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Old 04-30-2015, 10:24 AM   #11
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Quote:
Originally Posted by Yarome View Post
The only thing you really want to watch out for is ensuring that the cable runs are equal in length. The converter/charger with be charging both batteries at the same rate.
Quote:
Originally Posted by Jerry01 View Post
Oh and make sure it's the same battery and close to the same age as the current battery. A new battery ran in parallel with an old battery will lessen the lifespan of the new one.
Quote:
Originally Posted by Herk7769 View Post
AND the positive from the camper goes to the positive of the first battery and the negative from the camper's frame goes to the last battery in the stack to keep the battery usage (charge/discharge) equal.

The wires in between the batteries should be exactly the same length and gauge; as well as the heaviest you can buy to keep the current loss between batteries as low as possible.

As stated before, the only "drawbacks" are weight and cost. They also must be replaced in pairs if a two battery stack (all 4 if a 4 battery stack) when even one goes bad to keep the stack balanced.


See what I mean? When you start talking about THE BEST way to do it, there is a lot to consider.


Quote:
Originally Posted by doitdaily View Post
HMmm... That sounds familiar. I would still like to know the drawbacks to adding a second battery

Until you mentioned it, I don't see where anybody suggested there were cons to adding a second battery in either thread. But since you asked...some cons you might consider are the initial cost (battery, cables, mounting/box), upkeep expense (with two batteries, your twice as likely to have a failure), when it comes time to replace them, you will again "need" to buy 2 rather than 1, and then of course size and weight. Oh, and increased time to recharge.
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