Battery Storage Charge Profile
Well I've gone and done it. I pulled my group 27 marine yesterday evening to move it to the boat in preparation to catch some spec's ahead of the storm blowing in today. I use this battery on my troll...
Forum Discussion
2112 wrote:
I thought I had my battery disconnect switch off for the last six weeks or so but I left it on. My WFCO boiled out my 6 1/2 year old battery (date code 06/10). She lived a good, long life but I murdered her.
Is 1 hour on, 23 hours off a good profile to maintain without harming my new not yet purchased group 27 marine hybrid or can you recommend a better profile? I have been leaving it on for 2 days and off for 5 but after so many years that's getting old. I'm looking for a better way without replacing the WFCO.
As one who has owned countless WFCO converters I doubt (as I said earlier) it had anything to do with "murdering" your battery. With adequate fluid there's little chance any WFCO could "boil out" any battery as rarely does a WFCO ever achieve it's advertised 14.4 volt bulk charge rate. None of mine ever have and is the reason I now instead use a stand alone CTEK charger that will. I'd say you killed it yourself by allowing parasitic draw to destroy the battery, perhaps also by not maintaining a proper fluid level in each cell. If you intend to keep using your WFCO to maintain your new battery I'd forget that timer nonsense, just plug the trailer in 24/7, and allow it to do it's job but anytime you're not plugged into shore power disconnect the battery. FWIW, my current Interstate G27 is now 10 yrs old, still maintains a full charge, and until about a year ago has seen nothing but a WFCO to maintain it. :B
