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Battery Charger and Wire Guage
I recently bought a new battery charger. Even though the specs called for
12 guage, I installed oversized 10 AWG wire to the AGM batteries (one battery on each of 2 banks) when I installed the charger. When I crimped the fuses into the cables at the + battery terminals, all I had was 12 guage butt splices, so I just trimmed off a few strands from the 10 guage wire right at the splice. Once I had everything hooked up, I saw that the charger would only charge my batteries to about 80%. Well, I finally got around to replacing the butt splices with 10 guage, and now the charger is charging my batteries to 100%. I don't understand how less than one inch of 12 guage wire, or the 12 guage butt splice could have introduced enough voltage drop to cause an 80% charge in the batteries. Am I missing something? TIA for any responses. |
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