User Manual

3
This calculator has now been incorporated into the ESR meter
together with several other additional features such as charge state,
Low Cell voltage warning and Over Range warning.
This means that the user can now input the capacity of the LiPo into
the meter and read out the maximum safe current and the real
practical “C” value of the pack directly.
The new version of the meter reads:-
LiPo Pack Voltage.
LiPo Pack ESR ( Includes the resistance of leads + connector)
LiPo Cell Voltage for each individual cell.
LiPo Cell ESR – Cell only excluding leads and connectors with a
true Kelvin 4 wire connection.
LiPo Cell Charge state as a percentage of fully charged.
LiPo Cell Maximum safe continuous current for long pack life.
LiPo Cell Practical real “C” value. (displayed as “αC”)
Note: The user must input the pack capacity in mAh to read the two
last items.
*ESR stands for “Effective Series Resistance” It is conceptually a
more accurate term than “Internal Resistance” as it includes the
resistance of connectors and leads as well as the Internal Resistance
of the cells in “Pack” measurements.
In “Cell” mode it is purely the Internal Resistance of the Cell, as the
four terminal ‘Kelvin’ measurement system eliminates the effects of
all other resistance in the power circuit.