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Description
USB - DC - Solar Lithium Ion-Polymer charger - v2NOTE: This product is only designed for use with solar panels sold at the Adafruit store. We cannot guarantee this will work with solar panels purchased elsewhere. Please purchase this kit and panels from Adafruit to ensure optimized functionality! A 2. 1mm adapter is also required to adapt a solar panel to the DC power jack. Make your projects to go green this summer with our specialized USB Solar Lithium Ion Polymer Battery charger! This charger is
NOTE: This product is only designed for use with solar panels sold at the Adafruit store. We cannot guarantee this will work with solar panels purchased elsewhere. Please purchase this kit and panels from Adafruit to ensure optimized functionality! A 2.1mm adapter is also required to adapt a solar panel to the DC power jack.
Make your projects to go green this summer with our specialized USB/Solar Lithium Ion Polymer Battery charger! This charger is a very unique design, perfect for outdoor projects, or DIY iPod chargers. We've spent over a year testing and tinkering with this charger to come up with a plug and play solution to charging batteries with the sun and we're really pleased with what we ended up with.
Easy to use! Pick up any of our many 3.7V/4.2V LiIon batteries, and a 6V solar panel. Plug the battery into the BATT port using a 2-pin JST cable and the solar panel into the DC jack using a 2.1mm terminal block adapter. Put the solar panel outside (and keep the battery out of the sun, it needs to be kept cool!) to start charging. You can power another project like a Mintyboost at the same time by connecting to the LOAD output port
Our carefully designed charger is designed specifically for solar charging, and will automatically draw the most current possible from the panel in any light condition!
Even thought it isn't a 'true' MPPT (max power point tracker), it has near-identical performance without the additional cost of a buck-converter. Our detailed tutorial on how to use this charger includes a design document explaining how it all works.
For use with Adafruit Lipoly/LiIon batteries only! Other batteries may have different voltage, chemistry, polarity or pinout.
Comes with an assembled charger board, a 2-pin JST cable that will fit into either the BATT or LOAD ports, and a large stabilization capacitor that must be installed in your finished project. Does not come with a Lipoly battery or solar panel but we do have tons available in the shop that work quite well. We have updated the design to be a little more compact, have nicer mounting holes, and a 2.1mm DC jack
Features
- 3.7V/4.2V Lithium Ion or Lithium Polymer battery charger
- Charge with 5-6V DC, USB or 6V solar panel!
- Too dark out? Use a USB mini-B cable or a 5V DC adapter
- Automatic charging current tracking for high efficiency use of any wattage solar panel
- Use any 6V solar panel
- Three color indicator LEDs - Power good, Charging and Done
- Low Battery Indicator (fixed at 3.1V) with LED output
- Set for 500mA max charge rate, can be adjusted from 50mA up to 1A by soldering in a resistor
- Will always draw the most current possible from a solar cell - up to the max charge rate!
- Smart load sharing automatically uses the input power when available, to keep battery from constantly charging/discharging
- Temperature monitoring of battery by soldering in a 10K NTC thermistor (not included) - suggested for outdoor projects where the battery may get hot (50°C) or cold (0°C).
- Board Dimensions: 41mm x 33mm x 2mm (1.6" x 1.3" x 0.08")
- Thickness with 2.1mm SMT Barrel Jack: 12.6mm / 0.5"
Documents
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
well worth the money
Size: X-Large, Color: Black
This suit was better than expected. The material was thick and durable, and it fit perfectly!
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Very nice suit, but too small
Size: X-Large, Color: Black
It's a very nice suit - but too small. Will purchase again in a larger size.
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Reviewed in the United States on June 1, 2026
★★★★★ 4
Good quality and cannot beat the value you get with a suit
Size: Medium, Color: Black
I recently purchased the WEEN CHARM Men's Suits Slim Fit for my son's homecoming and I must say, I am impressed with the quality and fit of this suit.
Firstly, the material used in this suit is of exceptional quality. The fabric feels soft and smooth, and it has a nice weight to it which gives it a luxurious feel. The suit doesn't feel cheap or flimsy at all.
The slim fit design is impeccable. It hugs my son's body in all the right places, giving him a sharp and stylish look. The suit is tailored to perfection and accentuates his physique beautifully.
I also appreciate the attention to detail in the craftsmanship. The stitching is neat and sturdy, and there were no loose threads or flaws that I could find. The suit looks like it was made with care and precision.
Additionally, the suit was surprisingly comfortable. My son didn't complain about any discomfort or restriction of movement throughout the evening, which is always a plus.
The only reason I haven't given it a five-star rating is because the suit did require some minor alterations for a perfect fit. Nonetheless, this is a small inconvenience considering the overall satisfaction we had with this purchase.
In conclusion, I highly recommend the WEEN CHARM Men's Suits Slim Fit. It is a stylish, well-made suit that will definitely make a statement at any formal event. My son looked dashing in it and received many compliments.
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Reviewed in the United States on July 8, 2023
★★★★★ 5
Fit like a glove and soft to the touch.
Size: Small, Color: Black
My son loved the suit. It was not itchy. The fabric was soft. He did not like the vest but it is because he normally wears baggy clothes. He did not want a slim fit suit but he ended feeling good in it. For the price you can't miss. He is 140 lbs and is 5'7". We used the sizing chart for reference and bought size small. The length and waist of the pants were perfect and the arms were just right.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Awesome value! Great fit!
Size: XX-Large, Color: Black
Complete men's suit for under $70!!! Crazy!! My husband is thrilled with this suit! We ordered a XXXL but it was a bit baggy. Ordered the double XL and it was perfect! Husband is 6'1, waist 38, broad chested. No adjustments or hemming needed! Love it!
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Reviewed in the United States on April 4, 2026