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Connect the clamp to the positive battery post.
Clean battery terminals with a wire brush or baking soda solution if corroded. carquest battery charger cq 80cr manual
Connect the clamp to a clean, unpainted metal part of the vehicle chassis or engine block, away from the battery. Plug the charger into a 120V AC outlet. Step 3: Selecting Your Mode Connect the clamp to the positive battery post
: Easy switch-based selection between voltages and amp rates. Manual Monitoring carquest battery charger cq 80cr manual
As a "smart" charger, the CQ80CR may not detect a battery if its voltage has dropped below a certain threshold (e.g., below 2V). A common workaround is "piggybacking" a healthy battery to the dead one with jumper cables to "wake up" the charger.
