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Features: Keep your battery topped up with solar power Quickly connects and disconnects to the battery Amorphous solar panel, works even if the weather is overcast or dull IP44 Weatherproof Splashproof design Durable ABS Plastic and solar glass Conveniently comes with battery clamp and cigarette light plug Maintenance free, lightweight compact design Interchangeable connectors: accessory socket plug and crocodile clips Blue flashing LED charge indicator Built-in diode prevents reverse charging Suction cups for easy mounting Sunway solar battery trickle charger maintains the 12 volt battery of car, truck, marine , motorcycles , tractors, ATVs, snowmobiles, boat or RV. Why do I need a solar trickle charger? Three reasons to own a Sunway Solar Battery Trickle Charger: Batteries Naturally Discharge - Automotive batteries naturally discharge when not in use. Vehicles have a small but constant battery drain - Modern vehicles have upwards of 30 body control modules (computers), alarm systems, immobilizers and lock monitoring. These units all consume electricity from the battery. That's why in a week or two with no or little vehicle use the battery can become discharged. Battery life is shortened if it is not kept charged - A 12V battery that is not correctly maintained above 12.4V can suffer from sulphation. Sulphation is the main cause of battery failure. That's why the auto battery easy goes to dead when vehicles are left standing for long periods. Get Sunway Solar Car Battery Charger As Your Battery Maintainer ,so you'll never have a flat battery again!!! Amorphous solar panel 1.5W, works even if the weather is overcast or dull. Specification: Solar Power:1.5W amorphous solar panel Performance: Wp≥1.5W, Voc≥21V, VL≥14V(Test condition under100mW/cm2) With build in diode to prevent reverse charging and blue flashing LED indicator Outlet Cable Length:2.4meter Product Dimension:353*128*14mm Product N.W:0.64KG The solar car battery trickle charger mounts easily to the windshield or dashboard and it is conveniently plugs into your car's 12 volt cigarette lighter! Suction cup available with the solar charger. Note: In some makes of vehicle, the cigarette lighter may not operate when the ignition is turned off. In such cases, you can connect directly onto the battery using the alligator battery clamps and cable provided. With Blue flashing LED charge indicator. It will flash whenever the battery is receiving charge.One way plug connector. Plug and Play. Pretty safe and very easy to install. Operation Notes: For optimal power, ensure the panel is directly facing the sunlight. Clean the Solar Battery Charger MONTHLY, or more frequently to maintain peak efficiency. If the battery capacity is 20Ah or greater, the charger will not overcharge the battery or cause any damage. The solar charger is a basic of trickle charger and it is best for slowly charging and maintaining battery charge.Please note that the charger is designed to top-up battery charge as a result of natural drainage. It is not intended to recharge a battery that has fully discharged. The charger can withstand splashing but is not fully waterproof and should not be submerged or left outside during rainfall. It is better for battery maintenance of small size vehicle. Interchangeable connectors: accessory socket plug and crocodile clips! The solar charger panel can be mounted to the windshield or mounted using the mounting holes and place the charger in the desired location in direct sunlight. Note:Some vehicles have tinted windows that will seriously affect the performance of your charger if it is positioned behind them. For Optimum charging the unit should be placed outside the vehicle in direct sunlight! Plug the solar charger into your vehicle's 12-volt lighter socket. In some makes of vehicle, the cigarette lighter may not operate when the ignition is turned off. Note:You must disconnect the charger from your cigarette lighter or battery when starting you engine or driving. Electrical surges from the car engine when starting and running may damage your charger. The charger can be connected to the battery using the crocodile clips provided. Note:Ensure the red cable is connected to the positive (+) and the black cable is connected to the negative (-). If in any doubt seek assistance from a competent person. Do not leave the solar charger connected and unattended for long periods. 1.5W Amorphous 4W Poly Crystalline 5W Mono Crystlline 8W Poly Crystalline 8W Mono Crystalline Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 6,593 4.2 out of 5 stars 6,593 4.2 out of 5 stars 6,593 4.3 out of 5 stars 216 4.2 out of 5 stars 6,593 Price $19.99$19.99 $29.99$29.99 $35.99$35.99 $35.99$35.99 $39.99$39.99 Rated Power 1.5W 4W 5W 8W 8W Solar cell type Amorphous Poly Crystalline Mono Crystalline Poly Crystalline Mono Crystalline Discharge Protection ✓ ✓ ✓ ✓ ✓ Cable Length 2.4m 2.4m 2.4m 2.4m 2.4m Covered with tempered Glass no data ✓ ✓ ✓ ✓
[Simple and Very Easy to Use]---The solar battery charger panel mounts easily to the windshield or dash and conveniently plugs into your car's 12 volt cigarette lighter! Suction cup available with the solar charger. { If you need a Quick Connection16feet Extension Cable SAE Connectors with Ring Terminal Adapters for this Sunway solar charger, please search the ASINB073158Q24.
