ECO-WORTHY 12 Volts 5 Watts Portable Power Solar Panel Battery Charger Backup for Car Boat Batteries

Was not working for Renault Duster diesel engine with the new battery... It will work only if we keep the key in start mode maybe... don't know or Maybe it's will work for others.

Use it to maintain my car battery. It comes with clear user instruction and really working well. I really hope that it can have the option for odb II cable. So need to source for a good obd cable separately from other seller. One day of charging I can already see the voltage coming back from 12.4v to 12.6v. Very happy with the result.

I have a 1994 Chevy Blazer(K5). Weekend truck cause I drive my Accord. When I bought truck in '14 ex-owner told me,"ok the back leakes for some reason"(fixed third brake light roof screw and bam..no more leak). Then he told me some REALLY bummer news," it has a battery leak/grounding somewhere"(omg im gonna need an electrician $$$😢). This truck will kill/lower a brand new batt in bout 5-7 days connected..not turned on. Ok so I've been Not disconnecting the battery however turn on every 2 or 3 days just to make sure and even then the truck sounds kinda TRYING to turn on but turns on. NOT NO MORE!!!! I leave this plugged in day/night(So.Ca.) I gave it 9 DAYS Staright plugged in then I got in the truck..IT STARTED LIKE A BRAND NEW BATTERY!!!OMG!!I FREAKIN LOVE IT!!. Best Part..its SOLAR TRICKLE CHARGER. It reaches my truck battery. I put solar plate on top dash, run 1 wire to battery, clip on batt. clips..Done!. Takes me about 30-35 SECONDS TO INSTALL! I feel like I'm in the 50's and I just bought a new car on my block and my male neighbors are on my jock cause they never heard of this or totally skeptical. Hands down a PERFECT 10 item. 👍 👍 WAY WAY WAY WAY UP!!. Best $20 bucks I ever spent..Im very close to serious when I say this.

Good value , good delivery , came as expected

This solar trickle charger is a solid choice. It comes with everything you need: the solar panel with side-flaps and 4 sucdtion-cups pre-attached, held together with an elastic strap, which also keeps the cables organized. The cable is long enough to go from the windscreen through to the battery, with a bit or cable to spare, if you want to mount the panel on the other side. It comes with both aligator clips and a cigarette lighter adapter, but note that you can't usually charge your car by plugging into the cig lighter socket, because when you car is turned off and locked, the cig lighter socket is disabled. So you need to run the wire through the doorjamb, and under the bonnet. It's ok, because the wire is thin enough to easily go through the doorjamb without letting any water in. I measured an 18V open-circuit voltage, and on a tree-covered street, I measured it charging at 12mA. Note that a typical trickle-charge rate is <0.001C, so a 50Ah car battery should be trickled at up to 50mA. This panel could output about 250mA in full sun, which is plenty, but it's not clear whether this device is 'smart' enough to limit trickle charge rate to avoid over-charging and off-gassing the battery. Conversely, it might not be enough to keep the battery topped-off if parked where it's too shady. I think 12mA during the daytime is enough though.

I was impressed in the quality of the product especially for the price. It is working well and easy to use. Will recommend to friends wanting similar product