Look around yourself! What do you see and feel about your surroundings? What is the one thing that comes to your mind when you look around yourself? Isn’t the word “Pollution” coming to your mind at the very first instant? Are you also thinking about the same thing we are worried about? The world has been trapped in the miasma of pollution where human beings are desperate enough to find alternatives to suffice their interests causing no pollution. The need for the replacement of non-renewable sources of energy with renewable sources of energy has been on the rise.
Amidst such situations, the best way to utilize renewable sources of energy in your everyday life is utilizing solar energy as a battery charger. The Solar battery Charger can be an excellent choice. So, We know you are here to know about it and find out the exact Solar battery charger you can buy. So, let us start!
What to Look For in a “Solar Battery Charger”
- Efficacy of the device – If you want to choose the best Solar battery charger then consider the amount of efficiency it has. The efficient variety would impart extraordinary results. So, check the efficiency before buying the solar battery charger.
- Resistance to Water – Resistance to water is one of the very important criteria for choosing a solar battery charger because the solar panels are the best working when you put them outside in the sun. You never know when there will be suddenly heavy downpour and your battery charger will be exposed to water. So, better be prepared and prefer the one resistant to water.
- Output power – The output power is a very important criterion you should consider while buying a solar battery charger. It is on the power that the devices you can charge depends upon. If you are using a solar battery charger for phones, then low power is fine but if you are using it for charging car batteries or laptops, then the battery charger should impart greater output power.
- Battery quality – The quality of the device that you are using is one of the biggest questions. If you are buying a good quality product, then it will give you service for a longer period of time, not get damaged easily, enable quicker charging, and will be flexible enough for you to use.
- Durability – Apart from all the points mentioned, the biggest point of consideration is durability. How durable your solar battery charger is: is a question that would arise in your mind first. So, consider this point before buying the solar battery charger.
- Surface area present – You need to check the amount of surface area of the solar panel is exposed. If the solar panel has a large exposure, then it is highly likely that you obtain great power consumption capability. If the surface area is less, then charging of the power source will be slower. The device will be more powerful if it has a better surface area for the solar panel.
- Type of Panel – Be assured about the type of panel that you are using as your solar panel for the solar battery charger. Check if it is semi-flexible or rigid in nature. If they are semi-flexible, then they are easily adjustable and if they are rigid, then adjustments and portability can be a little difficult.
- Size and Connection points- The size of the solar battery charger is a very important point to consider. It has to take up space if it’s not portable and thus it should absolutely fit into the space allotted for it. If the thing is portable, then it should not be huge otherwise there will be problems in carrying. Next, if we talk about the connection points, the Solar battery charger should have multiple ports then it will be able to support a lot of things altogether.
List Of 10 BEST SOLAR BATTERY CHARGER
We know it is really difficult for anybody to figure out the best amidst such vivid options available in the market. We understand you are confused too. First, it makes you confused to think whether they are good enough to be bought and then if you are satisfied that they are great; you are confused which one is the best one and you should buy.
Such confusion, right? Do not worry about it. We are here to aid you to find the best in the market.
Solar Battery chargers are extremely useful and you will know it as you will complete reading the entire article. But apart from that, there are few points that we should consider while buying a solar battery charger which is mentioned above. Taking care of those points we have presented to you a list of solar battery chargers you can choose from. So, let us jump into the list and find the one best for you.
The solar battery charger by Soaraise is excellent and has 4 times extra charging speed. It has a very long battery life of 25000 mAh and can charge a phone a minimum of eight times and charge a tab twice. It comes with dual output and is extremely durable and safe to use. The charger is easily portable and is completely waterproof with an IP65 rating. It also comes with a flashlight.
- Power source – Powered by Solar energy
- Battery Capacity – 25000 mAh
- Color – Black
- Solar Panel Type – Foldable
- 🔋【26800mAh Large Capacity】: This 26800mAh solar power bank can charge your iPhone 6-10 times, Samsung 6-7 times, tablet, iPad or iPad Air 3-4 times and the weighs is only 1.3 pounds , making it suitable for outdoor survival and daily use.
- 🔋【Fast Charging】：It has 4 foldable solar panels, solar panel output up to 6W (MAX), USB*2 output 5V/2.1A, up to 2.4A.Save charging time efficiently
- 🔋【Dual Charging Method】：The solar panel charger allows you to get rid of the wall socket and electricity bill and charge the battery and smartphone by absorbing sunlight.
