[Jay H 237]

Originally Posted by ebarker

We use this charger. It charges 10 batteries at a time, at a sweet 2 amp rate. Keeps them in good shape.

http://batterytender.com/telecomm-st...12v-at-2a.html

Another vote for the battery tenders, I have the 12v jr model I use on both of my stored cars during the winter.

http://batterytender.com/automotive/...-at-0-75a.html

I haven't done any of 237's batteries with it but it would work fine and also great during storage of the batteries. I know the site lists it at $39 but they go on sale at times through other sites, I paid $26 for mine.