【High Efficiency】The 100 watt solar panels are constructive of 100% EL-tested Grade A+ Monocrystalline solar cells to ensure the highest power conversion efficiency and extended long lifespan. Utilization of advanced PERC cells to deliver an excellent cell efficiency of 22%.
【Intelligent 20A MPPT Controller】Package included an intelligent 20amp MPPT solar charge controller which delivers high tracking efficiency of up to 99% and peak conversion efficiency of 98% and improved energy harvest by up to 30% compared to the PWM charge controller. 3 stages charging to ensure charging efficiency and safety.
【Enhanced Performance】Advanced encapsulation material with multi-layered sheet laminations protects cells from physical damage and distortion, providing a long service life. Increase the cell receiving surface while reducing current and resistance loss with a thinner ribbon design.
【Full Protections】The MPPT solar charge controller built-in multiple protections to safeguard your battery rapidly, efficiently and safely charged to 100%. It is compatible with multiple 12v/24v batteries like Deep Cycle Sealed (AGM), Gel, Flooded, Sealed, Lead-acid and Lifepo4 Lithium batteries.
【Widely Application】Allto Solar 100 watt 12 volt solar panel kit includes all the necessary solar kits for building a new system. It is really great for off-grid application, car, RVs, cabins, boats, marines, shed, cabin, gate opener, gates, camping, and watering, work great for back-up power and remote power use.
【Ready to Install 】 Pre-drilled holes on the back of the solar panels help fast and secure mounting. Really a ready to use 100w solar starter kit. Package includes 100 watts 12 Volt solar panel, 12V/24V mppt charge controller, one cable with terminal of MC4 for solar panel and one cable with terminal of M8 O-ring for battery charging connection, easy to fix and install.
Additional information
Brand
Allto Solar
Material
Monocrystalline Silicon
Efficiency
High Efficiency
Style
20A MPPT Controller + 100W Solar Panel
Connector Type
MC4
Included Components
100W Solar Panel, 20A MPPT Solar Charge Controller, 2*Extension Cable, 1*Temperature Sensor
AC Adapter Current
20 Amps
Maximum Voltage
12 Volts
Maximum Power
100 Watts
Product Dimensions
41.3"L x 20.7"W x 1.18"H
Item Weight
18.26 pounds
Manufacturer
Allto Solar
Country of Origin
China
Item model number
AS-100W-M-20A
10 reviews for Allto Solar 100 Watt 12 Volt Solar Panel Kit, 100W 12V High Efficiency Monocrystalline Solar Panel + 20A MPPT Charge Controller + Extension Cable…
Rated 5 out of 5
Amazon Customer –
Worked fine for 9 months then the charge controller melted and caught fire. It was in the front box on my dump trailer so it didn’t get wet or anything. Luckily it didn’t burn anything else. Would not recommend now with that liability. EDIT they sent a new one hoping for good things!
Rated 1 out of 5
Gary –
The item does not work. Control panel doesnt work. Zero power.
Rated 5 out of 5
Ronin –
This is a real 20W charging panel, and these MPPT charge controllers are finally smart and only turn on if polarity correct, how many controller simply release the magic smoke if reversed.
The only down side of the panel is it need full sun NO SHADOWS, but if a cloud passes over head yes you will loose power but once the sky is clear the system just reboots and starts charging again.
excellent power output, it is producing 3x what my “25” watt harbor freight (THUNDERBOLT) panel does, but again because of the cell type amorphous the harbor works better at non perpendicular angles and diffuse light (aka fog early morning) etc. etc.
Simply put if you need 12V 10A battery charger/maintainer and you have clear access to clear sky’s and you can install at close to the optimum angle this panel and controller combo are the best.
If you only have a partially covered of off angle installation then pick up the controller only and then a CIGS or amorphous type (lower peak but wider range of performance) solar panel.
I gave 5 stars for tech support because it simply is not needed. hook up battery or panel first and just keep flipping polarity until you see the battery charging. no more multimeters and risk of magic smoke if not hooked up “correctly” the first time.