- 🔋【IP65 Waterproof Registration 】：The solar portable charger is IP65 waterproof and dustproof, so it is convenient for you to carry it out.
- 🔋【Higher Safety】: Built-in protection system protects the solar cell pack from overcharge, overdischarge, overvoltage, overcurrent, overheating and short circuit. Solar power bank is also CE/FCC/RoHS certified to ensure the safety of you and your device.
What We Love
There are multiple points to love about. It comes with four foldable solar panels and there are dual ports present in the device which means you can charge two devices at the same time. It has a charging indicator and an electricity indicator as well.
It has an excellent 25000 mAh battery and comes with a bright LED flashlight. There are three different modes in this which include Steady, SOS, and Strobe. It comes with a high-performance Lithium polymer Battery.
What We Didn’t Love
It is not at all great for charging car batteries and you cannot charge vehicles. Charging in the sun can be very tricky. Durability may be questionable in some cases so check it properly after first receiving it.
We definitely recommend this excellent Solar Battery Charger to you for having excellent battery backup and will charge your phones and tablets faster using this.
It is easily portable and has an excellent compact design. It comes with dual USB ports and has multiple device support. The solar charger is equipped with a flashlight. It is water-resistant, shockproof, and dustproof as well. It has smart LED indicators. It comes with a Lithium Polymer battery and has a 5000 mAh battery. It requires 6 to 7 hours for charging.
- Color – Blue
- Types of Connector – USB and Micro USB
- Power source – Solar powered
- The capacity of the battery – 5000 mAh
- 【20,000mAh Solar Charger】Solar power bank built-in a 20000mAh rechargeable Li-Polymer battery allows charging your devices multiple times. Innovative research and development, weighing only 8.8 ounces. The power of an upgraded solar charging panel can reach 5V / 200mA. Compatible with all 5v USB device
- 【Dual LED Flashlights & Embedded Compass】The solar phone charger upgrades three modes of dual bright LED flashlights, which are Steady-SOS-Strobe Mode, very convenient for camping or as an emergency light. An embedded compass helps you find the direction quickly, not lost in the outdoors. As the best outdoor partner, perfect for camping, riding, traveling, fishing and other outdoor or indoor activities
- 【Waterproof & Intelligent】The protable power bank made of durable ABS fireproof material, protects it from rain, dirt, and shock/drops. Design with intelligent security protection, avoid over-current, over-voltage, over-load and short circuit, etc. Free hook include, easy to hang in your backpack, so you can always solar charging on the go
- 【Upgrade Solar Charging】Solar power charger uses embedded solar panels, which can be charged all the time on the go. The solar charging speed will be affected by the weather and the environment (for example: cloudy and sunny, summer and winter), so the charging power can't always reach the maximum value. For optimal use, we advise you to take AC charging as daily power sources. Four blue indicators show the status of the battery charger timely
- 【What Will You Get】1x 20,000mAh Solar charger power bank, 1x USB to Micro cable, 1x Carabiner, 1x User Manual, 18-month of warranty. There is a totally risk-free purchase. Looking forward to ordering again
What We Loved
It supports a range of devices including phones, tablets, GoPro, GPS, and has waterproof and Shockproof nature.
It is also resistant to Dust and has support for both iOS and Android. It has Dual connector support. It is compact and easily portable.
What We Didn’t Love
The battery backup could have been better and overcharging can cause a lot of issues in the device. Be careful about it.
We definitely recommend this if you travel a lot and need a compact device that has a decent power backup. It needs time to get charged.
What do you think about this variety? We think it is classy and comes in premium quality. It is easily portable and has Smart IC chip technology. It can be folded and has a rugged design. It comes with a dual port and has a 21-watt power capacity. It is extremely lightweight.
- Color – Black
- Power source – Solar powered
- Power Capacity – 21 watt
- Conversion Efficiency – 21 to 24%
- ☀SMART CHARGING TECHNOLOGY: Built-in intelligent chip and voltage regulator technology that can detects your device then deliver its fastest possible charging speed. Solorage solar power charger ensures safe charging via overcharge, overheat and short circuit protection.
- ☀HIGH ENERGY CONVERSION: 21 watt SunPower folding solar panel is 21.5%- 23.5%of conversion efficiency, providing the charging speed up to 2.4A per port or 3A overall in enough sunlight.
