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POWOXI 3.3W-Solar-Battery-Trickle-Charger-Maintainer -12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc.
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- 【PREVENT BATTERY REVERSE DISCHARGE】: solar car battery trickle charger uses a built-in barrier diode to prevent back discharge. Great for carefree use both indoors outdoors!
- 【AMORPHOUS SOLAR PANEL】: Enjoy powerful charging, even in cloudy weather conditions with ultra-convenient amorphous solar technology. 12v solar rechargeable battery
- 【USED FOR ANY RECHARGEABLE 12V BATTERY】: Use the outdoor solar battery maintainer to recharge cars, trucks, water scooters, tractors, ATV, snowfield motorbikes, ships, and even water sports devices. The RV 12V batteries maintain battery efficacy to extend its service life.
- 【DURABLE AND EASY TO USE】: The solar car charger is equipped with firm, durable ABS plastic casing. Install it easily onto a windshield, instrument panel, or into a 12V cigar lighter. Or use the alligator clip to connect it with a battery. Suction tray compatible!
- 【ONE YEAR WARRANTY】: The quality of your premium solar battery charger is guaranteed by CE/ROHS certifications and comes with a free 12-month warranty! If you have any questions, please contact us. Your suggestion can help us improve!
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The solar battery charger car has outstanding low-light level performance. With amorphous technology, it will continue to work, even in cloudy weather!
3.3watt Solar Trickle Battery Charger and Maintainer, 12V Battery Charger and Maintainer.
Solar charger is perfect for cars, trucks, motorcycles, campers, RV, boats, tractors, lawn mowers, farm equipment and any application where 12V battery is used.
If the batteries are short of power for a long time, the storage function of the batteries will be weakened, and even be dead.
The product is a solar charger maintainer and 12V battery charger, which can maintain the battery throughout the year.
Efficient solar panels absorb intense sunlight and convert it into electricity for transmission to 12V batteries.
Solar chargers don't consume battery power as they are equipped with reverse diodes that prevent the battery from discharging in reverse.The solar charger won't overcharge the battery or damage the battery.
（Please note）：solar charger can not achieve the charging result of AC charger, because it is generated power by sunlight. The charging effect depends on the power of solar panel itself，the intensity of sunlight and the duration of sunlight. So it's not a fast charger.
solar trickle charger
Engineered for Battery Maintenance
The solar battery charger is essential if your vehicles only occasionally used. It prevent battery from being dead when y want to use it.
It's designed to fully charge a battery and maintain it at a proper storage voltage with free energy source the sunlight.
solar 12v battery charger
One-way Quick Connector
The connector is one way to connect and disconnect, no need to recognize positive or negative, simple and easy to use.
The unit is maintenance free and will protect the battery against the discharge process that occurs naturally within a lead acid battery.
Note: In some makes of vehicles, the cigarette lighter may not operate when the ignition is turned off. If so, you can connect directly to the battery using alligator battey clamps and cables.
solar battery maintainer
Thin film technology
Back current protection
Dimensions: 14 X 8.5X 0.8 in
Weight: 2.2 lbs
1 *solar panel
1* 12V DC plug
1 * alligator battery clip module
4 *suction cups
1* user manual
Attention: It can't fill up empty batteries quickly.