Yes if you don’t have a small collection of SAE Polarity Reverse Adapter then get some it seems SAE 2 pole products don’t really have an universal standard and the (SAE Polarity Reverse Adapter Connectors) are well worth having on hand if you want to do any system design or use other panels regulators or clamps. in fact I found I needed to use one reverser to use the included battery clamps (when used directly without the regulator) for why see below. (warning not interesting to most folks)
Most folks are concerned with efficiency but understand these self powered regulators consumes power. If you have excess capacity panels, small actual battery requirements or long term unmonitored situations then a regulator is highly recommended. Most folks have often the bare minimum panel aka real generation capacity (which we all know then suffers from environmental factors). As “most” new cars have some parasitic drain each night and as the title states these small panels are really just maintainers. unless you have a small car battery (or a motorcycle) and/or it is brand new then chance of over charging in a single day is minimal. I was doing experiments to see if a small panel 5-10 watt size (.2-.4 Ah) could even hold a 14.4 v charge on a brand new just topped off battery, the answer is no. With this real 20W (.9-1.2 Ah) kit I was able to push the holding voltage up to 14.4 so given enough time it does require a regulator
As far as charging it seems we need to get in the area of (actual measured) 40W-60W (3-4 Ah actual amps) systems Minimum to actually charge a very very new class 49 truck battery measuring 12.5v in the morning (different from unit from above test) both size 49 to 14.4 by the end of one day. This makes sense when you consider that a class 49 battery has about 100 Amp hours stored when full. From there to find how long it will take to charge it is simple math, take the of number of amp hours needed to charge to full divided by actual amp hours your system produces, this will tell you how long it will take. Remember the sun only shines so long every day and no battery is a perfect storage device so in low power systems a regulator may not even be needed just for maintenance. Also remimber Chinese watts are not real measured watts (except for this one) If your building an off grid power system then you need to plan to “charge” and not just maintain a charged battery.
So the rule of thumb holds that true .8 – 1.5 Ah chargers are really maintainers and 4+ Ah chargers can actual make up for some usage and loss.
So yes this is a great regulator because of a bunch of failsafe design features that prevent magic smoke from appearing plus when operating it provides current voltage readout plus an amperage rate which most regulators do not.
Rated 5 out of 5
Ronin –
When I first installed this solar panel to my shed and connected the MPPT charge controller to my battery everything was working great. I was getting 80-90 watts charging in good sunlight conditions. But a few days ago I noticed the lights on the charge controller were flashing in sequence 25%-50%-75%-100% over and over. It was perfect conditions for solar charging but still nothing was going to my battery which had dropped to less than 12v SOC. I disconnected the charge controller and connected the panel lead straight into my Bluetti power station. The panel was producing 88+ watts going into the Bluetti. So, the panel works great, but the charge controller is junk. UPDATE: The seller reached out to me and made things right. After a couple of emails to determine the issue, the seller sent a new charge controller quickly. My system is rocking and rolling again. SUPER customer service.
Rated 5 out of 5
Amazon Customer –
Seems to work well will get more if I have a further need
Rated 4 out of 5
Ronald Mendleski –
Be aware, the solar panel does not come with mounting hardware. I bought the 50 Watt panel. I have ordered the specific tilting mounting bracket recommended by the manufacturer:
I will add further input on the panel after I have had a chance to mount it and try it out.
Rated 4 out of 5
hitpure –
So far I like it ! Will see if it holds up
Rated 5 out of 5
Suzy-Q –
The panel, charge controller, and cables arrived in one box. I unpacked and read the easy to follow instruction. I mounted the panel on the roof of my sunroom. The charge controller, I mounted next to my electrical panel on my travel trailer wall. I connected the wires to my Duralast battery with marine battery terminals. Immediately the charge controller indicated the type of battery. Next I attached the panel leads with an inline fuse to the charge controller. Again, the charge controller showed the panel connection, that the input from the panel was charging the battery. With a few hours, the battery was fully charged and the charge controller showed the incoming amps, volts, charge level, etc. It was all automatic. Last I attached a inverter, to the battery and the inverter is powering a large fan and LED lights in the travel trailer. I’m very happy with the simple installation and output performance of the panel and charge controller.
Rated 4 out of 5
Ronald Mendleski –
My pickup truck has a short somewhere that I can’t find that drain’s the battery down. since I’ve been using this I always have battery with enough juice to start it.
Amazon Customer –
Worked fine for 9 months then the charge controller melted and caught fire. It was in the front box on my dump trailer so it didn’t get wet or anything. Luckily it didn’t burn anything else. Would not recommend now with that liability. EDIT they sent a new one hoping for good things!
Gary –
The item does not work. Control panel doesnt work. Zero power.
Ronin –
This is a real 20W charging panel, and these MPPT charge controllers are finally smart and only turn on if polarity correct, how many controller simply release the magic smoke if reversed.
The only down side of the panel is it need full sun NO SHADOWS, but if a cloud passes over head yes you will loose power but once the sky is clear the system just reboots and starts charging again.
excellent power output, it is producing 3x what my “25” watt harbor freight (THUNDERBOLT) panel does, but again because of the cell type amorphous the harbor works better at non perpendicular angles and diffuse light (aka fog early morning) etc. etc.
Simply put if you need 12V 10A battery charger/maintainer and you have clear access to clear sky’s and you can install at close to the optimum angle this panel and controller combo are the best.
