Q: How to disconnect and replace a battery on Jeep Wrangler?
A: Always disconnect the negative cable first and hook it up last or the battery may be shorted by the tool being used to loosen the cable clamps. First, disconnect the negative (-) battery cable from the negative (-) battery terminal. Then, disconnect the positive(+) battery cable from the positive(+) battery terminal. Remove the battery hold-down clamp next. Lift out the battery carefully as it's heavy. While the battery is out, inspect the carrier (tray) for corrosion if you have early models with a metal tray. If you are replacing the battery, make sure you get one that's identical, with the same dimensions, amperage rating, cold cranking rating, etc. On models so equipped, transfer the thermal guard to the new battery. Installation is the reverse of removal. Connect the positive(+) battery cable first, then the negative(-) battery cable second.
Q: How to maintenance battery to prevent being stranded with a dead battery on Jeep Wrangler?
A: Before servicing your battery, turn off the engine and disconnect the negative terminal. If a maintenance-required battery is installed, check the electrolyte level and add distilled water if needed. Check the battery, cable clamps, and terminals for damage. Remove corrosion with a baking soda solution and coat damaged parts with zinc-based primer.