- ☀PORTABLE: Compact size (10.6 × 6.3× 1.3in folded) and lightweight (21 oz) design make the portable solar panel bag ideal for hiking, camping, fishing or other outdoor activities. It can be easily attached to backpacks, trees or tents with 7 cord hooks.
- ☀DURABLE: Solar panels seam into rugged polyester canvas and industrial-strength PET polymer surface protects it from occasional rain or wet fog.
- ☀WIDE COMPATIBILITY: This solar charger is compatible with almost all the 5V Android devices, cell phone, IOS devices (needs extra apple’s cable), Power Pack, PSP, Digital cameras, Bluetooth headsets etc.
What We Love
There are USB ports and supports Laptops, Tablets, Phones, and even cameras. It comes with protection from over-current. It is smart and has an excellent compact design.
It comes with 21-watt solar panels of high efficiency and has a power output of 5 volt USB. There are 4 solar panels.
What We Didn’t Love
The Zipper it has may sometimes cause problems though it is a very minor issue and can be ignored in most cases.
We recommend this excellent Solar Battery charger for your phones, laptops, and tablets and hence you can easily charge them anywhere anytime.
X Dragon is a portable solar battery charger with a compact and excellent design. It can easily charge laptops and cellphones. This is the best for camping purposes. It has high rates of efficiency. It is resistant to water and has safety protection. It is dustproof as well. It has also got protection from short circuits.
- Color – Black
- Power source – Solar powered
- Compatible Devices – Mobiles and Laptops
- Type of Connector – USB
- Number of Ports – 2
- ❤❤Ship from US local store，generally you will get it in 3-10 days！❤☀444wh 120000mAh Huge Capacity: Compatible with multiple devices for simultaneous charging and long lasting battery life. The rechargeable portable power station weighs only 8.8lbs and a solid handle design makes it easy to take backup battery power supply to everywhere. Built with two LED flashlight, which could give off 2 lighting modes (steady light, flashing light SOS mode)
- ☀4*Output Modes & 2*Charging Methods:：X-DRAGON portable power station have 4 x DC ports (12V/8A Max) 2 x USB ports (5V/3.1A Max) and 1x Quick Charge 3.0 (5V/3A, 9V/2A, 12V/1.5A) 1x Type C(PD45W:5V/3A, 9V/3A, 12V/2.5A, 15V/2A, 20V/2.25A) 1x AC(110V/60HZ) and you can pass through solar panels/Wall outlets charging，and bring more convenience to your life.
- ☀ECO-FRIENDLY CLEAN OUTDOOR POWER: X-DRAGON power supply works without bothering noise, no fuel or gasoline, it can safeguard you and your devices by over-voltage protection, over-current and over-temperature protection. Battery Management System (BMS) can continue to escort you. You can use with confidence.
- ☀Widely Range of Application:The backup battery power supply is powerful enough to meet different kinds of electricity demands usage for emergency, outdoors, home, travel, camping, road trips. Portable power source suitable for most household appliances<500W (750W surge max) and it can supports charging mobile phones, laptop, GPS, walkie talkies, cameras, drones, in-car appliances,small refrigerators and more. Portable power station use pure sine wave inverter, which working faster, quieter.
- ☀WHAT YOU GET: You will receive 1* X-DRAGON Power Station; 1* AC Wall Charger; 1* User Manual. Buy X-DRAGON power station with Confidence: 24-hour prompt customer service, 30-day money back guarantee, 18 months warranty. Any questions, please feel free to contact us.
What We Love
Even on cloudy days if you really do not have unrealistic expectations then you are likely to be satisfied by the device. It is able to charge quick and works smoothly. It is water-resistant and dustproof. It comes with dual USB ports and has excellent efficiency.
The package has a 40-watt foldable solar panel which makes it compact and easy to carry anywhere.
What We Didn’t Love
The quality of the material may not be favorable for all and it is not very suitable for the iPad in certain cases. Check the device before keeping it.
We are happily recommending this to you as it is excellent if you go camping and it is completely water and dust resistant and hence can be beneficial in your traveling duration.
Solperk Solar Kit is an excellent battery charger that comes with tempered glass for extra protection and has a conversion efficiency of 24% and is completely weatherproof. It has a very easy installation with waterproof controllers. Hopefully, you are going to love this for your cars and any other locomotives.
