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Yes.
-With two in series Ah's stay the same voltage doubles
-With two in parallel volts stay the same Ah's double
Amps
Keep in mind that while you now have a total of 200 Ah, that will leave 100 Ah of consumable DC before it is time to recharge your batteries. A rule that I follow is to never go below 12.0 volts or about 50% of combined Ah capacity.
Terry Cox
Keep in mind that while you now have a total of 200 Ah, that will leave 100 Ah of consumable DC before it is time to recharge your batteries. A rule that I follow is to never go below 12.0 volts or about 50% of combined Ah capacity.
Terry Cox
Terry makes an excellent point and one that is often over looked. The life of batteries is directly proportional to the number of discharges as well as the DOD or depth of discharge.
Cycling to a 50% DOD is the generally accepted low you want to regularly discharge to. If you can keep your state of charge to 60% you're doing even better.
One other thing that is often overlooked is that when away from shore power, and charging off an alternator, you will rarely get back to any more than 80-85% of capacity so your real usable Ah's from a 200 amp bank quickly become 80-85 amp hours of usable battery life before you hit 50% DOD..
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