LiFePO₄ batteries show lower usable capacity in cold weather. When temperature is around 0–5°C, the discharge efficiency may drop by 20–30%, which is normal for all lithium iron phosphate cells. Please test the battery at room temperature (15–25°C) and the capacity will return to normal. This is not a quality issue but a temperature-related characteristic.

"Low temperatures (0-5°C) may temporarily reduce capacity, which is a normal phenomenon."

Temperature Impact on Performance
LiFePO₄ cell performance fluctuates with ambient temperature changes:

25°C: 100% capacity

5°C: Available capacity decreases by approximately 10–15%

0°C: Available capacity decreases by approximately 20–30%

-10°C: Decrease of 30–40%

Cold weather does not affect battery health or lifespan; it only temporarily reduces output capability. Performance returns to normal when restored to room temperature.