Charging and storing batteries boat,snowmobile,lawnmowers?

Store the batteries on a block of wood, not on cement. Keep them topped off with distilled water and trickle charge them once or twice a month to maintain the charge.

There are trickle charging systems used by large storage facilities but that can be expensive.

Give your batteries a good charge before they are put in storage and maybe give them some juice every 4 to 6 weeks.

Best place to store is in a relatively warm, dry place like a basement or a heated workshop. Keep them off the ground or insulate against the ground. Also, watch the fluid level, keep them topped off.

Best of luck, snowmo batteries have notoriously short lives.

At garage where my car get fixed they have a trickle charger in series for their batteries. But you'd probably have to buy a pro model, as it will probably burn out a regular charger for 1 battery in series.

I've seen a photovoltiac maintainer at Walmart for $45 to recharge batteries from Sun power. I am thinking of getting one.

I hear your pain... too many batteries and who wants to replace them all in the spring!!$$ I have to admit, for $25-$30 each, I have a trickle charger for each battery. Your best bet is WalMart, and they'll last forever!

here is a good primer on 12v batteries that should answer your questions

http://www.ccis.com/home/mnemeth/12volt/12volt.htm

hope this helps