Re: Battery Bank Combining for Charging –Sterling B2B Charger or Blue Sea ACR?
I think the one-big-bank vs. switching-between-banks will be a never-ending debate, and one that I don't think is a slam-dunk. I've gotten incredible life out of batteries in separate banks (O.K., they *were* Surrettes), and that was flipping the old A-B switch back and forth every day or so. The argument for separate sets is that they will always charge at their natural rate, unaffected by the possibly sulfated/hot/cold/whatever other battery in their bank. I think when they're new, having them in parallel (one large bank) is fine, but as they age, it tends to give grief. (A good argument for sets of 2v cells that are always in serial!).
Then again, I wouldn't argue with the large-bank proponents, either.
My other two cents - I think the Sterling B2B is a really cool idea, just haven't gotten a chance to put one in yet. Hoping to hear some first-hand comments.