12/23/2023 0 Comments 80ah juicebox lithium battery![]() ![]() ![]() However, if the output value of the charger is mentioned in watts (W) or watt-hours (Wh), enter the battery capacity in watt-hours (Wh). ![]() Note: Enter the battery capacity in Ah or mAh if the charger current output is mentioned in amps (A) or milliamps (mA). 2: lithium battery charge time using battery chargerĪdvertisements Formula: charge time = (battery capacity × depth of discharge) ÷ (charge current × charge efficiency) Note: The charging time will be in peak sun hours (PSH). Like the battery charge rate (the faster the charge rate is the less efficient it is) and the battery depth state of charge (SOC).Ĭharge controller efficiency - PWM: 80%, MPPT: 98%īattery capacity in watt-hours (Wh) = Battery Ah × Battery volts Example Note: In real world, the battery charge efficiency rate will not be fixed and will depend on a number of factors. Lithium battery charge efficiency: 90 - 95% ( Source) 1: lithium battery charging time with solar panelsįormula: charge time = (battery capacity Wh × depth of discharge) ÷ (solar panel size × Charge controller efficiency × charge efficiency × 80%)īattery depth of discharge (DoD): Battery Depth of discharge refers to the percentage of a battery that has been discharged relative to the overall capacity of the battery. How do you calculate lithium-ion battery charging time? AdvertisementsĪdvertisements Here are the methods to calculate lithium (LiFePO4) battery charge time with solar and battery charger. For example, 2A, 4A, 10A, 20A etc.Ĥ- Click "Calculate charge time" button for the result. For example, if your battery is discharged at 80%, enter 80.ģ- Enter the charge current and select the unit type from the list. For an instant, If you have a small battery in mAh capacity, select mAh and enter the capacity.Ģ- Enter the battery depth of discharge (DoD): Battery Depth of discharge refers to the percentage of a battery that has been discharged relative to the overall capacity of the battery. How to use this calculator? Advertisementsġ- Enter the battery capacity and select the unit type from the list. For kilowatt-hours (kWh): If the battery capacity is mentioned in kilowatt-hours (kWh), Divide the kWh numbers by the battery voltage and then multiply it by 1000.For watt-hours (Wh): If the battery capacity is mentioned in watt-hours (Wh), divide the Wh numbers by the battery voltage (which will be mentioned in the specs sheet).Note: If the battery capacity is mentioned in watt-hours (Wh) or kilowatt-hours (kWh), follow the below steps. ![]() Are you using a PWM or an MPPT charge controller? Choose accordingly.Įxample: How Long Does It Take To Charge A 12V Lithium Battery? If you have multiple solar panels connected together, add up their rated wattage and enter the number (2 x 100W = 200W). For example, if your battery is discharged at 80%, enter 80.
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