Winter Storage and AGM batteries

[Outbumn]

When one of our second set of wet cell batteries shorted, I replaced them with AGM's. Is there anything special I need to do while the coach is in winter storage in relation to these batteries? It will be plugged into 30amp service thoughout the storage. What about leaving a 12 volt light on to put a draw on the batteries? Will this help in not overcharging the batteries?

Thanks all......

[wa8yxm]

Same as any other Lead Acid battery

Charge 'em up to full and pull the negative lead off 'em to insure zero parasitic loads

Optional slap on a Battery Minder or Battery Tender or equivalent

But since AGM's hold their charge better than Flooded wet cells,, that is truly an option.. I would not spend the money myself.

[hamguy]

Originally Posted by Outbumn

When one of our second set of wet cell batteries shorted, I replaced them with AGM's. Is there anything special I need to do while the coach is in winter storage in relation to these batteries? It will be plugged into 30amp service thoughout the storage. What about leaving a 12 volt light on to put a draw on the batteries? Will this help in not overcharging the batteries?

Thanks all......

I agree with the other post. Pulling current will not help. BUT, you MUST have a 3-stage charger. PD9245 or so. That will keep the batteries healthy and you need only check them on a 3 month basis. I went 8 months and then had to add about 3 oz. of distilled water total to all cells.

Be sure you put a Battery Minder on the engine battery also.