To maximize the lifespan of your 48V lithium battery, store it in a cool, dry place away from direct sunlight and extreme temperatures. The ideal storage temperature is between 10°C and 30°C (50°F–86°F), with a relative humidity of 50–60%. Before long-term storage, charge the battery to about 50–70% to reduce stress on the cells. Avoid storing the battery completely full or completely empty for extended periods, as this can accelerate capacity loss. Disconnect it from the cart or any load during storage, and check the charge level every 3–6 months, topping up if it drops below 40%. Following these steps helps preserve performance and extends service life for years.