Schumacher SP-200 2.4W Solar Battery Maintainer

Schumacher SP-200 2.4W Solar Battery Maintainer
  • It is environmentally safe
  • No electricity needed for operation
  • Amorphous technology allows charging on cloudy days
  • Rated for indoor and outdoor use
  • Complete with battery clamps and 12 Volt plug

After much contemplation and research,,, and calling the manufacturer I've been informed (buy the manufacturer) that this unit does NOT have any method of charge control. Beware! ... you can easily overcharge your battery(s) with this unit. Overcharging can cause serious irreparable damage to your battery. Therefore, unless you're continually monitoring the charge state, and can disconnect this charger at the appropriate point, you need to use a charger that incorporates a charge controller. Don't use this unit as a "connect it and forget it" method of keeping your batteries charged or "topped off". You need something that has a charge controller. 73.

UPDATE: In response to other comments; yes, if you're charging (maintaining) large capacity batteries such as automotive or marine, a controller may be unnecessary. Caution due however with smaller batteries.

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The charger works as advertised. The only thing I found lacking was a status light indicating that current was flowing to the battery when plugged into the cigarette lighter. I had to use a multimeter to check contacts at outputs for voltage 19.2 volts. It appears well made, price is reasonable, and shipping was speedy.

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I use this one on the battery in my RV in the Mountains. I have used for two trip so far and the battery is alway fully charged when I get to the camper and open up slide out. Great product with no out of pocket expense once you have purchased.

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This does not work to charge my battery in my car because when the ignition is off there is no connection to the battery from the power port (cigarette lighter). Instead I have a spare car battery that I charge with the alligator clips and use with a power inverter to use as a power back up in case of a black out.

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Have a truck I don't drive every day but alarm drains steady power and after 4 days dead. Not only does that kill a standard car battery but makes it inconvenient to get the truck started. So after my research, went with this solar maintainer because its very simple and well made. No need to worry about overcharging a car battery since its so low of wattage. The one downside or warning is don't start the vehicle with this still plugged in because it suppossedly will backfeed from the alternator and fry the unit. I wish there was a way where I just hardwire this in and not worry about it truly, still researching if a controller will prevent that. By the way mounted on my dash with some doubleback tape.

1 comments:

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