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Most Recent Questions
Recent Question:
if you plug into the 12v power outlet, do you still need a charge controller, I have two outlets and one stays on all the time?
Recent Question:
Can two panels be connected together into a charge controller?
Recent Question:
Does the battery need to be in a well ventilated area while charging with the solar panel?
Questions with Most Recent Answers
Question:
if you plug into the 12v power outlet, do you still need a charge controller, I have two outlets and one stays on all the time?
Question:
Can two panels be connected together into a charge controller?
Question:
Can I extend the charge cords to reach inside a building?

Customer Questions & Answers for
Amorphous Solar Panel - 7 Watt

Item# 28650
"The 7 Watt Amorphous Solar Panel works in direct sunlight, low light, hazy and even cloudy conditions to charge a 12V battery. Product Style Battery charger, Material Amorphous solar cell, aluminum frame, Includes Solar panel, 6 ft. wire w/battery clamps, Battery Type 12V, Watts 7, Battery Included No, Panels qty. 1, LED Light No, Dimensions L x W x H in. 12 13/32 x 15 3/4 x 3/4. Sturdy aluminum frame Weather-resistant 7 Watt panel Built-in trickle charger function is ideal for use with cars, boats, tractors, RVs, water pumps and more Blocking diode prevents loss of charge Includes 6 ft. of wire and battery clamps 12.4in.L x 15.75in.W x 0.75in.D"
Customer Questions & Answers:
22 Questions
 | 
47 Answers
Overall Rating:
4.615 out of 5
4.6
out of
5
Product Details

Questions & Answers for Amorphous Solar Panel - 7 Watt

Question

Can you hook this up to your battery while using a power inverter

Can you hook this up to your battery the same time while useing a power inverter
asked 2 years, 1 month ago
by
Anonymous
on Amorphous Solar Panel - 7 Watt
+1point
9out of 17found this question helpful.
4 answers
Answers
answer 1
Yes you can hook it up to the battery. The power inverter will emit a beeping sound when the batteries go below a set voltage amount.
I think one 7 watt solar panel is a bit small in watts to use it to charge a vehicle battery in less it is more or less just a Trickle charger for more than one day.. However, if you do want it to do that you need to get a Charge Controller of some type shown in the catalog. It may take a couple days to charge a vehicle battery using this small unit.
I have three 7 watt panels going through a charge controller and charging two Aux batteries in my Motor home.
I keep the Power Inverter hard wired to the batteries, however I do not use the inverter unless the batteries are fully charged.
It takes my three panels up to two days to fully charge them.
answered 2 years, 1 month ago
by
joetheragman
 - Chula Juanna
+5points
5out of 5found this answer helpful.
answer 2
Wel-Bilt Expert
This solar panel can be connected to a battery when a power inverter is being used. This panel provides the battery with 7 watts per hour in ideal conditions(placed in direct sunlight, not cloudy). Your battery charge will drop accordingly if the items running off your inverter draw more than 7 amps.
answered 2 years, 1 month ago
by
WelBiltExpert11
+5points
6out of 7found this answer helpful.
answer 3
Absolutely...
answered 1 year, 3 months ago
by
DemolitionMan
0points
0out of 0found this answer helpful.
answer 4
I can't think of any reason why you couldn't do this.
answered 3 months, 2 weeks ago
by
RRRancher
 - Texas
0points
0out of 0found this answer helpful.
Question

Do you have to disconnect this charger at night?

