

| Subject: | Re: Optima d750-S vs. d750-U |
| From: | David Beierl |
| Date: | Sat, 21 Aug 1999 01:34:03 -0400 |
At 21:34 8/20/99 -0700, Todd Last wrote: >The web site cautioned against using CCA and Amp hour ratings and to >instead look >at the Reserve and Cycle life to judge the quality of the battery. Ok, just visited the website. Looks like a great company, specially if you happen to want a locomotive battery <g>. I'd say their FAQ is about 95% true, but some of it is slanted in funny ways so you have to read very carefully what they *say* vs. what they imply; and some is condensed a little too much (IMHO) and can lead you in a wrong direction. I think their point about using reserve capacity to judge a battery is valid *if* your working load is in the 20-30 amp range. On a good-sized boat it could be much higher than that, working off a 1000 AH bank or three. But in a Vanagon without a battery trailer <g> I think an average drain of an amp or two is more realistic, in which case the reserve capacity will give a falsely pessimistic reading. cheers david David Beierl - Providence, RI '84 Westy "Dutiful Passage" '85 GL "Poor Relation"
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