How to Install Deep Cycle Batteries in Parallel
Deep cycle batteries can be found in applications that require a steady and long lasting source of power, such as recreational vehicles and electric-powered golf cars. Deep cycle batteries differ internally from conventional automotive batteries and are designed to handle a much higher discharge rate without risk of damage or a shortened lifespan. Connecting a series of identical deep cycle batteries in a parallel configuration will increase the available amperage to the connected circuit, while keeping the battery voltage the same. Connecting two or more deep cycle batteries in parallel is an easy task when using the correct components.
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Things You'll Need
- Two or more matched deep cycle batteries
- Deep well socket set
- Wrench set
- Battery terminals
- Large gauge battery cables with ring terminals installed
Instructions
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1
Arrange the batteries side-by-side, with the positive and negative battery terminals aligned to match each other. This will eliminate confusion and allow for a cleaner cable installation.
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2
Secure battery terminals to each post, using an appropriate size socket and wrench. Use the wrench to hold the post-side terminal bolt head, while tightening the nut with a deep well socket. Do not hammer the terminal to the post or apply excessive side pressure to the post, as damage to battery may occur.
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3
Remove the top bolts from each post terminal, using an appropriate size socket. Secure the red-colored positive battery cables to each positive terminal, using the top terminal bolts and appropriate size socket; the cables should form a straight line configuration across all of the positive terminals.
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4
Connect another longer length of red positive cable to the battery closest to the circuit being powered.
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5
Repeat the connection procedure for the negative battery posts and connect a sufficient length of black negative cable to the closest negative battery terminal, in relation to the intended circuit; do not allow the positive and negative battery cable ends to touch each other, or come into contact with a conductive metal surface.
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6
Connect the positive and negative cable ends to the appropriate terminals located on the intended electrical circuit to complete the process. Make sure the power switch for the electrical circuit is in the off position, or otherwise disabled before making the connections.
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