The trick here for prolonged storage seems to be to keep the battery always fully charged, but not to put so much juice into it that the electrolyte will boil off. Probably 1/4 - 1 amp max. would be about right.
Why not simply fully charge your battery with a real battery charger, then hook it up to one of those small 12 vdc transformers that were made to power small units such as cell phone chargers, toys, etc. Most folks have drawers full of them around the house. Simply hook one of those up to your battery and it should nicely do the trick of keeping your battery at peak for no equipment cost and damn little electricity cost.
Anyone have any negative comments about this concept?
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