- Color – Black
- Power source – Solar powered
- Power output – 20 watt
- Compatible with – Automobiles, cars, boats, bikes, marine automotive, etc.
- ☀️【Outstanding Quality】100W solar panel adopts well-built monocrystalline cells with high conversion efficiency up to 24%. Using Tempered glass, weatherproof film and plus aluminum frame for excellent extended outdoor use, which can withstand storms for more than 10 years.
- ☀️【Easy Installation】Pre-drilled holes on the back of the panel, you can install it in a few simple steps with Z-brackets, Pole or Tilt Mounts, etc.
- ☀️【Wide Application】 This 100 watt solar panel can charge different 12V DC batteries, such as Wet, Gel, MF, EFB and AGM. A variety of scenarios for RV, car, boat, marine, camper, jet ski, caravan, water pump, shed etc.
- ☀️【Dimension】 Size 39*21.3*1.2 inch. Higher output in smaller volume. Fully comply with industry standards, which can connect cables perfectly to complete the series or parallel connection between solar panels.
- ☀️【What You Get】 1 great solar panels with extended 12 months warranty and our 7*24h technical service support.
What We Love
It comes with excellent waterproof controllers and has a very easy installation process. It has a wide range of applications and works with cars, marine, boats, motorcycles and many more.
It comes in excellent quality and has multiple power variants from 10 watts to 200 watts. It comes with a very strong and durable aluminum frame.
What We Didn’t Love
This may seem a little expensive but based on the features it gives, the price is great but can be a problem for some.
Excellent variety for charging up any automobiles and we recommend this as it is one of the best you can have in the market.
Other Solar Battery Charger Worth Considering
If the above list does not satisfy your interest then look for few more products:
Blavor Solar Power Bank, Qi Portable Charger
Qi Wireless and Solar Power, user-friendly, tested times for charging, flashlight, and compass kit.
- Qi Wireless & Solar Power：10,000mAh wireless power bank with solar. Not just wireless power bank but wireless charger as well compatible with iPhone XR/ XR MAX/ XS/ X/ 8/ 8plus, Samsung Galaxy S9/S9plus S8/S8plus and all qi-enabled mobile devices.
- 2021 Newest Design: The solar panel charger is equipped with one click-button and Qi wireless charging chip, one-click to unfold the panels, easy to unfold, convenient to put away and just set you qi-enabled phone on the wireless charging area, renders you a neat and cable-free lifestyle.
- Digital Real-Time Power Display: With the LCD screen, you can clearly know how many power left in the charger, and how many power the bank can get from the sunlight, when place it under sunlight. Make sure there is heat dissipation space to avoid malfunction caused by over-heat.
- Sturdy Durable and Compact Size：the portable charger is made of premium ABS materials and lithium polymer battery, highly sturdy and durable. Its equipped with two USB, type C, dual flashlights and a compass kit. Light weight and compact size.
- Four Outputs&Three Modes Flashlight: Charge 4 devices simultaneously, meet the needs of all familiy members while go outdoors, Steady/SOS/Flashing, an useful handy tool as a backup emergency kit.
ECO-WORTHY 12 volts 10 Watt Car Battery Charger
Used for the purpose of charging car batteries and has an alligator clip adaptor meant for cars, bikes, boats, automobiles, and RVs.
- COMPREHENSIVE PROTECTION: Mini solar panels are made of high-quality materials and are durable. It can prevent the battery from overcharging, discharging, and short circuit, so that the battery is fully protected.
- TO ABSORB SOLAR ENERGY TO A GREATER EXTENT: This solar charge controller is light in weight and easy to carry. The convex points distributed on the plane are conducive to the secondary propagation of light, absorb the radiant heat of solar energy to a greater extent, and greatly improve the photoelectric conversion efficiency.
- MORE DURABLE: Our portable power backup kit is more environmentally friendly, energy-saving, and has a high conversion rate. The 140MA 2V solar panel supports a working current of 0-140MA, and the output efficiency is high.
- ULTRA-HIGH CONVERSION: It is mainly used to convert solar energy into important electrical components for application power. Polycrystalline solar panels can absorb strong light and convert it into direct current to charge the battery.
- EASY TO USE: This outdoor charging board is suitable for all kinds of low-power electrical appliances, such as emergency lights, advertising lights, traffic lights, household lights, electric fans, solar water pumps, solar street lights, etc. It is a small solar system.
