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How to Hook Two Batteries Together

The car battery is recharged by the alternator of your car so that it can continually supply electricity. Hooking two batteries together can be done without much effort. It is a simple process that will take only a few minutes. You may want to connect two batteries to have a longer charge build-up or for another project needing battery power to last longer between charges.

Instructions

1

Find a safe place to work and put on gloves and protective goggles.

2

Lay out connector cables so they are easy to access.

3

Connect the batteries by attaching the negative side of the first battery to the positive side of the second battery using your cable. Tighten the retaining nuts on the cable clamps with pliers.

4

Hook the positive side of one battery and the negative side of the other battery to your power need. Tighten the retaining nuts on the cable clamps with pliers.