asked 1 year, 2 months ago
by
Anonymous
on Amorphous Solar Panel - 7 Watt
0points
0out of 0found this question helpful.
4 answers
Answers
answer 1
Wel-Bilt Expert
This solar panel does not have to be disconnected at night. It features a blocking diode to prevent the 12 volt battery(not included) from discharging during nighttime hours.
answered 1 year, 2 months ago
by
WelBiltExpert11
+1point
1out of 1found this answer helpful.
answer 2
No. It wont do much charging, but you can leave it plugged in.
answered 1 year, 2 months ago
by
Ryan123456
 - Nashville, TN
0points
0out of 0found this answer helpful.
answer 3
I keep mine attached to my battery 24-7. No issues at all. Been hooked up for several months now.
answered 1 year, 2 months ago
by
N2Deep
 - Portland, Texas
0points
0out of 0found this answer helpful.
answer 4
This panel comes with a blocking diode built in that will not let a battery discharge back through the panel. So it can stay connected all night.
answered 3 months, 2 weeks ago
by
RRRancher
 - Texas
0points
0out of 0found this answer helpful.
Question

Will this overcharge?

It doesn't say anything about a regulator or module that shuts off the charge if it is battery is charged. Does this continue to feed power to the battery if the battery is charged?
asked 2 years, 4 months ago
by
Thatguy2012
on Amorphous Solar Panel - 7 Watt
+14points
14out of 14found this question helpful.
3 answers
Answers
answer 1
Wel-Bilt Expert
This panel, as well as any system under 15 watts, will be safe to use without a charge controller. It has built in protection and will not overcharge the battery.
answered 2 years, 4 months ago
by
WelBiltExpert29
+11points
23out of 35found this answer helpful.
answer 2
This is basically a trickle charger - as the battery voltage comes up the battery itself will act as the regulator. I have one of these hooked directly to a 100AH deep cycle battery on the boat and it works fine without a secondary controller - doesn't overheat the battery or cause electrolyte loss.

If you're charging a very small wet cell battery or using it for other kinds of work you may need a secondary controller.
answered 2 years, 2 months ago
by
57Scotty
 - Illinois
+9points
12out of 15found this answer helpful.
answer 3
There is no regulator built into this panel. It will charge the battery anytime the output voltage of the panel exceeds the voltage of the battery. Do you need a charge controller for this panel? Some sources say any panel over 5 watts needs one. Others say differently. I have had this panel on my gate opener battery, which is a garden tractor size battery, for over three months now, with no regulator. I have seen no ill effects so far, and really don't expect to see any. Don't take my word for it, but I really don't think this panel has enough power output to damage a battery of this size or larger by overcharging it.
answered 3 months, 2 weeks ago
by
RRRancher
 - Texas
+3points
4out of 5found this answer helpful.
Question

Can I hook this up to my boat battery and leave it hooked up all winter to keep the battery charged?

asked 2 years ago
by
cls2
 - Kansas
on Amorphous Solar Panel - 7 Watt
0points
1out of 2found this question helpful.
3 answers
Answers
answer 1
Wel-Bilt Expert
Yes, you can use with a boat battery as long as it is 12 volt. It should work, but may not if for some reason there is still a large draw on the battery when idle.
answered 2 years ago
by
WelBiltExpert29
+2points
2out of 2found this answer helpful.
answer 2
Yes BUT the big question comes in where you live, and store the boat. first make sure the battery is topped off with DISTILLED water (cooking off water with deposits or chlorine in it will kill the battery). Next The panel needs light to work... use accordingly
answered 1 year, 3 months ago
by
DemolitionMan
+1point
1out of 1found this answer helpful.
answer 3
Yes, this panel will not overcharge your battery and will keep it fully charged as long as it is in direct sunlight most of the time. Even on cloudy days or rainy days, it will still be supplying some current to the battery. It doesn't require full sunlight to produce charging current, although it will generate a good bit more current on a sunny day.
answered 3 months, 2 weeks ago
by
RRRancher
 - Texas
+1point
1out of 1found this answer helpful.
Question

can i hook two of these to a single battery?

can i hook two of these to a single battery? is for a house in the woods that we leave a battery to have electricity( basically just for lights).

