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Solar Car Battery Maintainer 12V


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SKU: AutoSol-Maintainer-ThinFilm-12V1_2W | 4.20 (5 ratings)

4.20 out of 5
(5 customer reviews)

30.80 $15.95

Product Features:

  • High-Efficiency Amorphous Solar Panel
  • Protects From Battery Overcharge Damage
  • Cigarette Lighter Adapter / Alligator Clamps
  • Works In Sunny / Shady Conditions

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Every Year, This Product Is Equal To:

  • 6 Lbs
  • $ 0.6

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Product Details & Specifications

  • Voltage: 12V
  • Wattage: 1.2W
  • Amperage: 100 mA
  • Weight: 3 Lbs
  • Dimensions: 16-1/8" x 6" x 3/4"
  • Connectors Included: Alligator Clamps / Cig. Lighter Plug
  • Charge Controller: Blocking diode charge controller
  • Cord Length: 9.5 Ft
  • Solar Cell Type: Amorphous Thin Film
  • Charging Indicator: Blinking LED
  • Brand: AutoSol
  • Manufacturer: Silicon Solar

The AutoSol 1.2W features a high-efficiency amorphous solar panel that delivers great performance in sunny and shady conditions. The solar panel mounts quickly to your windshield or dashboard and plugs into your cigarette lighter or clamps directly to your battery and includes a blocking diode to prevent battery overcharging damage! This is the perfect eco-friendly maintainer for car, truck, marine or any 12V batteries.

Note: This product is not designed to re-charge a fully discharged battery. Batteries depleted beyond 80% cannot be charged with this product.


  • Easy to Use – No Installation Necessary
  • Maintains and Trickle Charges 12V Batteries
  • Works in Low Light or Cloudy Conditions
  • Use for Cars Light-Duty Trucks, ATV’s, Motorcycles, Tractors, Boats and More
  • ABS Plastic Exterior / Weatherproof Construction / Maintenance Free
  • Pre-Drilled Holes & Screws For Easy Mounting
  • Includes Cigarette Lighter Adapter & Alligator Clamps
  • Includes 9.5′ Power Cord

Compare This Product To:
Sunforce 50012 1.8 Watt Solar Battery Maintainer


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4.20 out of 5

5 reviews for Solar Car Battery Maintainer 12V

  1. 5 out of 5


    This unit is a must for any vehicle that sits for an extended period of time. As long as the battery has a full charge this will maintain the battery and it will keep the charge topped off. Over the winter my bike sits for long periods and with solar maintainer the battery fires the bike up every time. A weather proof unit is what I needed since it is mounted outside of my garage. It also has a 15′ extension for it. Beware that the positive and negative terminals are reversed on this unit as compared to most other battery chargers and maintainers so you will have to pay attention to that if you are swapping cables or you are integrating it will another charging device.

  2. 3 out of 5


    It’s a trickle charger, not a charger. You can’t charge a dead battery with this, but you CAN use it to maintain a good battery that you leave sitting. For what it was intended, it works just fine.

  3. 4 out of 5


    Keeps my motorcycles, generator, and lawnmower all maintained over the cold New England winter. WARNING, this is not a charger, it only maintains a healthy battery. Great product.

  4. 5 out of 5


    Great product + seller. Recommend for keeping your batteries charged!

  5. 4 out of 5


    I chose this one as the power was right for a small boat/hovercraft size battery (7Ah) and is totally waterproof so can be left out. Great price too.

    The one thing that annoys me about it is that the polarity of the standard plug is opposite of that of the other battery minders. No idea why – anyways I normally rewire to match so I can connect it to all my batteries as well as my battery tender.

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Silicon Solar
2917 State Hwy 7
Bainbridge, NY 13733
P: 1.800.786.0329


Why Shop With Us

Why Shop With Silicon Solar

Silicon Solar is, and always will be, a family owned and operated solar company dedicated to providing the highest quality solar powered products which have completed our rigorous quality inspection. We also manufacture a full line of solar powered products right here in our production facility; enabling us offer faster delivery and priority technical support.

Search our online catalog for hundreds of solar lights, solar fountains and many other products, including solar cells and solar panels. We also manufacture custom solar kits upon request for professors and educational programs.

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Silicon Solar
2917 St Hwy 7
Bainbridge, NY 13733

P: 1.800.786.0329

Contact Silicon Solar