Since I have gotten some questions about the battery tender charger, and a picture is worth a thousand words, here it is.
This little guy senses the voltage of the battery it is hooked to and initiates a charge when it falls below a normal range. It knows if the battery is 6 volts or 12 and charges correctly for each. When the battery is fully charged, it shuts itself off.
Over time, as the battery discharges, it comes back on to top off the battery until it reaches the correct voltage again. Thus you do not boil the water out of the cells of the fully charged battery.
It is designed to be left on the battery for long periods of time in a maintenance mode. And comes with a second plug in lead with terminal eyes on it so you can mount that onto you battery more permanently.
It charges up to 1.5 amps, so it will keep a car or trailer house battery charged as well. If it did fail to turn itself off, at 1.5 amps times 12 volts, thats only 18 watts. That would take a really long time to hurt a car battery anyway. But the point is that it is there all the time, watching over the attached battery.
I got this at Wal Mart, back in the tires and batteries section where you go to get your oil changed or you tires balanced. It cost $20.86 in US funds in Kansas. If it works as described, I am sure there will be more of them hanging on various things around here!!!!
Retired Rod
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