If you only have a partially covered of off angle installation then pick up the controller only and then a CIGS or amorphous type (lower peak but wider range of performance) solar panel.
I gave 5 stars for tech support because it simply is not needed. hook up battery or panel first and just keep flipping polarity until you see the battery charging. no more multimeters and risk of magic smoke if not hooked up “correctly” the first time.
Yes if you don’t have a small collection of SAE Polarity Reverse Adapter then get some it seems SAE 2 pole products don’t really have an universal standard and the (SAE Polarity Reverse Adapter Connectors) are well worth having on hand if you want to do any system design or use other panels regulators or clamps. in fact I found I needed to use one reverser to use the included battery clamps (when used directly without the regulator) for why see below. (warning not interesting to most folks)
Most folks are concerned with efficiency but understand these self powered regulators consumes power. If you have excess capacity panels, small actual battery requirements or long term unmonitored situations then a regulator is highly recommended. Most folks have often the bare minimum panel aka real generation capacity (which we all know then suffers from environmental factors). As “most” new cars have some parasitic drain each night and as the title states these small panels are really just maintainers. unless you have a small car battery (or a motorcycle) and/or it is brand new then chance of over charging in a single day is minimal. I was doing experiments to see if a small panel 5-10 watt size (.2-.4 Ah) could even hold a 14.4 v charge on a brand new just topped off battery, the answer is no. With this real 20W (.9-1.2 Ah) kit I was able to push the holding voltage up to 14.4 so given enough time it does require a regulator
As far as charging it seems we need to get in the area of (actual measured) 40W-60W (3-4 Ah actual amps) systems Minimum to actually charge a very very new class 49 truck battery measuring 12.5v in the morning (different from unit from above test) both size 49 to 14.4 by the end of one day. This makes sense when you consider that a class 49 battery has about 100 Amp hours stored when full. From there to find how long it will take to charge it is simple math, take the of number of amp hours needed to charge to full divided by actual amp hours your system produces, this will tell you how long it will take.
Remember the sun only shines so long every day and no battery is a perfect storage device so in low power systems a regulator may not even be needed just for maintenance. Also remimber Chinese watts are not real measured watts (except for this one) If your building an off grid power system then you need to plan to “charge” and not just maintain a charged battery.
So the rule of thumb holds that true .8 – 1.5 Ah chargers are really maintainers and 4+ Ah chargers can actual make up for some usage and loss.
So yes this is a great regulator because of a bunch of failsafe design features that prevent magic smoke from appearing plus when operating it provides current voltage readout plus an amperage rate which most regulators do not.
Ronin –
When I first installed this solar panel to my shed and connected the MPPT charge controller to my battery everything was working great. I was getting 80-90 watts charging in good sunlight conditions. But a few days ago I noticed the lights on the charge controller were flashing in sequence 25%-50%-75%-100% over and over. It was perfect conditions for solar charging but still nothing was going to my battery which had dropped to less than 12v SOC. I disconnected the charge controller and connected the panel lead straight into my Bluetti power station. The panel was producing 88+ watts going into the Bluetti. So, the panel works great, but the charge controller is junk.
UPDATE: The seller reached out to me and made things right. After a couple of emails to determine the issue, the seller sent a new charge controller quickly. My system is rocking and rolling again.
SUPER customer service.
Amazon Customer –
Seems to work well will get more if I have a further need
Ronald Mendleski –
Be aware, the solar panel does not come with mounting hardware. I bought the 50 Watt panel. I have ordered the specific tilting mounting bracket recommended by the manufacturer:
https://www.amazon.com/gp/product/B09SWPPNL9/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
I will add further input on the panel after I have had a chance to mount it and try it out.
hitpure –
So far I like it ! Will see if it holds up
Suzy-Q –
The panel, charge controller, and cables arrived in one box. I unpacked and read the easy to follow instruction. I mounted the panel on the roof of my sunroom. The charge controller, I mounted next to my electrical panel on my travel trailer wall. I connected the wires to my Duralast battery with marine battery terminals. Immediately the charge controller indicated the type of battery. Next I attached the panel leads with an inline fuse to the charge controller. Again, the charge controller showed the panel connection, that the input from the panel was charging the battery. With a few hours, the battery was fully charged and the charge controller showed the incoming amps, volts, charge level, etc. It was all automatic. Last I attached a inverter, to the battery and the inverter is powering a large fan and LED lights in the travel trailer. I’m very happy with the simple installation and output performance of the panel and charge controller.
Ronald Mendleski –
My pickup truck has a short somewhere that I can’t find that drain’s the battery down. since I’ve been using this I always have battery with enough juice to start it.
Matt –
awesome