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What's the Runtime of Solar Powered Generators?

What's the Runtime of Solar Powered Generators?

Are you considering adding a solar powered generator to your options for off-grid power? Solar generators are great emergency backup systems and can provide reliable, portable power wherever you need it. But there's still one question that remains: How long does a solar powered generator run? In this blog post, we'll explore how long the leading units last, and what affects the runtime of solar generators so that you can make an educated decision when selecting the best solar generator for your specific needs. Without further ado, let’s begin.

How Long Does a Solar-Powered Generator Run?

Typically, a brand new solar generator with a fully charged battery will hold its charge for about a year. In other words, its efficiency will not change much within a year. However, we also need to consider the cycle life of the battery. This refers to the number of times a battery can be fully discharged and recharged before its storage capacity degrades. Ordinary solar cells can generally complete 500 cycles of charging. But currently the best solar cell is LiFePO4 battery, such as the one used in Anker Solar Generator 767, which can be charged 6500 times before the battery capacity drops.

Factors That Affect The Running Time Of a Solar Generator

Since the life of the battery is easily affected, if we know some key factors, we can make a better choice when choosing a battery. So what factors are more important? Let's take a look:

Type And Cycles Of Battery

Typically, there are 3 types of batteries for solar generators, which are the lead-acid batteries, lithium-ion batteries, and LiFePO4.

Lead-acid batteries have been the most popular type for decades due to their cheap cost and high discharge rates. However, they have a low energy density and require regular maintenance. Lithium-ion batteries, on the other hand, are more expensive but offer a higher energy density, longer lifespan, and less maintenance. They are widely used in consumer electronics and electric vehicles.

Lastly, LiFePO4 batteries are a type of lithium-ion battery that is preferred for its high safety, long life, and tolerance to high temperatures. They are widely used in medical equipment, solar power systems, and industrial applications.

Storage Capacity Of Battery  

The storage capacity of the battery also affects the run time of the solar generator. The more energy stored in a battery, the longer it can power your device. In general, a large battery with a higher capacity will provide longer run time and more devices than a smaller battery with a lower capacity.

Energy Consumption Rate

The rate at which a device connected to a solar generator consumes energy also affects its run time. If the device consumes more energy, then the solar generator will run out of power faster than if it consumes less energy.

Maximum Power Output

Finally, the maximum power output of the generator should also be considered when determining its operating time. A generator with a higher output can provide more power than a generator with a lower output.

Can You Keeping Running a Solar Generator?

It is possible if you have enough sunlight and battery storage capacity. However, it must be ensured that its ability to generate and store electricity is greater than the consumption of the equipment, otherwise the solar generator may run out of power. This will cause the battery to overheat and then burn or damage internal components, resulting in slower battery processing and reduced efficiency. In addition, solar generators can overheat if they are used continuously, especially at their maximum rated output, which can cause damage to the components of the generator and potentially reduce its lifespan. Therefore, it’s better to let the solar generator have enough battery storage before using it, and allow it to rest when using it.

What's The Popular Portable Solar Generator?

While there are many options available, Anker Solar Generator 767 consistently receives high praise from users. Offering an impressive battery capacity and a range of output options, this generator is a top-performing and reliable choice for those seeking a sustainable power source. It is a long-lasting portable power station with a lifespan of up to 10 years. It uses Anker's proprietary long-lasting technology InfiniPower™, combined with LiFePO4 batteries, so you don't have to worry about charging efficiency at all. And it runs a wide range of devices, with a dedicated RV port, 4 AC ports with up to 2400W of power, 3 USB-C charging ports, 2 USB-A ports, and 2 car outlets to power almost any device at once. If you need power on the go, or often carry out outdoor activities such as outdoor barbecues, camping movies, etc., it will be your best choice.


With this information, you should have a much better understanding of what to look for when choosing a solar generator and the runtime of the solar generators. It is important to assess your specific needs before purchasing, as each model and type can vary greatly. Whether selecting an option with long-term benefits or something more modest and budget-friendly, solar energy provides green solutions that offer long-term sustainability.


How Can I Extend The Lifespan Of My Solar Generator?

If you want to extend the life of your solar generator, there are a few tips that can help you.

  • First, try to keep your battery's charge level between about 20% and 80% most of the time. Constantly charging it to 100% and draining it completely can reduce its lifespan. This is particularly true for lithium-ion batteries.
  • Second, solar generators should be charged using compatible solar panels, and it's important to make sure they're getting enough sunlight. Insufficient light can lead to incomplete charging, which can affect battery health over time.
  • Third, you should also read and follow the manufacturer's instructions on how to use and care for your solar generator.

Finally, if your solar generator has software, make sure to update it regularly. Manufacturers often release updates that can optimize the generator's performance and extend its lifespan.

What To Consider When Choosing a Solar-Powered Generator?

  • Power output: The power output of a solar generator determines how much electricity it can generate. Look for a unit with enough power output for your needs, such as powering lights, small appliances, and other electronics.
  • Battery capacity: The battery capacity of your solar generator will determine how long you can use it without recharging. If you need longer intervals between charges, look for a device with a larger battery capacity.
  • Portability: If you plan to use your solar generator in multiple places or take it with you when traveling, look for one that is lightweight and portable. Many models from Anker, for example, come with a carrying case or strap for easy portability.
  • Price: The price range for solar generators varies, so consider your budget when choosing a solar generator. Keep in mind that pricier models usually have more features and better performance than less expensive models.
  • Warranty: Most solar generators come with some type of warranty, so be sure to read the fine print before buying to make sure you're covered if something goes wrong with the unit.
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