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Old 09-02-2014, 02:24 PM   #1
Join Date: Jun 2012
Location: Amarillo TX
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Upgrade 3 stage charger to 4 stage?

I have a WFCO 68100 100 amp converter/charger with 3 stage charging: absorption 13.7v, bulk 14.4v, float 13.2v. Would there be any benefit to upgrading to a 4 stage Progressive, Xantrex, or other? Would it recharge faster and top off the 2 6v cart batteries better? Or would I be better off putting the money towards a solar system? Would like to reduce generator run time while boondocking.

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Old 09-02-2014, 02:47 PM   #2
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When they say 4 stage, that's simply adding an equalize mode. It's not used in the actual charging process, but can be a nice feature if the need arises. Maybe once a year. You have to decide if it's worth the additional money since there are a lot of battery box stores that will do it for you for a small fee.

Beyond that I'll bite my lip.


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Old 09-02-2014, 03:08 PM   #3
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I am far from an expert, but here's my opinion...The "top off" stage of battery charging happens very slowly. I feel you would get more towards your goal of cutting your generator run time by spending your money on another pair of batteries. This would allow you to build up to your needed charge quicker by only utilizing the "bulk" mode during generator use. You would "top them off" when hooked to shore power.
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