Gauge Battery Terminal
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What gauge of cable is advisable to connect to 12V sealed lead acid batteries in parallel?
I am building a small 70 Ah battery power supply (using AC inverter) by connecting two 12 volt sealed lead acid AGM 35 Ah batteries in parallel. The battery terminals will be less than 12 inches from each other. I'm not sure what gauge of cable is necessary or advised? Any advice on gauge and materials would be much appreciated.
You're not working with a lot of current. My experience with wiring comes from 12v car electronics, and that puts out many more amp hours than your inverter. A car battery is grounded to the frame using a 4 gauge copper strand cable in many cases.
You're not going to be using a cable thicker than 4 gauge, this much I can tell you.
More Info:
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