the battery has removable cell caps, measure the specific gravity with a hydrometer every hour during the last few hours of the charging cycle. The battery is considered charged when there's no change in the specific gravity reading for two hours and the electrolyte in the cells is gassing (bubbling) freely. The specific gravity reading from each cell should be very close to the others.

Remove the battery heat shield if it is equipped.

Start by disconnecting both cables from the battery terminals.

Memory-savers are devices used to avoid problems caused by disconnecting the battery. They are typically plugged into the cigarette lighter and connected to a spare battery. This allows the vehicle battery to be disconnected while the memory saver provides sufficient current to maintain audio unit security codes, PCM memory, and power to always hot circuits such as the clock and radio memory circuits.

Remove the battery hold-down clamp and carefully lift out the heavy battery.

Lift out the battery carefully as it is heavy. Note that battery straps and handlers are available at most auto parts stores for reasonable prices, which make it easier to remove and carry the battery.

To disconnect the battery for service procedures, loosen the cable end bolt and disconnect the cable from the negative battery terminal. It is also important to isolate the cable end to prevent accidental contact with the battery terminal.

If corrosion is present on the battery, you should remove the battery for cleaning. Clean the cable clamps, terminals, and battery top with a baking soda solution, taking care to avoid spilling the solution into the battery.

If metal parts of the vehicle are damaged by corrosion, they should be covered with a zinc-based primer and then painted.

In a well-ventilated area.

Make sure to get one that matches the dimensions and ratings of the old battery. Additionally, transfer the heat shield from the old battery to the new one if necessary.

Clean or replace them if necessary.

Next, locate the battery hold-down clamp on top of the battery.

To disconnect the battery for service procedures, loosen the cable end bolt and disconnect the cable from the negative battery terminal. It is also important to isolate the cable end to prevent accidental contact with the battery terminal.

With a solution of water and baking soda, followed by rinsing with plain water.

A trickle charger usually takes approximately 12-16 hours for a full charge.

First, remove the bolt and wedge from the battery tray. Then, lift out the battery. Be cautious as it is heavy, and consider using special lifting straps for easier handling.

Any metal parts of the vehicle damaged by corrosion should be coated with a zinc-based primer, then painted.

If access to other components is necessary, the bolts that secure the battery tray can be removed. The number of retaining bolts depends on the model year of the vehicle.

A battery cannot be accurately tested until it is at or near a fully charged state.

Remove all of the cell caps (if equipped) and cover the holes with a clean cloth to prevent spattering electrolyte. Disconnect the negative battery cable and hook the battery charger leads to the battery posts (positive to positive, negative to negative), then plug in the charger.

Slow-rate charging with a one or two-amp battery charger is recommended.