Posted by jack on August 27, 2009, 1:18 pm
what is the lower limit for an otherwise perfect lead-acid battery when it
charged, if stored for an extended time?
same question for a sealed AGM battery.
normally, I've checked both once a month and if voltage is below 12.5, connected
trickle charger for a day or two.
Posted by Scott Dorsey on August 27, 2009, 1:53 pm
If it's a lead-acid battery, drain it and store it dry, then refill it when
you need it.
If it's a sealed battery, use a battery tender on it.
"C'est un Nagra. C'est suisse, et tres, tres precis."
Posted by vaughn on August 27, 2009, 2:05 pm
Battery Tender gets my vote. http://www.batterytender.com/ Very good stuff
(but not cheap)
Harbor Freight has a cheap version that has also given me good service.
Under $0 and often on sale for much less than that!
Posted by jack on August 27, 2009, 2:28 pm
I have this unit
Posted by vaughn on August 27, 2009, 2:46 pm
That one should be fine (it may even be a rebranded Battery Tender). Just
connect it to your battery and forget about it. There is no particular need
to disconnect it as you should for any "dumb" charger.