Top 10 recommendation usb portable charger solar
Finding the best usb portable charger solar suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Best usb portable charger solar
![[Upgraded] Poweradd Apollo 2 Solar Charger 12000mAh Portable Solar Panel Power Bank Waterproof/Shockproof/Dustproof Dual USB Port Solar Battery for Emergency Outdoor Camping Travel](https://images-na.ssl-images-amazon.com/images/I/51-5Btu8zPL.jpg)
1. BlitzWolf 15W Solar Charger Portable Dual USB Port for iPhone X 8 Plus 7 6 6s Plus, Samsung Galaxy S8 S7 S6 Edge, Android Powered Foldable Panel Water Resistant High-Efficiency SunPower Charger
Feature
[Highest Ever Sunpower Conversion] Compare to 15% or less conversion rate of some other solar chargers, this solar panel is 21.5%-23.5% efficiency, the highest ever you can see! Ultra lightweight (12.35 oz) and ultra compact (1.7ft x 0.95ft x 0.013 ft opened or 0.95ft x 0.52ft x 0.01ft folded).[Dual USB Powerports] 2A/15W for dual ports, intelligently detect your devices and deliver the highest possible with Power3S Tech, no worry about overcharging and overloading. The double-sided reversible USB A male plug to micro USB cable supports 5
[Automatic Restart] Don't worry whether the panel is out of solar power, the charger panel will automatically restart charging when it is illuminated again.
[Charges All Phone Models] Under our test with various phones, this solar panel is capable of charging all the phone models, including iPhone, Samsung, HTC, Sony, Nexus, HUAWEI, XiaoMi, etc. Ideal for outdoor camping, hiking or exploring.
[Lifetime Quality Care] BlitzWolf awards 18 months warranty and lifetime warmhearted consultancy to assure your long term enjoyment.
Description
Highest Ever Energy Conversion RateCompare to 15% or less conversion efficiency of sunpower, this solar panel is up to 21.5%-23.5%, the highest in the world!
Power3S Technology
Leading technology of BlitzWolf, which can detect the devices, to charge as fast as possible, while protecting the devices from overcharging, overloading and overheating. By now, this tech has applied to most of BlitzWolf products.
Lifetime Quality Care
18-month warranty; Lifetime dedicating consultancy.
Specifications:
Total Maximum Output 5V/2A
Power 15W
Opened Size 290*530*4 mm
Closed Size 290*160*20 mm
Weight 350g
Package Includes:
1 X 15W BlitzWolf? BW-L2 Solar Charger
1 X User Manual
1 X Warranty Card
BlitzWolf
Chasing the latest technology, BlitzWolf is full passions on combining useful crafts into one product, to create simple design with powerful internal.
2. Power Bank Solar Portable Charger 24000mAh - PLOCHY Solar Phone charger with 3 Fast Charging USB Port and Dual Input External Battery Pack for Android Phones and All Smartphones and More.
Feature
24000mAh Huge Capacity - It can fully charges an iPhone 9 times, a Samsung Galaxy S7 6 times, a 9.7-inch iPad Pro 2.2 times and other smartphones multiple times.Dual Input - No matter whichever cable you are carrying, you can recharge the power bank with either the attached micro-USB cable or your own cable.
Quick Charging Technology - Highest charge output through 3 USB ports (5V / 2.4A ,5V / 2.4A and 5V / 2.4A) providing enough power to charge three devices simultaneously,so you can share it with your family or friends.
Charge Anytime Under the Sun - Light and portable battery bank charges whenever it's sunny thanks to the wide solar panel. (Note: Please do not take solar as primary recharge source, as the charging speed will subject to sunlight intensity and panel conversion rate)
What You Get - PLOCHY Solar Charger 24000mAh, Micro USB Cable, User Guide and 24-month warranty and friendly customer service.
Description
Solar Charger 24000mAh PLOCHY External Portable Charger Power Bank
Instruction :
- Please overcharge 3 hours the battery pack at the first 5 times for better use experience.
- It is recommended to charge via faster way with 2A/2.4A wall charger.
- The solar function is designed for emergency use,not take it as the main power supply.
- It is Shockproof &Waterproof&Dustproof, But Normal environment would keep it working better.
- About the LED Light indicator: When Light flashing ,that means it is working.
