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BATTERY TEST CONTINUED
4.0 V Balance
4.1 To calculate V Balance, all four cell
voltages need to be collected. Perform the
cell commands below and execute the
“Check Read Status” SP 506 and “Get
Results” SP 507 after each command to
read the results.
The results returned will be a Hex number
with the bytes in reversed order. Convert this
number to decimal and write down the
results after each command. The highest
and lowest voltages will be used at the end of
the procedure to calculate the V Balance.
Cell commands needed for V Balance
SP 50B,3F - Cell One
SP 50B,3E - Cell Two
SP 50B,3D - Cell Three
SP 50B,3C - Cell Four
Note: “Read Status” and “Get Results”
commands need to be executed after each
of the Cell command.
Example -
SP 50B, 3F / SP 506 / SP 507
4.2 Determine V Balance using the following
calculation:
If V Balance is more than 70mV, the battery
should be replaced.
V_Balance = Max Cell Voltage - Min Cell Voltage
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