How much is 450mAh in the battery life

Calculate battery runtime, battery operating time, operating time,

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How long a battery can be used or discharged depends on these important factors: How high is the discharge current? What is the capacity of the accumulator? What is the ambient temperature? What chemical system is the battery based on (lead battery / Li-Ion, NiCD / NiMH)? What is the current state of charge? If the discharge current is higher than specified in the technical specification, the service life is drastically reduced.

Calculate the battery performance

Calculation of the battery power, how long a battery would theoretically work with an electrical consumer. The calculation is only valid for a constant consumer e.g. incandescent lamp, if the battery is discharged like a pulse, these are only guidelines. The battery should last longer with a pulse discharge. The calculation are only theoretical values.

End-of-discharge voltages at room temperature (approx. 20 ° C) for the following batteries:


Lead-gel batteries:about 1.75 volts per cell
NiCD / NiMH batteries:approx. 0.8 / 0.9 volts per cell
Lithium-ion batteries:approx. 2.5 - 2.8 volts per cell
Lithium polymer batteries:approx. 2.5 - 2.8 volts per cell

Loss of battery power due to deep discharge

Please note that deep discharge destroys the battery in most cases. The NiCD battery is still the most robust. It has been shown that rechargeable batteries based on NiCD can often be reanimated after being deeply discharged by charging and discharging several times.

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