- Flashing red light, the energy is about 0%--40%
- Flashing blue light, the energy is about 40%--80%
- Flashing white light, the energy is about 80%--100%.
- When white light is no longer Flashing that means energy is full charging.
- When the portable charger disconnects to device, it would turn off automatically.
Parameter:
Battery Type: Li-Polymer Battery
Capacity: 24000mAh
Output: 5V/2.4AProduct Dimension: 3.35 x 6.54 x 0.83 inches
Product Weight: 462 gram(almost 1 bl)
Solar Panel:Max 5V/200 mAh 1W
AC charging time: about 10-12 hours(with 5V/2A wall charger
Package Listing:
1 x 24 Months Warranty PLOCHY Solar Portable Charger
1 x Micro USB cable
1 x Instruction Manual
3. Hiluckey Solar Charger 25000mAh Portable Solar Power Bank Waterproof Battery Packs with Dual Ports Solar Phone Charger for iPhone, Samsung, iPad, etc
Feature
25000mAh High Capacity: Built-in high-quality 25000mAh lithium polymer battery pack, With solar charging function, you don't need to worry about running out of power, It can fully charge your iPhone, Samsung for 10+ times; iPad, Kindle for 4+ times.4 Times Solar Energy Conversion: With 4 foldable highly efficient solar panels converted solar power into battery energy fastly, it charges by solar with 5W power and 1A input current, which is 4 - 6 times faster than the other solar chargers which only has single panel.
2.1A Dual USB Ports: Dual USB ports offer 2.1A high speed charging and enable you to charge 2 devices simultaneously, Compatible with all phone models. Intelligently detects and matches the output current to protect it from over-current, over-voltage, over-heated and short circuit via built-in IC chip.
Design for Outdoor Activity---- It has 9 built-in bright Led lights can be used as emergency light with 3 modes (Normal /SOS /Strobe). Meanwhile, The ports are protected by cover, making them waterproof, shock and dust. Great choice for camping trips or other outdoor activities.
Best Service----30 days money back and 1 year guaranty, 24h-online customer service, please feel free to contact us for any question. What you get: Hiluckey 25000mAh Portable Solar Charger, a micro USB cable, User Manual.
4. Solar Charger RAVPower 15000mAh Outdoor Portable Charger Solar Power Bank Dual USB External Battery Pack Power Pack with Flashlight (IPX4 Waterproof, Dustproof, Solar Panel Charging, DC5V/2A Input)
Feature
Charge Anytime Under the Sun: Light and portable battery bank charges whenever it's sunny thanks to the wide solar panel. (Note: Please do not take solar as primary recharge source, as the charging speed will subject to sunlight intensity and panel conversion rate and it takes a week to obtain a full recharge when powering only with sunlight.)Solar or DC Input Charging: Convenient and practical with two recharge methods including solar power or a DC5V/2A input. Note: DC input is recommended for faster recharging as it takes only 8 -9 hours with a 2A/2.4A charger
15000mAh Capacity Charges Two Devices: Large capacity with two iSmart powered output ports (one 2.1A and one 1A port) to simultaneously charge two devices multiple times; can charge an iPhone 7 4.2 times, an iPhone 7 Plus 3 times, and the Galaxy S8 2.8 times
Reliable and Bright LED: Hold the power button for 3 seconds to activate / deactivate the handy and helpful LED light; includes dust and shock protection and built-in battery safeguards
3 Steps for Better Use: Do not charge through glass; charge only in strong sunlight; and do not leave the charger in your vehicle during summer as heat will affect the battery life
Description
Solar or DC Input ChargingIt doesnt just feature solar charging but an DC5V/2A input too. Not only is it a reliable way to charge on cloudy days, it takes just 8 -9 hours to completely recharge with a 2A/2.4A charger.
15000mAh Capacity Charges Two Devices
Enjoy a large 15000mAh capacity and two iSmart powered 2.1A ports that offer simultaneous charging. With this much power, you can charge an iPhone 7 4.2 times, an iPhone 7 Plus 3 times, and the Galaxy S8 2.8 times.
Reliable and Bright LED
The built-in LED light serves as a convenient solution in case you need a light at night; simply hold the power button for 3 seconds to activate / deactivate whenever you need it. The design includes dust and shock protection, as well as built-in overcharge and short circuit safeguards.
