Originally Posted by Hoohaa
Yes. This is what I have heard. I allready own these two different batteries, so am trying to find out what will happen if I wire them in sequence? Short term? Long term?
I can go and buy new batteries but it seems like a waste of the two that I allready own. Is it really an unknown quantity? If so, I don't have much too loose by giving it A go.
I am still trying to get my head
around the links, thanks.
Even if the age old dictum is evolving to become only "same type" (see SL's very interesting post) -- versus "same size/type/age" -- I've always understood that guidance to be simply about getting the best performance and longest life out of a given set of batteries.
Batteries of different types accept charge at different rates, so that's why you'd want to have batteries in a bank all being lead acid, or all AGM
, or all gel, etc. And then the charger
would be set to handle the appropriate charging
rate for that chemistry, and the appropriate duration for the bank size.
Assuming same type, and as long as all cells in each are OK at the start (see David's comment about hydrometers, which aren't expensive), combining your existing batteries probably isn't actually going to hurt anything. (I might think to modify that if one is a Lifeline AGM
be equalized, and another is a different brand of AGM which cannot
be equalized... but that's just guessing at an appropriately cautious approach... and I'm assuming you might not have AGMs anyway.)
And I should point out: I'm not an expert on this topic!
Can't say how much LESS performance or longevity you might experience, if any, but if it were me and the other choice were to sacrifice a couple of perfectly good batteries in favor of all new... I'd go ahead and combine 'em, use 'em until they crap out.
And still do all that stuff about isolating starting batteries from house bank, etc...