ECO-WORTHY 10W Solar Car Battery Charger Maintainer 12V Waterproof Portable Solar Trickle Charger for Car Truck Boat Lawn Mower RV Trailer Tractor ATV Utility Vehicle Battery

immediately powered up and kicked out 15-16 volts unloaded, in rainy/cloudy weather no less. Connected it to the battery and the trickle charge was enough to power the car back up to the threshold for the key fob to work again after less than an hour. Battery obviously has issues and we plan to get a new one tomorrow, and plan to keep this solar trickle charger hooked up help offset some minor parasitic drain. I see some reviews expecting this to charge a dead battery....but that's never going to happen with a panel this small, and it clearly tells you that before you buy it. It's only meant to keep a healthy battery topped up, not bring and unhealthy one back from the grave. Most of the neg reviews are just people who didn't read.

It seems working, left for two weeks and came back battery could still started without problem. However, it is hard to tell if it is charging or not. The green LED indicates sun light also charging with no distinguish. Why can't they make green LED blink to indicate charging, solid green to just indicate sun light detected? Also the LED is located in a hard to see place, why don't they put LED facing outside, so that users can see it through windshield.

I recently purchased the 10W Solar Battery Charger, and I am extremely satisfied with its performance. The charger is suitable for keeping vehicles/boat batteries charged during weeks of disuse, without the need to disconnect the battery or have someone start the vehicle periodically. The indicator light on the back allows me to observe the charging state, and it’s waterproof, making it safe to use outdoors. The 10W monocrystalline solar panel uses trickle charging to charge the battery without causing overcharging, and the built-in blocking diode prevents reverse charging without extra maintenance at night, ensuring protection against damage. The panel works even on cloudy days, making it a reliable source of power. The upgraded PCB and addition function of reverse and overcharge protections ensure that the panel is still working normally, even if it's not possible to test the open-circuit voltage. The charger is easy to install, equipped with an SAE cable that can be plugged into the cigarette lighter port or connected to the battery terminal posts with the alligator clip. The connection can be completed within 3 minutes, making it suitable for use in cars, trucks, boats, lawn mowers, motorcycles, trailers, dump trailers, tractors, RVs, vans, campers, ATVs, utility vehicles, and more. Overall, I highly recommend the 10W Solar Battery Charger to anyone looking for a reliable, easy-to-use, and effective solution to charge their battery and keep their vehicle or boat running smoothly.

I have used similar solar chargers for years on my lawn equipment. These were added for use on my collector vehicles that are stored in a location without power making a Battery Tender unusable. They have a higher output that the units I use on the lawn equipment and a shorter cord. However, the cord is heavier gage, and the terminal clips are better quality. It will be a few months before I can get the vehicles out again, I am hoping these will supply an adequate charge over the winter. The other brand has worked well on the lawn equipment. Prior to using them I was replacing batteries every spring; we just finished the 3rd year on the current batteries.

Straight forward simple to use. Got it for a vehicle that we leave parked, but not long enough to justify disconnecting the battery or getting a full battery management system. Keeps it "topped off".

I tested this solar charger on a cloudy day using a multimeter and it was producing about 17.8 volts, so it definitely generates power even without direct sunlight. I installed it yesterday, and today I noticed my car battery has been staying very consistent around 12.2–12.3 volts. I already know my battery isn’t in the best condition anymore, but the charger is clearly helping maintain it. I also have a Viper SmartStart system, which constantly drains a little power from the battery. Before installing the solar charger, my battery would usually drop to around 11.8 volts overnight. Since installing this panel, the voltage has stayed steady at 12.2V since about 6 AM, which honestly surprised me. So far it’s doing exactly what a trickle charger/maintainer should do, keeping the battery from draining while the car sits. For a small 10W panel, I’m impressed. I would keep checking and see if anything change.

Pros Lightweight Easy setup Mms Cons Very slow trickle charge Gets hot very fast in sun

Not a bad little solar charger, been through rain, snow and ice storm and still working fine. Would buy again if it ever stops working.

Prima bueno services:)

12 Volt 10 Watt Portable Power Solar Panel oplader Backup voor auto werkt goed

I don't drive my car as much as I should and therefore have been using a 240v trickle charger to keep it charged but it isn't convenient rolling out an extension lead. This solar charger has solved that problem and is working very well. The cable runs under the seals on a closed door and under the bonnet with no problem.

Auch gut bei start stop probleme halt Batterie 54 Ah bei 98 %

dopo averlo provato qualche giorno, per tenere in vita la mia vecchia batteria dell'auto (di quelle costose fatte per essere continuamente caricate) ho deciso di prenderne subito un'altro!! In pratica il pannello lo danno per 10 watt, ovvero 700-800 milliampere , il voltaggio a vuoto si aggira sui 19 volt, con il carico arriva sui 14 circa, nel mio caso ho un consumo fisso intorno ai 400-500 milliampere (dovuto anche all'antifurto tracker gps) quindi se ho la batteria in perfetta forma (quasi mai visto che l'auto fa pochi chilometri e sta ferma per 1 settimana) si riesce a non rimanere a piedi....ovvero non si carica ne si scarica...ma ricordiamoci che adesso il sole e' molto forte!! e quindi abbiamo quei 10 watt detti belli pieni. Prendendone due....collegati in parallelo, mi assicuro di avere un 1500Mha in uscita verso la batteria quindi, almeno 1 ampere per la ricarica della stessa, anche nei giorni di meno luminosita ho abbastanza carica di mantenimento e una leggera ricarica. Prodotto promosso al 100% molto ben fatto anche nei collegamenti , e ovviamente Amazon sempre veloce e precisa.