ADDTOP Solar Charger
It has a very high capacity and is meant for your mobiles and tablets.
- ★High Capacity Solar Charger: 20000mAh solar power bank built-in high capacity polymer battery, equipped with a compact solar panel in lightweight and compact size which could recharge the battery itself under sunlight, eco-friendly and ideal for outdoor activity.
- ★Built-In Flashlight & Dual USB: Steady-SOS-Strobe 3-mode flashlight light up your walking road at night when camping even sending a signal for help in an emergency. Dual 5V/2A USB can charge 2 devices at the same time. Compatible with all cellphones and other electronic equipment.
- ★Quite Portable Solar phone Charger: Easily hang it on your backpack with the lightweight size and a carabiner, hands-free on the go. Easy to fit into pocket or bags. Come in handy with the power outages. A great choice for Camping, Hiking, Climbing, Fishing and Etc.
- ★Superior Portability Design: Made of durable and reliable ABS+PC+Silicone material protects it from rain, dirt, and shock/drops. Long lifespan with more than 500 recharging times., anti-explosion Lithium Polymer battery cells. Built for adventure.
- ★USB Input & Solar Charging: Five pilot indicators show the status of the battery charger timely. Greenlight on when charging by solar, blue light on when USB charging. In daily life, we recommend charge it via a wall outlet, take the solar panel charging feature as the emergency backup solution. Solpowben solar power bank provides Reliable After-sale service, Any related issues are guaranteed for 1-year and 24 hours online after-sales service is supported.
Sunway Solar Car Battery Charger
It is mainly used for charging the car batteries and comes with a 16 feet connection.
- [APPLICATION]: SAE to SAE adapter connectors applied on 12V/24V DC systems. Compatible with all kinds of SAE quick connection/ disconnection extension cable plugs
- [CONVENIENT]: Saves rewiring work when using the wrong polarity in DC Accessories. Makes it easy to connect different devices.
- [EASY TO USE]: Solid Plug-in, no wires to get in the way. Straight, and compact to switch poles. Set up and disassemble easily. Provide a simple solution for polarity reversal.
- [WIDE COMPATIBLE]: These are heavy-duty SAE connectors, perfect for accessory usage, battery charging polarity change, battery testing. Fit for solar panel projects, electrical wiring projects, cars, motorcycles, light aircraft, and industrial equipment.
- [WHAT YOU WILL GET]: 2 * Reverse Adapter Connectors √; 18 months warranty √; 24 hours passionate customer service √; 30 days freely return and exchange √. Any questions, please feel free to contact us first, we will support you with the best customer service.
What do we mean by Solar Battery Charger and how does it work?
Solar Battery Charger is a cheap and renewable power source used to charge other items like phones, car batteries, laptops, and many more. Solar Battery Charger uses Solar power to get charged itself to later charge other things. It converts solar energy into electrical energy. It has a working principle similar to photovoltaic cells. The devices usually come with solar panels. The sunlight is absorbed by the solar cells and an electric field is created. The battery actually then stores this electricity. There remains an inverter for converting Direct Current to Alternate Current and the electricity is actually utilized next by the devices.
Why use a Solar Battery Charger?
There are multiple reasons you can use a Solar battery charger and the biggest reason is that it utilizes Solar energy which is available and is a renewable source of energy. Battery Charging is a very important facility required almost by each and every person. There are multiple devices that can easily work with the Solar battery charger like:
- Mobile phones that are used at least once or twice daily.
- Laptops though they may take time to fully charge.
- Vehicles and RV batteries though it may take time to charge fully.
- Small devices can be used like: flashlights, personal fans, reading lights,s, etc.
There are thus a plethora of reasons for which we should prefer using Solar Battery Charger and so we are here utilizing the same.
Are they worth it over other conventional options?
Do you still have doubts? Let me assure you. Absolutely yes. The Solar battery chargers are absolutely worth the conventional options. They are not only efficient but also durable. They have a longer life and utilize renewable sources of energy.
Should you just DIY a Solar Battery Charger?
If you really love DIY products and try your hands on your skills, then definitely opt for making a DIY Solar Battery Charger. Just be sure about the major components to be utilized, the correct procedure, and the type of batteries used. Also, make the connections proper so that there is no short circuit. If you want to DIY, then your cost will also be very less. The major components that you would require to DIY Solar Battery Charger are:
- The solar cell of 5 volts.