3 Steps for Better Use
1. Do not charge through a glass surface (e.g. a window).
2. Please charge in strong sunlight. Light can be detected in cloudy or indoor environments, but it is not enough to recharge the unit.
3. Do not leave in your vehicle during summer as the heat will affect the battery life.
Specification:
Battery Type: Li-Polymer Battery
Capacity: 15000mAh
Input: DC 5V/ 2A
USB A1: 5V/ 1A, USB A2: 5V/ 2.1A
Solar Panel: 1W/250mA
Note:
1. Please do not take solar as primary recharge source, as the charging speed will subject to sunlight intensity and panel conversion rate and it takes a week to obtain a full recharge when powering only with sunlight.
2. To enjoy the faster 2A input, please recharge with a 2A and above charger and the original data / charging cable.
3. The red LED indicator turns on indicating it's recharging via solar panel.
What's in the Box:
- 1 x RAVPower Solar Powered Charger
- 2 x USB to Micro USB cables (Lightning cable is not included)
- 1 x User Guide
5. Solar Charger RAVPower 25000mAh Outdoor Portable Charger with Micro USB & USB C Inputs, Quick Charge Solar Power Bank with 3 Outputs, External Battery Pack with Flashlight - Shock, Dust & Waterproof
Feature
Friendly Reminder: To enjoy the faster 2A input, please recharge with a 2A and above charger and the original data/charging cable (NOT included). Solar battery charger can recharge via power outlet or sunlight. It normally takes 85 hours to obtain a full recharge when the input current reaches 300mAh max in direct sunlight.Speedier recharge with Dual inputs: connect both Micro USB & USB-C ports simultaneously and refill the solar panel charger even faster
25000Mah & 3 outputs: powers three smartphones or tablets at once up to 5V/6.4a with quick charge, USB-C, and ismart charging ports; perfect addition to your outdoor camping Gear
Built for outdoors: rugged construction is dust, shock and waterproof; LED emergency light works in strong, probe, and SOS modes; and attach the solar battery Pack with integrated hanging ring
What you get: 18 + 12 month warranty, RAVPower solar powered charger, Micro USB charging cable, and user guide
Description
Notes:(1) To enjoy the faster 2A input, please recharge with a 2A and above charger and the original data/charging cable.
(2) The green LED indicator turns on indicating it's recharging via the solar panel.
RAVPower - Stay Powered
RAVPower is the one-stop power charging solution for millions of customers from around the world. Our wide variety of portable chargers ranges from high-capacity external battery packs to Qualcomm Quick Charge-powered travel-friendly USB chargers to breakthrough fast wireless charging pads.
Technical Specifications
Capacity: 25,000mAh
Input:
QC Micro USB: DC 5V/2A, 9V/2A, 12V/1.5A Max
USB-C: DC 5V / 3A Max
QC Micro USB + USB-C: DC 5V/4A Max
Output:
Quick Charge: DC 5V ~ 6.5V/3A, 6.5 ~ 9V/2A, 9 ~ 12V/1.5A Max
USB-C: DC 5V/3A Max
iSmart: DC 5V / 2.4A Max
Solar Panel: 5V/300mA Max
Charging Capacity: iPhone 8: 9.3 times Samsung Galaxy S8: 5.6 times iPad mini 4: 3.3 times
What's in the Box:
1 x RAVPower Solar Charger
1 x Micro USB to USB-C Adapter
2 x Micro-USB Charging Cable
1 x Warranty Card
1 x User Guide
6. Foxelli Dual USB Solar Charger 10W - Foldable Solar Panel Phone Charger for iPhone X, 8, 7, 6s, iPad & Android, Galaxy S8, S7, S6, S5, Edge & More, Portable Solar Power Charger for Camping & Outdoors
Feature
FAST & EFFICIENT CHARGING: Polycrystalline cells provide this solar panel charger with enough power to charge 2 devices at the same time! Smart charging technology recognizes the input needed for a connected device and distributes current output accordingly, delivering up to 1.85A in total and cutting down on total charging time.WIDE COMPATIBILITY: Use this solar phone battery charger with any USB powered device with 5V DC input voltage. Compatible with iPhone X, 8, 7, 6s, iPad, Samsung Galaxy S8, S7, S6, S5, Edge, Note, mini, Nexus, LG, HTC, GoPro, Kindle and other electronic devices, including power banks of various capacity. It's also the perfect backup in case of a power outage.