|1.8 watt||3.5 watt||3.3 watt||9 watt||9 watt||20 watt|
|Rated Power||1.8 watt||3.5 watt||3.3 watt||9 watt||9 watt||20 watt|
|Cell Type||Amorphous||Polysilicon||Amorphous||Monocrystalline silicon||Amorphous||Monocrystalline silicon|
|Installation||Suction Cups||Suction Cups||Suction Cups||Suction Cups||Screws||Screws|
|With Charge Controller||NO||NO||NO||NO||✓||✓|
|Weather Condition||In any weather||Under strong sunlight||In any weather||Under strong sunlight||In any weather||Under strong sunlight|
|Dimensions||13.8 X 4.9 X 0.6 in||13.8 X 4.9 X 0.6 in||13.8 X 8.7 X 0.6 in||13.8 X 8.7 X 0.6 in||16.3 X 15.3 X 0.8 in||16.3 X 15.3 X 0.8 in|
Top reviews from the United States
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I have a car that is rarely driven, and I really liked the idea of not having to remove the battery to keep it on charge with an AC battery maintainer. This solar charger seemed like the perfect solution, in that it would use the power of the sun (no outlets needed) and mount inside my car (watertight). I installed the charger using the alligator clips direct to the battery, verified it was giving out wattage with a voltmeter prior to install and generally had the car parked in the sun. I even turned the car over every month. I had a new (15 month old) Interstate battery in the car, and simply wanted this charger to keep the battery topped off in good condition. Well today (maybe 3 months since install of solar charger) I tried to turn the car over, no dice. Tried jumping it, no dice. Brought the battery to Valvoline to be tested and they said it only had 87/500 CCA and that the battery was shot. Thankfully the battery is still under warranty but it looks like I'll be getting a proper AC powered battery charger.
Top reviews from other countries
I decided instead to use it for charging an iPhone when off-grid, simply connected it to a cigarette lighter adaptor using the croc clips supplied, the light for the charge cam on okay but the iPhone does not even show as charging
I would not bother with this as it does not seem to be able to do what I needed it to do
I checked the output and it was 36v which I assume will give the 12v at 3W as stated
If you are looking to keep a vehicle battery topped up (not charged) I would not bother with this
UPDATED BELOW: We have a third car which we do not drive very much and after having to repeatedly jump the thing due to a dead battery, I decided to try this out. We got the 3.3V as it states it will keep a full car battery charged - it did not.
Now, it did work somewhat as after a week of the car sitting there without having being driven it usually was totally dead. We had a mechanic check for drains on the battery and there were none and the alternator was charging fine so it was totally a case of the stay alive features of the car draining the batter (which was new).
We used a charger to fully charge it then put this solar battery tender on using the 12V cigarette lighter adapter and let it sit for a week unused. Normally, it would be totally dead but with the 3.3V tender in place for a week, the battery still had some charge, just not enough to turn the car over - so, could have something to do with our location (Edmonton, Alberta) or not getting enough consistent sun (it was cloudy for 3 days but sunny for the other 4) but, for us, it did not work. So, we returned this and will try the 7.5V version - hopefully that works better for out location. I will review that one once we receive it and I test it out.
UPDATE: I will also write a separate review for the 7.5 V version but that one seems better suited to more northern locations and those that may get a decent amount of cloudy weather. I returned this version and tried the 7.5V and that worked way better in Edmonton, Alberta. The test took place in June so not quite summer but the weather here too was cloudy and rainy for 3 of the 7 days. Starting from a full charge, I plugged the 7.5V version in and a week later started the car and it turned over no problem. Without any solar charger, the battery would have been too weak to even turn over the engine; with the 3.3V the battery had more charge, but not enough to turn it over; with the 7.5V, it turned it over no problem. I am very happy with the 7.5V and the 3.3V might work better for those in areas to the south where the sun is stronger. However, for Canadians, especially those north of the 50th parallel, I highly recommend getting the 7.5V. So, for me the rating is 2 star for the 3.3V and 5 star for the 7.5V.
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"More of a maintainer than a charger
Easy to install and use but small size also means low power output.
Will not charge a battery except in very strong sunlight. But as a maintainer is good on duller days"
The build quality of this solar panel is great and was able to generate an electrical current.
For me, with the light in the UK winters, it was unable to maintain charge in a car battery. I put this down to the light in UK winters rather than the product failing due to quality.
If selling a 12V solar charger, with a battery clip and cigarette lighter end, it’s highly likely it’s being bought to trickle charge a car. So it’s inability to do this is the reason for the 3*