With Durango models, start and finish your battery work by disconnecting the negative cable first to protect against battery damage. See how the top of your battery looks - if there's a green eye, your battery charge is between 75% and 100%; if there's a black eye, you're between 0% and 75%; and if the eye is clear, the electrolyte level is too low. Standard batteries in vehicles cannot be opened because they come sealed with non-removable caps. If you see the battery eye is clear, then it needs to be replaced. Simply add distilled water to the marked point when maintaining low-maintenance batteries. If your battery charges too much, it may indicate low electrolyte levels, so start by testing the
Alternator's charging voltage after restoring the battery's power. Using a voltmeter, check the open voltage of your battery; it should read more than 12.4 volts when fully charged after wiping it clean. Only run a load test from a battery load tester when the charge is high enough. With the battery fully charged, place it on the tester and apply 50 percent of the battery's original CCA rating for fifteen seconds. Keep the result above 9.6 volts. To safely remove the battery, unbolt the negative terminal first, then disconnect the positive terminal, loose the hold-down clamp, lift out the battery, and look for corroded tray parts while doing so. First, scrub away any buildup with baking soda. Then, protect your battery from rust by spraying on paint that stops rust. When buying a new battery, make sure it has the same exact technical features as the one you take out. To remove the battery tray, start by undoing the clips that keep the heater hose, wiring harness, and ground cable in place. Then take off the right front wheel, followed by the clips from underneath the tray. Finally loosen and remove the mounting bolts. Installation is the reverse of removal.