ALLPOWERS 2.5W 5V/500mAh Mini Encapsulated Solar Cell Epoxy Solar Panel DIY Battery Charger Kit for Battery Power 130x150mm (Solar Panel Only)

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Product Specifications

High-efficiency encapsulated solar panel, providing enough power for DIY
Solar panel kit with battery, power small motors or other loads; perfect devices for science project
Portable, compact & stylish size with solid attractive casing
UV treated surface and durable weatherproof PCB board
Package contents: 5V 500mAh 2.5W solar panels(one solar panel only)

Product Description

Color:130x150 “Your Satisfaction is our Highest Priority”, contact us firstly if you have any question

ALLPOWERS solar panel, maybe it is the best charger ALLPOWERS is a company in combination with solar and battery application design, development, production and sales. The ALLPOWERS power charger allows you to charge the external battery anywhere at any time. Get the ALLPOWERS battery pack now.

Use this solar panel to power a convenient appliance with free green energy from the sun. Technical Data * Size:130mm*150mm * Voltage: 5V * Current: 500mAh * Power: 2.5W * Conversion rate: 17% * Weight: 92g * Packgae:1 pieces solar panel

Standard Configuration 1. Backing: PCB 2. Protective film: PE

Warranty: One year product guarantee from ALLPOWERS

Product Reviews

Works as Advertised

Works great, outputs 5.33V/433Mah DC in direct sunlight. Have it wired into a usb step up transformer (http://www.amazon.com/gp/product/B00C93Z8JY/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1) in order to power a usb battery pack. Takes an absurdly long time to charge, but that’s my fault for trying to use one on its own when it should be two wired in parallel (433Mah as opposed to ~1Ah). If you’re going to try and power any form of usb powered device with this, get two (There’s a two pack available here: http://www.amazon.com/Allpowers-500mah-Charger-Panels-Battery/dp/B00H4MKD2M/ref=aag_m_pw_dp?ie=UTF8&m=A18M12GR6V2Z8F)Update: Bought a second panel. Wired in parallel, I’m getting 1.1 amps at 6 volts. A 75 cent 1N4004 diode from radioshack brought the voltage back down to 5v, and all is working well.

5.7 V in partly cloudy skies,charging Samsung tablet, works great! Will buy again.

Just got this, in good condition, be sure to remove plastic protective covering. Waiting on some other pieces but I got 5.7 volts in partly cloudy skies. Very pleased with the quality and looking forward to building out the rest of my project. I would recommend this for anyone looking for a reasonable priced solar project for small electronic projects.

Nice little solar cell

Bright shiny small solar cell. Well packed, with a clear protective film on the front that needs to be peeled off before you can actually use it.There are two solder pads on the back of the solar cell. I soldered half a USB cable to the pads so that I had a female USB to connect to. Easy to solder to, but be sure to fasten your leads securely with either tape or glue so they do not pull at the solder pads while in use.Yesterday morning in a moderate overcast I got about 0.3 W from the solar cell. This increased to about 2.25 W closer to noon when the sun broke through the clouds for a short period; that is much closer to the claimed power output than I expected. This morning, with a heavier overcast that threatened rain I got about 0.12 W.The output of the solar cell is very dependent on lighting conditions and your power draw. Open circuit voltage seems to be between 5 and 5.5 V, but that number doesn’t really matter. When actually pulling power from the solar cell, the output voltage drops significantly - I generally saw 3.5 to a little less than 5 V under load. You can control voltage by limiting load, but the best approach is to add a boost converter to maintain the required voltage under load. If you are powering a standard USB device (e.g. cell phone), a boost converter may be all you need; for more complicated applications you may need to add a battery and charging circuit to maintain continuous operation.

so far so good. i bought 1 and it was not enough …

so far so good. i bought 1 and it was not enough to power and charge my ESP8266-01 so i bought 2 more and that seems to be working out not really 100% sure i just hook it all up today but will test it out and see what happens

Used them for my project in an electrical engineering class …

Used them for my project in an electrical engineering class. In sunlight they output about 5V and 250 mA each, not 500.

Simple, Bad Was and durable

received product In a timely manner, everything was packed to ensure no possible damage. all you need is a soldering iron and you’re ready to start your DIY project.Made a solar tablet/battery pack charger for when I go camping, cheaper and can’t go wrong with learning a thing or two!

it works, nice performance

they work, connected them in series and have a constant 10.2-10.8 volt reading in my regulator at full sunlight and it dips to about 8v with some clouds, perfect for powering an arduino project.

I gotta give it 5 Stars!

It’d be great if these things could do more, but for the purpose these are nice and pretty efficient.I received the item and it was in perfect condition. The back has two little spots for smacking a Multimeter on it and measuring the output. I dragged it around the house and measured the different outputs. Just sitting in my living room (with very little natural light), I was able to get 2.5-3.5vDC pretty consistently. That’s nice. I put it in direct sunlight and it output 5+vDC. Nice!My plan is to create a self-sufficient lil’ charger for my portable devices. Let’s face it, it’d be nice to have that for any situation that requires this. Like the review that mentioned you’ll need 2 of these … yep, you’ll most-likely need 2 or more. I’m on it! Sure, I could purchase a solar powered charger, but that’s not what I want to do. Wanna build one myself. 20 bucks and I can swap out the pieces as needed or even add more … you get the point.Pretty straight forward if this is your plan. This lil’ guy is roughly 6”x5”. Link the two Solar cells (or more) together accordingly and (in my plan) connect it to a Cigarette Lighter to USB-style charger. Simply plug in your Mobile device and let it charge. Nothing difficult at all. Is it perfect? Of course not. Will it work in a pinch? That’s the goal. With some double-sided sticky tape, some light soldering and a Cigarette Adapter … You’re good to go.I’d definitely recommend and I plan on buying quite a few more of these and expanding my cute lil’ project. We should all begin doing so. Re-usable power.

Five Stars

this bad boy is powering my 50 inch tv and my small fridge. awesome product.

Seems to meet the specs, cosmetic flaws

This panel does seem to produce around 500 mA at 5V, which is pretty impressive for the small size.My only complaint is that my panel has a number of cosmetic flaws.

Happy with purchase

First purchase of a solar panel. I will be using it to power a small outside device. Unit seems well made and weather tight. Solder spots on the back for POS/NEG.