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Battery Life Formula

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Battery Life list their reserve capacity, which describes the approximate time for which they can run without recharging, on the label or in the user's manual. Check FAQs

BL = \frac{C}{I o}

BL - Battery Life?C - Battery Capacity?I_o - Battery Output Current?

Battery Life Example

With values

With units

Only example

Here is how the Battery Life equation looks like with Values.

Here is how the Battery Life equation looks like with Units.

Here is how the Battery Life equation looks like.

120000 = \frac{1000}{0.5}

120000min = \frac{1000Ah}{0.5A}

120000 = \frac{1000}{0.5}

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Battery Life Solution

Follow our step by step solution on how to calculate Battery Life?

FIRST Step Consider the formula

BL = \frac{C}{I o}

Next Step Substitute values of Variables

∴

BL = \frac{1000Ah}{0.5A}

Next Step Convert Units

∴

BL = \frac{3.6E+6As}{0.5A}

Next Step Prepare to Evaluate

∴

BL = \frac{3.6E+6}{0.5}

Next Step Evaluate

∴

BL = 7200000s

LAST Step Convert to Output's Unit

∴

BL = 120000min

Battery Life Formula Elements

Variables

Battery Life

Battery Life list their reserve capacity, which describes the approximate time for which they can run without recharging, on the label or in the user's manual.

Symbol: BL

Measurement: TimeUnit: min

Note: Value should be greater than 0.

Formulas to find Battery Life

Battery Capacity

Battery Capacity is defined as the total amount of electrical energy that can be stored in an array of electrochemical cells.

Symbol: C

Measurement: Battery CapacityUnit: Ah

Note: Value should be greater than 0.

Formulas to find Battery Capacity

Battery Output Current

Battery output current is defined as the total current supplied by the electrochemical battery to the load connected across it.

Symbol: I_o

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Battery Output Current

Other formulas in Battery Life category

Go Battery Life in Days

T days = \frac{C}{24 \cdot I o}

Go Battery Life in Months

T month = \frac{C}{30 \cdot I o}

Go Battery Life in Years

T year = \frac{C}{365 \cdot I o}

Go Battery Life given Voltage and Power

T hour = \frac{C \cdot V}{P out}

How to Evaluate Battery Life?

Battery Life evaluator uses Battery Life = Battery Capacity/Battery Output Current to evaluate the Battery Life, Battery Life estimates how long a battery will last, based on nominal battery capacity and the average current that a load is drawing from it. Battery capacity is typically measured in Amp-hours (Ah) or milliamp-hours (mAh), although Watt-hours (Wh) is occasionally used. Battery Life is denoted by BL symbol.

How to evaluate Battery Life using this online evaluator? To use this online evaluator for Battery Life, enter Battery Capacity (C) & Battery Output Current (I_o) and hit the calculate button.

FAQs on Battery Life

What is the formula to find Battery Life?

The formula of Battery Life is expressed as Battery Life = Battery Capacity/Battery Output Current. Here is an example- 2000 = 3600000/0.5.

How to calculate Battery Life?

With Battery Capacity (C) & Battery Output Current (I_o) we can find Battery Life using the formula - Battery Life = Battery Capacity/Battery Output Current.

Can the Battery Life be negative?

No, the Battery Life, measured in Time cannot be negative.

Which unit is used to measure Battery Life?

Battery Life is usually measured using the Minute[min] for Time. Second[min], Millisecond[min], Microsecond[min] are the few other units in which Battery Life can be measured.

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Battery Life Formula

Battery Life Example

Battery Life Solution

Battery Life Formula Elements

Other formulas in Battery Life category

How to Evaluate Battery Life?

FAQs on Battery Life

Variable Name