How much battery charging from alternator?
Having spent a few years here I often read about the concept that while a typical trailer wiring connection from the vehicle to the camper will supply 12V, it is of low amperage and as such the camper...
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I use a volt meter to see and follow what my batteries do. I don't' know the wire Guage nor the alternator output, but in my testing recently, this is what I found:
In 6 days of dry camping in conserve mode, the 6-volt Trojan T-105's used about 18a per 24 hrs. So after those 6 days, we were down about 50-percent. I drove 400 miles in about 8 hours, disconnected, unhooked and turned the battery disconnect switch to off. I let the battery sit over night without any charge or use and tested the next morning. The meter read 6.37v. That tells me my batteries recharged from 50 to 100 percent in that 8 hours of driving. Not scientific, nor perfect, but the batteries are 8 years old and still working fine.
In 6 days of dry camping in conserve mode, the 6-volt Trojan T-105's used about 18a per 24 hrs. So after those 6 days, we were down about 50-percent. I drove 400 miles in about 8 hours, disconnected, unhooked and turned the battery disconnect switch to off. I let the battery sit over night without any charge or use and tested the next morning. The meter read 6.37v. That tells me my batteries recharged from 50 to 100 percent in that 8 hours of driving. Not scientific, nor perfect, but the batteries are 8 years old and still working fine.
