Quote:
Originally Posted by NavyVet1975
Any opinions on the advantages or disadvantages of four 6V vs two 12 V house batteries?
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Not surprisingly, I agree with Duckface. It is the weight of the lead paste in the wire grids that determines battery's capacity. Thus the heavier the battery the more capacity. It doesn't mater is is a single cell producing 2.12 volts or a 24 cell battery producing 50.9 volts. There are GC-2 GC-8 and GC-12 battery sizes used in most common golf carts to produce the nominal 48 volts the cart's motors require. So whether you use 8 GC-2, 6 GC-8 or 4 GC-12 batteries the all work just the same. The only advantage is less cabling for 4 batteries as compared to 8 batteries. So are two 30 lb 6 volt batteries better than one 12 volt 60 lb battery is producing the same amp-h? NO! Is a starting battery good to be use as an house battery? No. Is a deep cycle battery just as good as starting battery to start the RV engine? NO.
There are three basic types of flooded lead-acid and AGM batteries: starting, marine/RV and deep cycle. Their only difference is the number of plates per cell and the thickness per plate. Thicker plates mean more recharge cycles but at at a very low current flow. Starting batteries have many thin plates per cell and can provide an extremely large current flow but for only a short time. Discharging them below 80% of the capacity will shorten their cycle life and can warp the plates. Marine/RV batteries are designed basically to run trolling motors that require a fairly large current for a long time. They tend to be more rugged than deep cycle and starting batteries. With a marine/RV batteries, the max amperage load should be limited to about 100% of the amp-h capacity. Where as a deep cycle should be limited to 50% of its amp-h capacity. This is not an absolute valve but the recommended value for max battery life.
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