- PCB (General purpose)
- 1N4007 Diode
- Copper Wires
- Terminal Blocks (2 units)
- Battery 18650
- Battery holder for the same
- Battery Protection board (TP4056)
- Power Booster of 5V
- Wires for Connecting
- General Soldering equipment
Let us check the steps to DIY Solar Battery Charger:
- First, we have to be clear about the hardware requirements and collect all the items as mentioned above.
- We have to understand the working cycle of the TP4056 properly.
- You need to have a switch along with the hardware to make up the DIY solar battery charger.
- Then make the connections. First, take the solar panels and it has two wires coming out: one red which is positive, and the other black or brown which is negative.
- Now we have to take the TP4056 Lithium-ion battery charger module and the module has two connections: IN+ and IN-. Connect the anode of the 1N4007 diode to the red or positive wire of the solar panel.
- Now make a connection between the cathode of the diode and the IN+ and then connect the black or the negative wire of the solar panel with the IN-. Thus, the input section is done.
- Now for output, there are 4 connections in TP4056: B+, B-, OUT- and OUT+. Take two of the 18650 batteries along with the holders and connect all the parallel (all positive common and all negatives common).
- Now connect the common positives to B+ and solder the wires well to the charger board. Do the same with the common negatives and connect them with B-.
- Now connect the output of TP4056 to the Booster Converter Module of 5V. There are two input terminals in the step converter module namely IN+ and IN-. Connect IN+ with OUT+ of the TP4056 and similarly connect IN- with OUT-.
- We can actually use a switch in between the booster and the TP4056 to facilitate ON and OFF. Glue it all together and now your DIY Solar Battery Charger is ready.
Make proper connections and DIY your first-ever solar battery charger. All the best!
Pros and Cons of Solar Battery Charger
Of Course, before you are well aware of the nitty gritty of Solar Battery Chargers, you should absolutely not think about buying them. So, here we present the advantages and the disadvantages of using a Solar Battery Charger which will help you to figure out your needs based on the pros and cons it affords to the users. So with no delay let us check it out properly.
- Availability- Availability is a very important criterion that makes it one of the best choices for battery chargers. You can actually get the source of energy available anywhere and you can charge it easily.
- A great battery backup – It is a great battery backup and can be used to power up phones, laptops, or even car batteries.
- You can have more Self Reliance – There will be self-reliance about the energy source as you depend on the sun for all the power and energy.
- Friendly to the Environment – They are absolutely environment friendly and keep the environment free of pollution.
- Costing can be sometimes high – The initial installation cost can be a little on the higher side and you may need to invest quite a good amount of money as compared to any normal battery charger.
- Maintenance is tricky, and the concept is a little complex – Though it won’t require frequent maintenance it is highly likely that whenever you have to work for its maintenance, it is going to be a little tricky. The entire process has a lot of complexity and is not as simple as any normal battery charger.
Frequently Asked Questions
What is the working principle of a Solar battery charger?
It converts solar energy into electrical energy. It has a working principle similar to photovoltaic cells. The devices usually come with solar panels. The sunlight is absorbed by the solar cells and they create an electric field. The battery actually then stores this electricity. There remains an inverter for converting Direct Current to Alternate Current and the electricity is actually utilised next by the devices.
Why do we use solar battery chargers?
Solar battery chargers are generally used for the purpose of charging other gadgets like phones, laptops and many more.
How effective are the Solar battery chargers?
The Solar battery chargers are absolutely effective in charging multiple devices and they are environment friendly and do not cause any pollution.
What are the criteria you should follow while buying the best solar battery charger?
We recommend checking the size, portability, battery capacity, quality, and durability of the battery charger you are buying.
Tips and Tricks for using your Solar Battery Charger
- Keep it charged as much as possible and thus keep it under the sun in case you are owning a portable one.
- It is better to use large batteries for powerful system charging and if you do not get one, then do not use small batteries because that won’t be much helpful.
- Never overcharge the solar battery charger, it may damage the system. But sometimes overcharging is also great for solar battery chargers,
- Keep it compact and prefer the variety suiting your interest.
- You may want to use it at night so charge it well before it gets dark.
Meanwhile, Feel Free To Check Out Our Article On Best Solar Keyboard.