PORTABLE & LIGHTWEIGHT: You can easily take this charger with you on any outdoor adventure! It weighs only 1.23 lbs. and is ultra-thin (1.2" folded). It's ideal to use while backpacking, hiking, camping, kayaking & other outdoor activities. Features 11 built-in loops and 2 carabiners to easily attach to your backpack, tent or trees, and has a convenient pocket for the device being charged. No matter where you go, you can keep all your devices fully charged.
WEATHER-PROOF & DURABLE: Don't worry if those clouds could turn into rain - our solar panels are shielded with industrial-strength PET polymer and sewn into rugged polyester canvas, making it highly resistant to water and dust. Its top-of-the-line construction provides maximum durability and is specially designed to supply you with free energy for years to come, and will never let you down.
RISK-FREE PURCHASE: Don't worry about missing Amazon's 30-day return window! We Offer a 120-day, no questions asked, money back guarantee with our One Year Warranty. If You Don't Like it - FOR WHATEVER REASON - we'll give you your money back. Buy with confidence!
Description
Love the Great Outdoors but Dislike the Lack of Power Outlets?
Stay Safe and Secure While Keeping All Your Electronic Devices Fully Charged while Camping, Backpacking and Hiking with Foxelli Solar Panel Phone Charger!
This solar powered charger is a must-have for any outdoor adventure. Charge all your USB powered devices with this dependable, convenient and highly portable Solar Charger. It will keep you connected with your family, friends and information on the long camping trips!
- Converts up to 16% of solar energy into ready-to-go power for your USB devices
- Charges up to two devices simultaneously
- Automatically detects input needed for connected devices and adjusts output accordingly to provide the right amount of power
- Charges devices quicker
- Delivers up to 1.85A in total
- Compact, lightweight design
- Multiple loops & 2 carabiners make it easy to attach to backpack, tent or trees
- Durable, weather-proof design, so you don't have to worry if those clouds could turn into rain
- Unfolded size: 24.6x8.7x0.6
- Folded size: 8.7x6.1x1.2
- Weight: 1.23 lbs.
Never be caught with dead phone battery ever again! Stay powered up, wherever you are, with this handy solar power charger. Its also beneficial to keep it on-hand in case of power outages.
Foxelli Solar Panel Phone Chargers are Selling Out Fast. Buy Yours Now RISK-FREE While Stock is Still In!
7. Solar Charger 8000mAh, BESWILL 3 USB Ports and 21 LED light Portable Solar External Battery Power Bank Phone Charger for iPhone, iPad, Samsung, Android and other Smart Devices
Feature
High Capacity: built-in 8000mAh battery, it's about enough to charge an iPhone 3.5 times over! Five pilot lamps indicate the status of power bank timelySuper bright Led Emergency Flashlight: 21 LED light on the back side of the power bankgreat illumination. (Long press the power button to turn the light on) Great choice for camping trips or other outdoor activities, especially in dark situations or at night, light up your outdoor life
Two charging options: you can use the included micro USB cable and plug it in or you can put the charger in direct sunlight to charge, blue pilot lamp on while charging via usb cable, green pilot lamp on while charging via sunlight
3 USB output charging ports and Charge Fast: allow you to charge 3 digital devices simultaneously, also, it charges your phone very fast,share power with your friends
Other information: Made of ABS material, fashion and decent. Includes a hook, charge the solar charger by sunlight when on a trip with your backpack
Description
Solar Charger 8000mAh, BESWILL 3 USB Ports and 21 LED light Portable Solar External Battery Power Bank Phone Charger for iPhone, iPad, Samsung, Android and other Smart DevicesFeatures:
1. 8000mAh high capacity Li-polymer battery with a hook
2. Super bright 21 led flashlight
3. 3 USB charging ports, it can charge 3 digital device at the same time
4. Portable and fashion design
Specifications:
Battery type: Li-polymer battery
Capacity: 8000MAH
Output: 5V 1A/5V 2A/5V 2A
Input: DC 5V2A
Housing material: ABS material
Package Includes:
1*8000mAh solar power bank
1*USB cable
1*Hanger
1*User manual
Note:
1. The efficiency of energy transformation from solar to electric energy is really limited, it may take a long time to fully charge the solar charger due to the sunlight intensity, local weather and solar panel conversion rate, so we suggest you recharge it via wall charger/outlet before your travel, hiking or other outdoor activities
Please Do Not take the solar power as the main power source, it's only as a backup. In daily life, we highly recommend that charge it via wall outlet.
