Paul, here is a good link explaining the difference between a trickle charger and a float charger.
Basically, this: A trickle charger will keep an output of about 13.8V constantly, which can eventually overcharge the battery. It is fine as long as it is disconnected periodically to let the battery rest and self-discharge some, then reapplied until the battery comes back up.
Some "battery tenders" will trickle charge with a voltage of about 13.8V until the current accepted by the battery drops down, then it shuts off and comes back on as necessary to keep the battery fully charged. Some will charge until it reaches full charge, then drop down to a constant "float" voltage of about 13.2V to keep the battery fully-charged and won't overcharge it. A simple float charger will maintain a fully-charged battery if it is already charged up, and in my experience. Harbor freight does sell inexpensive float chargers.
Jerry J
----- Original Message -----From: Paul ArnoldSent: Tuesday, November 02, 2010 1:57 PMSubject: [tabtrailers] Re: How to store for winterIs a "float" charger the same as a "trickle" charger, and if not, how is it different? Thanks. ~Paul Arnold
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