.
asked 1 year, 4 months ago
by
Luciano88
on Amorphous Solar Panel - 7 Watt
+1point
1out of 1found this question helpful.
3 answers
Answers
answer 1
Wel-Bilt Expert
Two of these seven watt solar panels can be hooked up to a single battery. To be safe a charge controller should be used to prevent over charging.
answered 1 year, 4 months ago
by
WelBiltExpert13
+4points
4out of 4found this answer helpful.
answer 2
Yes I have 2 hooked in my house right now on a single battery. but im thing of going two 4 and see how it works.In full sun I get any where from 13.8 to 20.8 volts and that seams darn good to me.But I mite add another battery to get more amps.
answered 1 year, 4 months ago
by
Brinkman
 - Sterling,IL
-2points
0out of 2found this answer helpful.
answer 3
Yes, but what would work better is two batteries, hooked positive to positive, negative to negative, brought to a full charge, and THEN put a panel on each battery (the same as two on one battery).
The reason I suggest two batteries, is the deeper a battery is discharged, the more current it takes to bring it back up to a full charge. Adding a second battery will buffer the drain you put on your setup, allowing for a faster full recharge.
answered 1 year, 3 months ago
by
DemolitionMan
+7points
7out of 7found this answer helpful.
Question

Can I use this panel with battery still hooked up?

The battery in my travel trailer has a very small drain on it when in storage, mostly from the propane leak detector. Is it okay to use this panel while the battery is still hooked up or should I just disconnect the battery from the trailer?
asked 1 year, 4 months ago
by
Anonymous
on Amorphous Solar Panel - 7 Watt
0points
0out of 0found this question helpful.
3 answers
Answers
answer 1
Wel-Bilt Expert
This solar panel can be connected to the battery while it's still hooked up to the travel trailer. It will work for your application provided the battery drain from the trailer(including the propane leak detector) is minimal. This panel provides the battery with 7 watts per hour in ideal conditions(placed in direct sunlight, not cloudy).
answered 1 year, 4 months ago
by
WelBiltExpert11
+1point
1out of 1found this answer helpful.
answer 2
I have one hooked up to cover the drain on my battery for the exact same reason. The battery is never disconnected And I have no issues what so ever. In My instance I mounted a pipe flange on the tongue of the trailer. the panel on a painted and sealed piece of plywood, another flange centered on the back of the plywood, a 45 degree elbow on that flange and a eight foot pipe in between the panel and tongue (2 4 ft pieces and a coupler) . I painted the pipe, and replaced the clamps with rubber trailer type 2 conductor connectors to the battery cable that I already had set up for a maintenance charger, Been running this for four years without a hitch. (my panel DOES have a reverse polarity blocking diode, If the new ones don't they are easy to install, and can be bought for a couple bucks at radio shack as rectifier diodes, you will want something that will handle a minimum of 30 volts 15 amp, to handle any heat issues from sitting in the sun, NOT a small signal diode, other than that, there are no critical specifications, even a 1n9001 or similar would work but if put in the housing it would cook in a relatively short time
answered 1 year, 3 months ago
by
DemolitionMan
-1point
0out of 1found this answer helpful.
answer 3
There is no need to disconnect the battery for charging with this panel. It should keep the battery fully charged with no problem.
answered 3 months, 2 weeks ago
by
RRRancher
 - Texas
0points
0out of 0found this answer helpful.
Question

can the connecting wire be extended without affecting the charging?

Can a cigarett lighter type connector be added / used for charging?
 
Products related to my question
 
asked 2 years, 2 months ago
by
Anonymous
 - tampa
on Amorphous Solar Panel - 7 Watt
0points
0out of 0found this question helpful.
2 answers
Answers
answer 1
Wel-Bilt Expert
We do not recommend modifying this solar charger in any way.
answered 2 years, 2 months ago
by
WelBiltExpert29
+1point
1out of 1found this answer helpful.
answer 2
There are other choices if you are attempting to use it to keep your battery trickle charged while sitting. This will work however just a bit slower and you can extend the cable if needed.
There is another unit in the catalog that is better suited and comes with a wire and cigarette lighter/port plug on it already. I would use the 20 watt unit personally It can sit on your dash and plug directly into the cigarette lighter or power port. Just make sure your power port or lighter socket is hot with the ignition key in the off position. If it is not buy a dual power port outlet and pay an auto electrician twenty to thirty dollars to hook it into a 12 volt source. You can do the installation of the power port and let them do the hook up. Also it is recommended you use the 20 Watt unit with a charge controller.
answered 2 years, 1 month ago
by
joetheragman
 - Chula Juanna California
0points
0out of 0found this answer helpful.
Question

Would it produce enough watts or voltage to connect to an inverter to power a fan?