2. It is water-resistant, but should never immerse it in water or any other liquid
3. For your safety, please DO NOT leave the power bank in your car for solar charging or others, in case of high temperature and avoid crashing. Do not make charge while charging itself
8. [Upgraded] Poweradd Apollo 2 Solar Charger 12000mAh Portable Solar Panel Power Bank Waterproof/Shockproof/Dustproof Dual USB Port Solar Battery for Emergency Outdoor Camping Travel
Feature
Upgraded Solar Charger - The new Apollo 2 delivers its fastest charging speed up to 2.4A per port and the maximum output of dual output is 3.4 amps; simultaneously we have greatly improved solar charging efficiency which delivers the charging speed up to 5V/330mAh theoretically.Sufficient Power Supply - 12000mAh power bank adds 4.5 charges to an iPhone 6s, or 3 charges to a Samsung Galaxy S5, even one and a half charge to an iPad Mini.
Outdoor Compact Design - The housing is built-with IPX7 waterproof material which ensures it works even in rainy days, at the same time it is shockproof as well as dust-proof, the included hook make it easy to be hang on your backpack.
Adjustable LED Flashlight - Built-in dual LED lights features 3 light modes, short press the button to switch the mode you'd like, the SOS function is a great helper in an emergency.
What You Get - Poweradd Apollo x 1, Micro USB Cable x 1, Hook x 1, Feedback Card x 1, User Manual x 1; Poweradd offers 24-Month limited product warranty and friendly customer support.
9. BW DISTRIBUTORS SOLAR PANEL CHARGER - SPC16k 16000 mAh Power Bank -Waterproof, Dual USB, Flashlight - Lightweight & Compact - For Your iPhone, Android, Tablet. GoPro & More. Outdoor Off Grid Charging
Feature
TOUGH AS NAILS. The SPC16k solar USB charger is rated IP67. This means the portable battery pack is nearly indestructible. This rating qualifies the SPC16k as being waterproof and dustproof. The SPC16k solar charger can withstand being under 3 feet of water for 30 minutes and still properly function. As an added bonus, the unit is also shockproof having been drop tested from 8 feet. You can have full confidence that the SPC16k can be taken into any type of environment and it will perform.POWER WHEN AND WHERE YOU NEED IT! Electronics always pick the worst times to need charged. When we're away from electricity. Perhaps you're planning on being off the grid for a long period of time on a hiking or camping trip or a day at the beach. No worries, the SPC16k solar phone charger has you covered. The large 16,000 mAh battery can charge your device multiple times. The solar panel allows you to extend the time between traditional charging. The SPC16k solar charger for off the grid power.
SUPER FUNCTIONAL. The SPC16k cell phone solar charger comes with dual USB ports. One provides a 5V/1A charge. This works best for phones, Bluetooth devices and MP3/MP4 players. The other port provides a 5V/2.4A charge which is suitable for tablets and larger devices. The SPC16k solar panel charger also comes with 4 high powered LED lamps. The lamps provide 3 in 1 functionality. Hit the power button once and they are a flashlight, a second time and they strobe, one more time and they flash SOS.
EASY AS 123 TO USE. The SPC16k solar battery charger is very easy to use. It comes with a USB-to-micro USB cable. To charge your electronics, plug the USB end into the SPC16k, the micro USB into your device and hit the power button on the SPC16k. Need to charge the SPC16k? Just flip the cable. Insert the micro-USB into the SPC16k and the USB end into a PC or a USB wall charger. The SPC16k will charge devices that do not have a micro USB interface. as long as one end of the cable is a USB.
BUY WITH CONFIDENCE: At BW Distributors we are committed to providing you, our customer, with a delightful customer service experience. Our goal is to have you be 100% satisfied with your purchase of the SPC16k solar panel charger. Should an issue occur know that we will make it right with our No Questions Asked 18 Month Warranty!
