While those are safe ambient air temperatures, the internal temperature of a lithium-ion battery is safe at ranges from -4℉ (-20℃) to 140℉ (60℃). So if you want to learn all about the safe ranges of temperatures for lithium-ion batteries, then this article is for you. Let’s get right into it! What is a Lithium Battery?
Any battery running at an elevated temperature will exhibit loss of capacity faster than at room temperature. That’s why, as with extremely cold temperatures, chargers for lithium batteries cut off in the range of 115° F. In terms of discharge, lithium batteries perform well in elevated temperatures but at the cost of reduced longevity.
That’s why, as with extremely cold temperatures, chargers for lithium batteries cut off in the range of 115° F. In terms of discharge, lithium batteries perform well in elevated temperatures but at the cost of reduced longevity. “It’s foolish to assume battery performance and longevity aren’t impacted by temperature,” summarized Cromer.
Li-ion batteries function optimally within a specific temperature range. The ideal operating temperature depends on the particular chemistry and design of the battery but generally falls between 15°C and 25°C (59°F and 77°F). This temperature range ensures the highest efficiency, capacity, and battery performance.
The temperature efficiency of a lithium-ion battery refers to its ability to maintain optimal performance within a specific temperature range, typically between 15°C to 35°C (59°F to 95°F). Is 40°C too hot for a battery? Yes, 40°C (104°F) is approaching temperatures that can negatively impact lithium-ion battery performance and longevity.
Charging lithium batteries at extreme temperatures can harm their health and performance. At low temperatures, charging efficiency decreases, leading to slower charging times and reduced capacity. High temperatures during charging can cause the battery to overheat, leading to thermal runaway and safety hazards.