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The whole purpose of solar lighting is to use the only free source of energy available: the sun. When your solar lights begin collecting energy from the sun, that energy needs to go somewhere. Rechargeable batteries are necessary for keeping many solar lights operational. Without them, your lights won't kick on when it gets dark outside. 


How Do Solar Lights Work?

Solar lights use a solar panel to absorb energy from the sun. When the sun is high in the sky, the solar panel takes the light and turns it into something else. Photons from light separate electrons from atoms, which in turn creates a flow of electrical power. This is called a photovoltaic reaction, and it literally means that light is transformed into electricity.


You don't need this light when it's bright outside. The sun illuminates everything. Solar lights store the electricity they've generated for later use. When the sun goes down, the light stops producing electricity and starts using the electricity that they've stored.


How Long Do Solar Lights Last?

The LED bulbs used in solar lights can last up to ten years with regular use. LED lights are remarkably efficient, and that's why Boundery uses LED lights in all of our indoor and outdoor lighting products. A well-made solar light with a sufficient panel and decent battery capacity can run for as long as eight hours a night, lasting through the darkest hours and recharging again in the morning. 


The rechargeable batteries inside of your solar light will last anywhere between three and four years without requiring replacement. Even though rechargeable batteries are designed to reduce the amount of waste generated by batteries, they're still not lifetime devices. Wear and tear on rechargeable batteries will diminish their capacity until they're no longer able to hold a charge. 


Why Do Solar Lights Need Batteries?

Solar lights don't automatically use the energy they've converted. They need to store that energy for later. This requires some kind of a rechargeable battery, whether it be in the form of an external replaceable battery or a battery built into the device. When the light turns on, it draws and uses the electricity it's been storing in its battery reserves.


The 3 Best Rechargeable Batteries for Solar Lighting

Solar lights that don't have an integrated rechargeable battery require the use of external rechargeable batteries to store their power reserves. Choosing high quality, high powered rechargeable batteries will assure that you're not constantly replacing them. 


POWEROWL Rechargeable AA Batteries

POWEROWL's solar rechargeable AA sized 2800 mAh batteries are designed with wide temperature resistance, which is exactly what you need in a solar rechargeable battery. Batteries under direct sunlight will naturally get a lot hotter than the batteries in your TV remote, and POWEROWL designed their batteries with this in mind. 


The wide temperature resistance also helps protect the batteries in cold weather. You don't need to bring your solar lights inside for the winter. They've been tested and can perform in temperatures as low as -4 degrees fahrenheit. 


These batteries can be recharged over 1,200 times and retain up to 70% power storage capacity for up to 3 years. This is perfect for a solar light. Since they'll be charged daily by the sun, their effective run time before they'll need replacement is about 3 years. 


EBL AA Rechargeable Batteries

EBL 1100 mAh rechargeable AA batteries are specifically made to work with solar lights. They also come in a AAA size for smaller solar lights and features that require smaller batteries. These low resistance, high capacity, weatherproof batteries charge quickly and hold their charge. 


The biggest advantage of the EBL batteries is their enhanced leak resistance. Batteries that are overtaxed can sometimes leak their internal acids, sometimes completely ruining the devices they're in. EBL uses a stainless steel cell to reduce the risk of corrosive leakage that may destroy your solar lights. 


EBL promises that their batteries will retain up to 75% of their storage capacity for up to 3 years, which is the average duration of batteries in solar lights. Many users find this to be true, but some report that they occasionally have to manually charge their solar light batteries in lower light conditions. This might be due to subpar quality solar panels, or it could have something to do with the design of the battery. 


Tenergy Rechargeable AA Batteries

Tenergy's powerful 1000 mAh rechargeable AA batteries are designed specifically for certain brands of solar lights that don't come with integrated battery storage. Since these batteries were made exclusively for solar lights, you can expect them to last longer than regular solar batteries that just so happened to fit in your device. 


It's worth noting that these batteries solve a very particular need. They're made for Malibu and Intermatic branded solar lights. Many users report that they don't work well in devices manufactured by other solar light companies. They're not versatile enough to use in other home devices. They're specifically a problem solver for a select amount of people. Those who require them may not be able to use their solar devices without them. 


Should I Get a Battery-Powered Solar Light?

There's no reason to bother with rechargeable batteries for your solar lights. Rechargeable batteries are just about obsolete. Instead of switching batteries, upgrade your lights. Higher quality solar lights come with integrated battery storage solutions that are specifically designed to work with the solar panel and the LED lights. 


Companies that don't incorporate reserve batteries into their solar lights are trusting that you'll find something that will work out of a variety of generic options. Nothing will top the storage capacity, longevity, and convenience of a solar light that's ready to work directly out of the box. All the components have already been perfectly matched, and there's absolutely no maintenance required. 


The Best Solar Lighting Fixtures Don't Require External Batteries

Boundery's solar lighting solutions are ready to use right out of the box. They're designed to be functional, beautiful, and practical solar lighting solutions that make your home and garden safer and more aesthetically pleasing. We have more than simple path lights to offer (though our path lights are pretty popular). 


LifeProof' Deck Light

Our LifeProof' Deck Light is bright and waterproof. These lights can easily be installed around features or ponds, illuminating the ground around water features at night to prevent guests from accidentally stumbling in. 


These lights are made to be affixed to the ground, so we made them strong. Someone accidentally stepping on them is no big deal. In fact, they're so strong that you can drive a car over them without damaging them. 


Solar LED Stair Lights

Our solar LED stair lights are rugged and weatherproof, and they only take a few seconds to install. They're designed to illuminate decks, docks, and stairs around the exterior of your home, making it safe to walk around your property without stumbling down the stairs in the dark. 


LUMN8' Solar Fairy Light LED Lantern

Our Solar Fairy Light LED Lantern is designed to be a beautiful conversation piece at your next outdoor gathering. Its rustic lantern design is filled with tiny clustered lights, mimicking the appearance of fireflies in a bottle. If you love boho decor, simply clip these lights up around your gazebo or patio to add ambiance and a lovely glow. 


RGB Solar Firework Stake Light

The RGB Solar Firework Stake Light is a play on traditional LED stake lights. These add ambiance to your garden with a beautiful and whimsical design that fits in perfectly with your greenery and flowers. These fun bursts of colors make your plants look alive and vibrant at night. 


LumiGuard' Pro

Our LumiGuard' Pro motion sensing solar LED flood light is the perfect solution for home security and convenience. It knows when you pull up the driveway at night and need to see to unlock the door. It senses animals approaching your garden, and it scares off potential intruders. 


The Takeaway

You can use solar lights that require replaceable, rechargeable batteries. But why would you? 


Choosing solar lighting solutions with incorporated battery features that are designed to work perfectly with their devices is far more convenient. You won't need to worry about replacing or manually recharging batteries that can only try their best to work with the specifications of your solar lights. 


Eliminate all replaceable batteries from your life for good. When you use a Boundery light, you'll never have to worry about maintaining your solar lighting. Our lights are rugged, weatherproof, and designed to last for years. Just install them and count on them. It's that simple. 





Sources:

  1. ?https://www.sciencedirect.com/topics/engineering/photovoltaic-effect 
  2. ?https://electronics.howstuffworks.com/everyday-tech/battery5.htm 
  3. ?https://www.consumerreports.org/batteries/whybatteriesleak/ 

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