In many ways, lithium batteries are an improvement over older lead-acid models. Lithium batteries require far less maintenance, have longer life spans, and are more energy efficient. However, like almost all batteries, there are some side effects when lithium battery packs experience exposure to cold air. You should know what to expect when using lithium batteries in cold weather and how you can prepare your batteries for the winter.
Effects of Cold Weather
Many lithium batteries have a wide range of temperatures at which they can operate safely and efficiently, so the effects of cold weather are not often a concern. However, depending on where you live, your battery may have some noticeable reactions to colder temperatures that go outside these operating parameters.
The cold may lower the battery’s capacity when consistently used in temperatures below freezing. Essentially, you may need to carefully observe the rate of discharge on your battery in colder weather as it will drain faster.
Proper Battery Storage
Something to expect when using lithium batteries in cold weather is that any external temperatures below freezing cause the battery to drain more rapidly. If you plan to put your battery pack in storage over the winter, we recommend charging it before storing it in a dry area and off the floor.
Storing a battery when it’s almost drained is inadvisable, so to prevent any potential damage in winter storage, charge your battery while it’s still warm.
Preparing for Use
It can be difficult to perform tasks when you’re feeling all cold and stiff, so it helps to warm up before exerting yourself. This practice works well for your lithium batteries too! If your batteries are in storage or have been in freezing temperatures for extended periods of time, it’s a good idea to warm them up slightly before running them. Turning on a freezing lithium battery may result in a small jolt to the battery’s system so to speak, that can slightly reduce the overall life span of the battery if done repeatedly. To extend the life span of your battery, warming it up before starting it is best.
If you’re looking for large lithium-ion batteries for sale, BigBattery has a wide selection of batteries with generous operating parameters and that are prepared to handle even the toughest winters. Browse through our catalog to find the right product for you! You can also bring your questions or concerns to a member of our trained staff who can help you find what you need. Contact BigBattery today for more information.
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Frequently Asked Questions
How long do LiFePO4 batteries last?
A quality LiFePO4 battery can commonly deliver 4,000 or more charge cycles, often roughly 10 years or longer under the right conditions. Depth of discharge, temperature, charge settings, storage habits, and the BMS all affect the result.
How many years is 4,000 cycles?
One full cycle per day is about 11 years. Three cycles per week is more than 25 years on paper, though calendar aging becomes the limit first.
What happens at the end of a LiFePO4 battery's life?
It does not suddenly stop. It loses capacity gradually. A battery rated for 4,000 cycles may be specified to keep around 80% of its original capacity at that point.
Does temperature affect LiFePO4 battery life?
Yes. High heat speeds aging, and charging below freezing can damage cells unless the battery has low-temperature protection or self-heating.
How long does a lithium battery last in an RV?
Many years, when charging sources are configured correctly and the battery is protected from freezing charge conditions. Annual cycles are often fewer than in a daily solar system, but conditions vary more.
How should I store a lithium battery?
Store it at a partial state of charge in a clean, dry, moderate-temperature location. Disconnect parasitic loads and check it periodically per the manufacturer's guidance.
