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5W Solar Battery Trickle Charger Maintainer

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5W Solar Battery Trickle Charger Maintainer
5W Solar Battery Trickle Charger Maintainer
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Over time batteries naturally lose power and, if allowed to, can go flat. Renogy’s 5W Solar Battery Trickle Charger Maintainer will help you maintain a healthy battery by converting solar energy into a usable 12V DC current to keep your battery topped off at a stable level. With quick SAE connection and 3 options for ring terminals, alligator clips, and cigarette lighters, our Solar Battery Trickle Charger Maintainer is sure to be a great fit no matter what your application needs. It works great with boats, SUVs, RVs, electric fences, accessory batteries, and much more! Maintain a healthy battery and never be caught flat ever again!


  • For some makes or models of vehicles, the cigarette lighter port may not operate when the ignition is turned off. In such cases, please connect the trickle charger maintainer to the battery directly.
  • The trickle charger maintainer must be disconnected from the battery or cigarette lighter port when starting the engine or driving the vehicle. Electric surges from the alternator when starting and running may damage the trickle charger maintainer.

If you have any questions regarding this product, please call us at 1 (909) 287-7111 or contact us.

Key Features

Plug-and-Play Solar 12V Battery Trickle Charger Maintainer
  • Easy to use DC adaptors for direct battery connection (cig lighter, alligator clips, ring terminal, SAE connection)
  • Charges 12 Volt batteries with the power of the sun
  • Works with boats, SUVs, RVs, electric fences, accessory batteries, and more!
  • High-efficiency solar panel to charge in all daylight conditions
  • Built-in safety protection, plug-in 24/7 to battery
  • Maintenance free and easy to install

Package Includes

Renogy 5W Outdoor Battery Maintainer Charger

Renogy 5W Outdoor Battery Maintainer Charger

1 x

  • 1 x 5W Solar Battery Trickle Charger Maintainer
  • 1 x SAE to Cigarette Lighter Plug Cable
  • 1 x SAE to Alligator Cable
  • 1 x SAE to Ring Terminal Cable
  • 8 x Suction Cup
Renogy 5W Solar Battery Trickle Charger Maintainer 
Rated Maximum Power: 5W Optimum Operating Current: 0.28A
Optimum Operating Voltage: 18V Short Circuit Current: 0.31A
Open Circuit Voltage: 23.57V Output Interface: SAE
Output Tolerance: +/-5% Working Temperature: -4°F ~ 140°F/ -20°C ~ 60°C
Weight: 306.6g / 10.8 oz Dimensions: 29 x 18.5 x 0.5 cm /11.42 x 7.2 x 0.2 in

Warranty Information

Accessories 1-year material warranty
5W Battery Trickle Charger Specification
5W Battery Trickle Charger Manual

15 Reviews Hide Reviews Show Reviews

  • 5
    Quick & Efficient / suction cup flaps swing 180° !

    Posted by SkitnuRen on Jul 14th 2023

    A less known benefit of choosing this one is that it has a durable suction cup mounting capability where panel can mount to take solar uptake *behind* sun-exposed glass, OR, with its suction cup side flaps swung under panel 180° can position panels facing out on any smooth surface. That suction cup adjustability is innovative & useful ?? ________ BENCH TEST: I used this to charge a NAPA Legend AGM battery that had discharged to a 12.3 volt state of charge. I mounted it by the 4 suction cups (2 extra) to the underside of a glass patio table and clipped it to begin reviving my AGM battery sitting at 12.3 SOC [ Time Stamp of my photo: Tuesday 12:26 pm ] I took a photo of the SOC reading again of my AGM battery again once it reached 12.06v S.O.C. and time was 12:38 The Renogy 5w Solar Trickle Charger / Maintainer had brought the AGM battery up (from 12.3) to a 12.6 SOC in less than 15 minutes: (actually 12 mins.) [Time Stamp: Tuesday 12:38 pm ] That seems quick & efficient - I WAS surprised that the AGM revival { 12.3 to 12.6 } came in just under only 15 minutes with this Renogy product when I had been expecting 30 to 75 minutes charging time, or greater. I do realize that old school L.A. acid batteries will take longer. For AGM charging, this Renogy lower cost product tested out to be very efficient and quick. Will also use this for reviving my RV’s Lead Acid Deep Cycle on sunny days, (until that eventually gets upgraded with an AGM battery). This is a compact, well made product with innovative mounting options due to side flaps with suction cups for mounting behind or on top of glass / smooth surfaces.

  • 5
    Includes nice accessories

    Posted by Katie on Jul 14th 2023

    Nice little trickle charger for small batteries. I appreciate that renogy includes several ways to connect this to the battery, either using rings or clips. For a similar cost, I would encourage most people to buy the ten watt

  • 5
    Fast shipping thanks

    Posted by koop_matt on Aug 26th 2022

    Fast shipping thanks

  • 5
    good quality

    Posted by digginsgr8 on Jul 27th 2022

    good quality

  • 5
    5w solar trickle charger

    Posted by Jeff B on Mar 5th 2022

    Priced right and very useful for keeping coach batteries topped off.

  • 5
    Fantastic product!

    Posted by Jeff on Feb 28th 2022

    After I bought the first one, it worked so well I bought three more for my other vehicles. Highly recommend them.

  • 5
    Trickle Charger

    Posted by Patrick on Feb 26th 2022

    Works as described as a battery maintainer for my RV

  • 5

    Posted by Solorjack on Feb 19th 2022

    Great Fit great price great day for the bubbling and the smoke

  • 5
    5w solar maintainer

    Posted by Redneck on Jan 4th 2022

    Impressed with quality that it will last with care