Description
The SPC16k Solar Power Charger- Solar Power For When You Are Off The Grid Or The Grid Is Off
A Lightweight and Durable Portable Solar Power Bank to Charge Your Electronics
Package Contents
- One SPC16k solar charger for cell phones and electronics
- One USB-to-micro USB cable
- One carabiner
- Instruction Manual
Helpful Hints
- As with all products of this type, the Solar charging capability is not meant to be the primary charging mechanism for the battery. The solar panel is designed to extend the period of time between charging fully via a USB port
- Do not leave the unit in an enclosed space such as a car. Temperatures over 113 degrees F can damage the unit.
- It takes 12-14 hours to charge the SPC16k from an empty/low status using a USB charger. It's a big battery!
- The SPC16k will arrive needing a charge. Changes in shipping regulations no longer allow for Li-Polymer batteries to be sent fully charged.
People who use the SPC16k love the convenience and flexibility it provides. The long lasting battery can be re-charged between 500-800 times. Our quality manufacturing allows BW Distributors to offer you a 2 year, no questions asked warranty. Simply stated, the SPC16k is the premiere solar power pack available on the market. The SPC16k's combination of battery storage, size, weight, and durability are unmatched. You can buy with confidence!
Don't miss out on our special pricing for ourSPC16k Launch Sale. This pricing is for a limited time only. Get yours now
10. Ayyie Solar Charger,10000mAh Solar Power Bank Portable External Backup Battery Pack Dual USB Solar Phone Charger with 2LED Light Carabiner and Compass for Your Smartphones and More (Orange)
Feature
Portable solar charger: water-resistant, shock-resistant and dust proof solar phone charger, featured with compass and 2LED flashlight. Awesome for outside activities such as camping, hiking and other emergency use. Made of durable and reliable ABS+PC+Silicone material, solar power bank comes with carabiner and compass, it provide more convenience in your daily or in your trip.Built with Dual USB : 5V/1A, 5V/2.1A outputs are available for most digital equipment, 2.1A port for iPad/Tablets, 1A ports for phone/Bluetooth or other 5V USB supported devices. Automatic Smart Identification, it's more convenient and practical.
Kindly Reminder: The solar feature just can be regarded as "an emergency back-up", and it's a little difficult for such portable size to always produce the high-power under the sun. If the power bank can be charged with the DC adapters through the outlet sometimes, then charged by the sunlight, that would be better. And it will cost nearly 100 hours to get the charger full charged by the pure sunlight.
Solar battery charger with solar panel can recharge by solar or outlet. But please do not take solar as main power source as it mainly for topping off. It's subject to sunlight intensity and panel conversion rate, which may take long time to charge.
Five pilot lamps indicate the status of solar power bank timely. When charging the power bank by the solar panel, the green indicator will on, otherwise the blue indicator when USB charging.Kind Note: In order to fully activate the battery, please charge it via outlet or computer for 10 hours at least at the first 2-3 uses.
Description
compass operation:Please put the compass flat on the floor for the accuracy, any tilt would affect its direction.
flashlight operation:
1.Please kindly follow our steps to use SOS and strobe mode.
2. Long press the side button, two LED light will lit on.
3.Continue to shortly press the side button, it will enter into SOS mode. More once, it will enter into flashing or storbe.Next short press will turn off the charger.
Features:
Battery type: Li-polymer battery
Solar power: Single crystal 1.5W
Application type: commonly used
material: ABS+PC+ Silicone
Capacity: 10000mAh
Input: DC 5V/1.0A
Output: DC 5V/1A DC 5V/2.1A
charging time: 12h
Specification:
Product Dimensions: 5.47*2.95*0.79in
Package Size: 7.76*4.72*1.38in
Product Weight: 9.21oz
Package weight: 11.99oz
Packing List:
1* Solar Power Bank (a compass adhered to the back of the power bank)
1*Hanger
1* USB Charging Cable
1* Manual
Kind note:
1.In order to fully activate the battery, please charge it via outlet or computer for 10 hours at least at the first 2-3 uses.
2.Fully charging by outlet takes approximately 10 hours. Do not charge it all day nor over voltage.
3. For safety, DO NOT leave the power bank charging in car in case of high temperature and avoid crashing. Do not make charge while charging itself.
4. The energy transformation from solar to electricity is rather slow and the solar charging speed is subject to sunlight intensity and panel conversion rate. In daily life, we highly recommend charge it via wall outlet.
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