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The Schumacher 2.4 Watt solar battery maintainer trickle charges your 12 Volt battery and extends battery life. It is easy to use and requires minimal maintenance. It provides 2.4 Watt of clean solar power for your auto, motorcycle, ATV, or riding mower batteries and even works under cloudy conditions. It has dual adapters for connecting to a battery or to the 12 Volt port of a vehicle.

Product Features

  • 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

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  1. Mark Smidky says:

    Works as advertised

  2. Steve Wayne says:

    No Charge Controller 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…

  3. E. Hill says:

    Schumacher SP-200 solar maintainer The Schumacher Solar battery maintainer is a solar panel with a cigarette lighter type power plug and a set of battery clamps.I measured the open circuit voltage at noon near the Summer solstice at 21.2 Volts.The short circuit current at 191 milliamps and when connected to a charged automotive battery the current was 165 milliamps. The current will vary with the battery voltage so for a charged battery at 12.6 volts the current should be about 190 milliamps to get 2.4 watts…

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