Lipo-Rechner

Description

Manufacturers usually print a completely fictitious C value on their packaging, with which one cannot do anything.

With the tool you can calculate a "real" C-value.

This is calculated using the internal resistance and the capacity and determines the maximum continuous load capacity.

Good chargers can determine the internal resistance of the battery when charging.
A constant ambient temperature of 22°C is important for the measurement.

For the calculation you only need the capacity of the battery in mAh, the internal resistance in mOhm and the number of cells.
The following values ​​are calculated:
C-value, Max. current, Watt-hours, V-drop/cell, V-drop total and a FOM value.

Explanation of the values:
Capacity:
The capacity of your LiPo in mAh.

Internal cell resistance:
The measured internal resistance of the cell. Good chargers can determine this when charging.
A constant ambient temperature of 22°C is important for the measurement.
Use the checksum if you have different values ​​in the cells.

number of cells:
Number of cells in a battery. The indication "4S" on the battery means that the battery has 4 cells.

C value ø:
The "real" C value of the battery is calculated using the internal cell resistance and the capacity.
It is a "worst case scenario" calculation, so you are on the safe side.

FOM:
FOM means Figure of Merit and is a type of performance index. The value 1.0 stands for a good, solid battery.
The lower the value, the worse the performance and condition. If it is above 1.0, the battery is above average.

Max current:
The calculated, maximum recommended load value of the battery to protect it from overloading, overheating and damage.

V drop / cell:
Voltage drop across cell at max current.

Total V Drop:
Battery voltage drop at max current.

All information is subject to change and is based solely on calculations and conservative calculations.
I assume no liability for the correctness, completeness and timeliness of this information.