I am currently writing a green energy curriculum and am wondering if I would be able to use this solar panel to power a fan. Would it produce enough power? Is 7 Watts the maximum Wattage that it produces?
 
Products related to my question
 
asked 2 years, 1 month ago
by
Anonymous
on Amorphous Solar Panel - 7 Watt
+2points
2out of 2found this question helpful.
2 answers
Answers
answer 1
Wel-Bilt Expert
When in ideal sunshine, the panel will produce a maximum of 7 watts. The panel cannot be connected directly to an inverter or a fan. You would have to use this panel to charge a battery, then hook up an inverter to the battery, then plug the fan into the inverter. A small panel like this will work, but will not produce enough power to run the fan in real time. Depending on the size of the fan and how often you want to run it, you may need to charge the battery for a few days in order to run the fan for a short period. If you know the draw of the fan, and how often(hrs/day) you want to use it, call 1-800-221-0516 to talk to our staff to estimate your needs.
answered 2 years, 1 month ago
by
WelBiltExpert29
+1point
3out of 5found this answer helpful.
answer 2
It is more a matter of how long does this small unit take to charge a battery through a charge controller that you can find in this catalog. I would suggest a larger solar panel of say 45 Watts or so connected to a charge controller and the battery hooked to your inverter. When the battery is fully charged the fan most surely would run off the charge controller untill the voltage in the battery was reduced to a set amount and then the inverter would start beeping.
answered 2 years, 1 month ago
by
joetheragman
 - Chula Juanna
+1point
1out of 1found this answer helpful.
Question

IS the panel weatherproof and able to be mounted outdoors, or does it need to be mounted behind a window for weather protection?

asked 1 year, 11 months ago
by
Anonymous
on Amorphous Solar Panel - 7 Watt
+2points
2out of 2found this question helpful.
2 answers
Answers
answer 1
Wel-Bilt Expert
This solar panel is waterproof and can be mounted outdoors.
answered 1 year, 11 months ago
by
WelBiltExpert11
+7points
7out of 7found this answer helpful.
answer 2
I bought my first one in September 2014 and it is mounted on a pole outside without any protection. It has shown no water damage at all so far and we have had several inches of rain since, much of it a slow drizzling rain.
answered 3 months, 2 weeks ago
by
RRRancher
 - Texas
+2points
2out of 2found this answer helpful.
Question

can I chare two 12volt batteries at once

I would like to use this for my trolling motor, which is 24 volts.
I have two 12volt batteries wired together. Will this keep them charge or would I have to charge them one at a time. I understand if they were charged as one, the time would take longer.
asked 1 year, 11 months ago
by
Anonymous
on Amorphous Solar Panel - 7 Watt
-1point
0out of 1found this question helpful.
2 answers
Answers
answer 1
Wel-Bilt Expert
This Solar Panel provides 12 volts @ 583mAs, and is designed to keep a battery topped off. It cannot be connected to a 24 volt system.
answered 1 year, 11 months ago
by
WelBiltExpert13
0points
1out of 2found this answer helpful.
answer 2
no. this will only put out 12 volts, and would only bring your battery pair up to 12 volts total. What you SHOULD do is purchase TWO panels, and put one on each battery, making sure that you ensure the proper connections of positive to positive and negative to negative on the batteries.
answered 1 year, 3 months ago
by
DemolitionMan
+3points
3out of 3found this answer helpful.
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