[Solar Panel Power up to 1.8W]--This trickle charger will NOT overcharge your battery! Keep your 12 Volt batteries topped up with this solar battery maintainer ,which helps to manage battery drain in all seasons. The amorphous solar panel works well even in cloudy days.
[Stronger and Durable]-This solar powered battery charger is Covered with ultra clear PV glass which is more efficient, and also with Durable ABS plastic housing which makes this solar panels charger more stronger.
[For Any Rechargeable 12Volt Battery]--This solar battery trickle charger is the eco-friendly way to maintain the charge of any car, truck, marine , motorcycles , tractors, ATVs, snowmobiles, boat and personal water crafts or RV 12 volt battery!
[Prevent Reverse Charging]-- With build in blocking diode to prevent reverse charging. And with Blinking LED charge indicator when charging. And the solar charger maintainer Includes cigarette lighter adapter and battery alligator terminal clamps.
Short answer: Contrary to some of the negative reviews speaking about "warping", "discharging your battery" and other such things, it works exactly as advertised. I drive the test vehicle only a handful of times per year, so it sits outside for months on end sometimes which is bad for batteries, they like to be topped off all the time due to their internal chemistry.Long answer: I'm an Electrical Engineer so I did a few basic tests, with the following findings and some recommendations:NOTES: DO NOT leave the panel plugged in when starting or driving, spikes in the line might cause damage to the circuitry. It could fail and then put a load on the battery in that case. NO test for weather/water resistance was conducted, I have yet to test it in the winter time, which is a more challenging time for it and batteries too. I'm optimistic it will work ok given what I've seen so far. I tested this resting on the dashboard (no suction cups, I wouldn't trust that ever), with clear view of the sky facing generally slightly east of North during mid-late August, near the Washington DC area using a cigarette lighter connection with the supplied adapter. (it's FUSED, and works with a NEGATIVE ground socket/system, i.e. most everything not vintage) Some people have said the cig cable polarity is backwards, but in order to work as a CHARGER, the + connects to + as it should! Btw, the BLUE LED does NOT adversely effect the performance, and need not be "disabled" as some have claimed. The numbers I'm reporting are all with the unit as delivered, no modifications were made.1) NO Battery discharge when dark (i.e., it doesn't drain your battery in the dark, or ever due to internal diode) Tested on the bench as well with a power supply and ammeter.2) NO WARPING of case in direct sun 8hrs/day mid latitude US East Coast in August. (measured CABIN peak temps up to 117 deg, low of 69F, dash probably hotter in direct sun). ABS plastic has a glass transition temp (i.e. warping) around 105C (221F) so IF it is actually ABS, no melting/warping seems possible at temps found in cars NOT on fire lol!3) For a HEALTHY battery, it MAINTAINS charge easily overcoming a parasitic drain in my vehicle of 9mA or (0.009Amps), and still puts a NET 44mA (0.044Amps) charging current INTO the battery in direct noon sun, and a NET positive charge current (in clouds/overcast), albeit only 7.3mA. In only 1 sunny day (and overnight) my new battery @ 12.34v went to 12.55v from this device. This is because it is a HEALTHY battery. The max open circuit voltage of the charger I measured around 22v but it can only deliver 1.5W max so you aren't going to hurt the battery with such low currents, and at best charging currents are only present up to about a 1/3 the time during a 24 hr period I'd estimate.NOTE: A dead/failing battery cannot be rescued by this or any charging device, and my prior failed battery at 12.24v (after 2 day commercial charge from "dead") with this same device under same summer conditions in 2 days went down to 12.01v and failed to turn over the engine! After the attempt it was down to 11.5v, clearly no good.I think this is suited as a MAINTAINER, don't bother thinking this will "charge" a vehicle battery. I drive that vehicle very very rarely, so this will keep the battery ready to go without having to periodically start it every few weeks to charge it up.Temperature and time will reduce the efficiency of the panel, but there is a 4x margin in my case (with a 9mA parasitic drain, which is quite small). If your car has a lot of electronic features, security systems etc, your parasitic drain could be more than this can even put out. In that case you would need a bigger higher power panel (this is only 1.5W).To measure the parasitic drain: with all vehicle doors shut, pull the main battery fuse and put an ammeter there, since it will measure absolutely everything, using any other fuse will only get a subset of what your battery drain is. Start with the maximum scale (typically 10A) to be safe, switch to smaller scales once you know the range. Let the initial connection settle since there will be a surge for a bit as all the electronics initialize and settle into a steady state. My vehicle settled in about 5 seconds (an after market CD player self test used 250mA during that 5 seconds)In principle, some sensors and other fancy stuff could spike some current periodically, but this couldn't be known without a logging ammeter. In all likelihood it won't boost the average drain in any significant way from your measured steady state.
