Lithiumhub’s Lithium Ion Jump Starter Guide Ever get stranded on the side of the road thanks to a dead battery? Yeah. It’s the worst. That’s probably why you’re here. And you’re in the right place, because we’re going to take a deep dive into the world of the lithium-ion jump starter. This article will help […]
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Lithium Batteries In Cold Weather – Everything You Need to Know Winter’s just around the corner but that doesn’t mean your adventures have to stop! It does, however, bring up a good question: how do different types of batteries hold up in cold weather? And not only that but how do you take care of
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The C-rate is a unit to declare a current value which is used for estimating and/or designating the expected effective time of battery under variable charge or discharge condition. The charge and discharge current of a battery is measured in C-rate. Most of portable batteries are rated at 1C. This means that a 1000mAh battery would provide 1000mA for one hour if discharged at 1C rate. The same battery discharged at 0.5C would provide 500mA for two hours. At 2C, the 1000mAh battery would deliver 2000mA for 30 minutes. 1C is often referred to as a one-hour discharge; a 0.5C would be a two-hour, and a 0.1C a 10-hour discharge. The capacity of a battery is commonly measured with a battery analyzer. If the analyzer’s capacity readout is displayed in percentage of the nominal rating, 100% is shown if a 1000mAh battery can provide this current for one hour. If the battery only lasts for 30 minutes before cut-off, 50% will be displayed. A new battery sometimes provides more than 100% capacity.
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Safety of Lithium Batteries Lithium ion batteries come in many variations. Advantages of the NCA are high specific power for exuberant acceleration and long life. The negatives are high cost and a lower safety margin than other Li-ion systems. Figure 2 outlines six of the most important characteristics of a battery in a spider web.
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When everyone is hunkering down and trying to stay warm its time to think about your lithium batteries.
The good news is that you can discharge or use your battery no matter how cold it gets, without worrying about damage. You will notice that your lithium battery is dying much quicker than it had in warmer months. When temperatures reach this low, below freezing, it temporarily reduces the capacity.
Coming in from the cold your hands can hurt while they warm up. The same thing goes for lithium batteries. When your batteries internal temperature drops below 32 degrees, the lithium cells are unable to accept the same amount of charging current (warmth) as they did when the temperature was warm. Don’t charge your lithium batteries when the battery temperature is below freezing.
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