How to Calculate Lithium Battery Discharge Time Accurately
Lithium battery discharge time is calculated by dividing battery capacity (Ah) by load current (A). Adjust for efficiency losses (typically 15-25%) and environmental factors.
Convert C-rating in amps. Note: Use our solar battery charge time calculator to find out the battery charge time using solar panels. If the C-rating is mentioned as C/n (any number), in this case, C = 1. (E.g, C/2 = 1/2 = 0.5C). how to use this calculator? 1 - Enter the battery capacity and select the unit type.
There are numerous applications for the Battery Charge and Discharge Calculator. For instance, it aids in planning the battery capacity required for solar energy systems, ensuring that stored power meets household needs. In electric vehicles, it helps optimize charging schedules, extending battery life and maximizing range.
For example, normally lead-acid batteries are designed to be charged and discharged in 20 hours. On the other hand, lithium-ion batteries can be charged or discharged in 2 hours. You can increase the charge and discharge current of your battery more than what's recommended. But, as a result, this will affect the charge or discharge time period.
Discharge time (hours)=Battery Capacity (Ah)÷Load Current (A) Please note that the working temperature and environment can affect the load current and, consequently, the battery discharge time. To account for these factors, use the adjusted formula: Discharge time (hours)=Battery Capacity (Ah) x 0.8（Cardinal Ratio) ÷ Load Current (A)
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