Most of us who RV camp own more than one vehicle. Sometimes spare vehicles (and their batteries) sit for a long time. Enter the Battery Tender (http://goo.gl/OfQefc). This ingenious little device helps take care of vehicle batteries when they are in storage or otherwise not being used.
We use the Battery Tender Junior and are happy with it. For faster charges, consider the Battery Tender Plus. It works for all lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell).
Our Battery Tender Junior does the job at a great price. (Click the pic for more info.)
Nothing kills a battery faster than letting it drain down to zero with no recharge.
Car batteries are designed to be used regularly. They should be cycled (drained and recharged) in order to get maximum longevity.
That’s the idea behind the Battery Tender.
The Battery Tender Plus offers more power than the Junior for faster charging. (Click the pic for more info.)
A Battery Tender is more than a trickle charger. After charging the battery to full power, it switches into “float” or maintenance mode that actually drains and recharges battery power in the same fashion as using the battery with your vehicle. A Battery Tender thus maximizes battery life. Your battery is treated as if it was being used properly every day, instead of just sitting still in storage.
If you have a vehicle battery in storage, you need a Battery Tender.