ECO-WORTHY Upgrade 7.5W Solar Car Battery Charger Maintainer 12V Waterproof Solar Panel Portable Solar Trickle Charger for Car Truck Boat Lawn Mower RV Trailer Tractor Utility Vehicle Battery

Wife has a 99 5.9 cummins that doesnt get driven all the time. Things batteries keep dying every month so we slapped one of these things on and it helped keep them charged for a bit. I did have to break out an extra cable cause it wasn't too long but no biggie - gotta plug her in for the cold months anyhow. Easy to install and move around.

Awesome for battery maintenance. Works great. I have a diesel work truck that I only use about every other week. In the winter the battery likes to be a little weak on it. This has allowed me to connect the cable (which is plenty long enough to reach from the obd port adapter to the windshield.). Its compact size means it just lives on my dashboard. The panel is waterproof so I bought one for my boat and ATV to keep the batteries charged as well.

This little solar panel works wonders on my old pickup that I don't drive much. It came with a plug that goes right into the OBD2 outlet and keeps my battery from draining. I just lay the panel on the dash and plug it in. Very satisfied with the item.

Add 1/2 star for quality, price and delivery, but somewhat under-performance unless in very strong sunlight.

this is a great trickle charger for my Nissan Frontier. the OBDII works great. i cant use the plug in adapters because when then truck is turned off those plugs are turned off. Having the OBDII gaves me another way to keep the battery topped off in the cold weather and then the battery cable connectors for the other times of the year when the solar panel can be on the outside of the truck. This is a must have if your vehicle is sitting for days to help keep your battery in tip top shape. it comes with different ways to attach it to your vehicle. and there is also a light on the back of the solar panel that lights up to let you know that its working sending charge to your battery.

I like the concept! It's just no way to tell if it's on and working the first time I plugged it to the car's obd connector since it was barely light outside. I tried flashing a light to it but no charging light came on either??? I'll update any results hopefully I didn't get a defective one.

I love the size and quality.

Killed a good battery, didn't maintain it. I'm returning this.