Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Waveshare Solar Power Manager (C)Safety Cautions 1. Li ion and Li po batteries are quite unstable. They may cause fire, personal injury, or property damage, if they are not properly recharged or used. 2. Do not reversely connect the polarities when recharging or discharging the battery. Do not use inferior charger charging panel to recharge the battery. 3. Do not mix use old batteries with new ones, avoid using batteries of different brands. 4. When buying lithium battery, should
Safety Cautions1. Li-ion and Li-po batteries are quite unstable. They may cause fire, personal injury, or property damage, if they are not properly recharged or used.
2. Do not reversely connect the polarities when recharging or discharging the battery. Do not use inferior charger/charging panel to recharge the battery.
3. Do not mix use old batteries with new ones, avoid using batteries of different brands.
4. When buying lithium battery, should make sure the battery specification is compatible with the expansion board. Choose batteries from formal manufacturer, and ensure the batteries will work stably and safely by aging test.
5. Lithium batteries have limited cycle life, they will also deteriorate as time goes by. Should be replaced with new ones when the batteries reaching their max cycle life, or working over two years, whichever comes first.
6. Should be placed carefully and properly, keep it away from inflammables and explosives articles, away from children, avoid any safety accident caused by careless storage.
Features
The Solar Power Manager (C) is compatible with general 6V~24V solar panels. It can recharge the 18650 rechargeable Li-ion batteries through solar panel or USB TYPE-C connection, and provides 5V / 3A regulated output (with multi protocols support including PD/QC/FCP/PE/SFCP).
The module features MPPT (MAX Power Point Tracking) function and multi protection circuits, therefore, it is able to keep operating with high-efficiency, stability, and safety. It is suitable for solar powered, low-power IoT, and other environmental protection projects.
1. Support MPPT (MAX Power Point Tracking) function, MAX the efficiency of the solar panel
2. Flexible battery recharging: from solar panel or USB TYPE-C power adapter
3. Compatible with 6V~24V solar panels, DC-002 jack input or screw terminal input
4. Onboard MPPT SET switch, select the level closed to input level to improve recharging efficiency
5. Onboard aluminum electrolytic capacitor and SMD ceramic capacitor, reducing the ripple, stable performance
6. Embedded battery holder, supports 3x 18650 rechargeable Li-ion batteries
7. Several LED indicators, for monitoring the status of solar panel and battery
8. Multi protection circuits: over charge / over discharge / reverse-proof / over heat / over current, stable and safe to use
Specifications
1. Solar in: 6V ~ 24V (18V by default)
2. Recharging: Solar panel, power adapter, USB
3. Battery: 3 x 18650 Li-ion battery (Not included)
4. USB input: 5V (Type-C, with PD quick charge support)
5. 5V output: 5V / 3A (USB-out, Type-C)
6. Recharging cutoff voltage: 4.2V +/- 1%
7. Over discharge protection voltage: 3.0V +/- 1%
8. Solar panel recharging effeciency: ~78%
9. USB recharging effeciency: ~93%
10. Batteries boost out effeciency: ~92%
11. Case: Metal case
12. Size: 119.0 x 71.0 x 25.2mm
13. Package list:
- Solar Power Manager (C) x1
- Adapter x1
Specification:
| Package Weight |
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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
4.6 ★★★★★
Based on 332 reviews
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Product Reviews
★★★★★ 5
Vibrant Racer Back Tank !!!
Size: X-Small, Color: Hot Pink, Size: X-Small, Color: Hot Pink
I purchased this Danysu V Neck Racer Back Tank Top for Women Padded Ribbed Long Tank Fitted Basic Cami Tops to wear under my off-shoulder top for an upcoming 80’s dance party, and it works perfectly for what I needed! The bright pink color really pops and adds the perfect retro accent to my outfit. I intentionally ordered the XS because I did not want it to fit loose under my top, and it definitely gives a snug, fitted look. The ribbed material is soft and stretchy, and the built-in padding is a nice bonus. I would recommend sizing up if you plan to wear it alone or if you are curvier, as the XS runs very tight. However, for layering under another top as I did, it worked out exactly the way I wanted. Super cute, flattering, and great for layering or workouts!
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Reviewed in the United States on May 24, 2026
★★★★★ 5
My new Favourite Summer Tank Top - padded cup (no shelf bra!)
Size: X-Small, Color: Color Block Black, Size: X-Small, Color: Color Block Black
Cutest tank top, my new summer go-to. I was looking and searching high and low for a tank top which had padded cups without the shelf bra. Shelf bras are so uncomfortable with their elastic bands and are even worse in the summer, sweaty sun. I wanted something breathable, movable, and with just a bit of padding to cover the nipples and add the slightest big of shape. If you are large breasted these built in cups might not be the best for you, but as a smaller breasted lady these are perfect. The cups are not over the top bulky, but also they are not meant to really add "support" (for those who are looking for support this wouldn't be the tank for you. Think lightly padded!) The material is super soft and the length comes down to the hips. The tank doesn't ride up, so you're not always having to pull them down and adjust, and so you could wear them for both workouts or for casual summer evenings. I bought size XS and I am 5'1, 97 lbs. I was wondering if I should go to a size S because it wasn't clear by some of the reviews, but I'm glad I bought the XS because the shoulder strap is also the perfect length (not too baggy but also not super tight). Read the sizing chart before you buy - they are true to the size indicated on the sizing chart. Some have said theirs didn't come with padding, or the stitching was poor, but the ones I've received are totally fine. This tank is just plain-old comfortable any way you look at it. I'll be buying more colours!
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Reviewed in the United States on April 7, 2026
★★★★★ 4
Great workout tank
Size: Small, Color: Cocoa
Great workout tank with built-in padding. Fits true to size, is comfortable and soft that hugs your form. Only reason I’m giving 4 stars is because the pads do get shifted around during washes, which is typical but frustrating. I air dry and haven’t had any issues with shrinking either.
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Reviewed in the United States on March 4, 2026
★★★★★ 3
Cute but NOT supportive
Size: X-Large, Color: Floral Pink Rose, Size: X-Large, Color: Floral Pink Rose
These are NOT “workout” tanks offering support. They have a removable cup sewn into the front of the shirt, similar to a bathing suit. If you have small (or gloriously high) boobs and want a shirt to hide your nipples, this is great. If you want something to actually give support, this is NOT it. There is no band to provide support. So if you have large or low breasts, don’t even try. You’ll have to wear a bra with it unless you want your boobs hanging below the sewn in cups. That being said, the material is great. It’s nice and thick with lots of stretch. The cut is also adorable. And I LOVE all the colors. I wish it just had a supportive band!
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy & cute! But low support
Size: X-Large, Color: Ocean Depths
This tank is super comfortable and I LOVE the color. The built-in bra is a little weird; I thought it was sewn in backwards but apparently not. It has low/medium support, bigger chested folks may not like this. Im a 36D and its right on the line for support where I can't decide about wearing this in public. I sized up and am glad I did; it fits well! Im 5'7" and 165lbs for reference.
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Reviewed in the United States on April 29, 2026