When the sun goes down, it’s time to light up the night with solar-powered lights. These eco-friendly fixtures rely on energy from the sun to power up during the day, and provide light at night. But what happens when there’s a black out? Or when winter sets in and there’s less daylight to charge them? That’s where solar light batteries come in. These replacement batteries keep your solar lights shining brightly, no matter what the weather is like outside.
There are a few things to consider when choosing the right solar light batteries for your needs. The first is the size of the battery. Solar lights come in all shapes and sizes, so it’s important to choose a battery that is the right fit. Some solar light batteries are designed to work with a specific type of light, while others are more versatile.
Another thing to consider is the type of battery. Solar lights can run on either lead-acid or lithium-ion batteries. Lead-acid batteries are cheaper, but they also tend to be heavier and less efficient. Lithium-ion batteries are more expensive, but they’re lighter and more efficient.
Finally, you’ll need to decide how long you need the battery to last. Solar lights can last for years, but the batteries will eventually need to be replaced. If you only need the light for a short period of time, such as during a power outage, then you’ll want a battery that has a shorter lifespan. If you need the light to last for an extended period of time, then you’ll want a battery with a longer lifespan.
Now that you know what to look for, here are some of the best solar light replacement batteries on the market.
1. DieHard 71219 6V 4.5AH Solar Battery
This battery is designed for use with solar lights, and it’s a great choice if you’re looking for a reliable, long-lasting option. The DieHard 71219 6V 4.5AH Solar Battery has a lifespan of up to 10 years, making it a great choice for those who need a light that will last. This battery is also lightweight and easy to install, making it a good choice for those who are looking for an uncomplicated option.
2. Energizer Solar AA Rechargeable Batteries
These batteries are designed for use with solar lights, and they’re a great choice if you’re looking for a reliable, long-lasting option. The Energizer Solar AA Rechargeable Batteries have a lifespan of up to 10 years, making them a great choice for those who need a light that will last. This battery is also lightweight and easy to install, making it a good choice for those who are looking for an uncomplicated option. Energizer also makes batteries for RVs
3. Duracell Solar AA Rechargeable Batteries
These batteries are designed for use with solar lights, and they’re a great choice if you’re looking for a reliable, long-lasting option. The Duracell Solar AA Rechargeable Batteries have a lifespan of up to 10 years, making them a great choice for those who need a light that will last. This battery is also lightweight and easy to install, making it a good choice for those who are looking for an uncomplicated option.
4. Renogy Lithium-Ion Battery
This battery is designed specifically for solar lights, and it offers many benefits over other types of batteries. The Renogy Lithium-Ion Battery is significantly lighter than lead-acid batteries, making it easier to install and transport. This battery is also more efficient, meaning that it will last longer and provide more light. However, this battery is more expensive than other options on the market.
5. Sunforce Lead Acid Battery
Sunforce lead-acid batteries are some of the most popular on the market and for good reason. These batteries are reliable, long-lasting, and easy to install. However, they are also heavy and less efficient than other types of batteries. If you’re looking for a reliable solar light battery that won’t break the bank, then this is a great option.
FAQs
Q: What is the best solar light replacement battery?
A: The best solar light replacement battery will depend on your specific needs. If you’re looking for a long-lasting, reliable option, then one of the lead-acid batteries on this list would be a good choice. If you need a lighter, more efficient battery, then a lithium ion battery would be a better choice.
Q: How long do solar light batteries last?
A: Solar light batteries typically have a lifespan of 2-5 years. However, some batteries, such as lead-acid batteries, can last up to 10 years.
Q: What is the most efficient solar light battery?
A: The most efficient solar light battery is the lithium ion battery. This battery is lighter and more efficient than other types of batteries, making it a better choice for those who need a reliable, long-lasting option. However, it is also more expensive than some other options on the market.

My name is Alex Landry and I am an experienced solar PV engineer and an editor here at Tru Solar Score. I am an accomplished solar PV expert with over 12 years of installing off-grid solar systems in various states in the US. Between 2015 and 2019, I led a small team of energy audit analysts for a company based out of Oregon. I currently run this site full-time and when I am not testing a new solar PV product in the market, I am offering customized consulting on solar systems installations. You can reach me directly using alex@trusolarscore.com