LFP Battery Module – Product Manual
All rights reserved genZ 2020
Issued for Use
Revision
Page
4/03/2020
2.1
16 of 25
To determine the battery capacity, the below process should be conducted by a suitably qualified
professional:
Fully discharge the battery at 0.5C until the low voltage cut-off is reached
Fully charge the battery at the recommended voltage and 0.5C rate for 24 consecutive hours
Fully discharge the battery at a constant 0.5C until the low voltage cut-off is reached.
Perform this at an ambient temperature between 23°C and 27°C. Record the number of
hours it takes to reach low voltage cut-off point.
Fully charge the battery at the recommended voltage and 0.5C rate for 24 consecutive hours
The test is now complete
The percentage of rated capacity can now be calculated as:
Percentage of rated capacity (%) = [[(0.5 x C) x hours to discharge] /C ] * 100
Where:
C = Rated Capacity (Amp Hours)
Example:
48V 3kWh battery module has a rated capacity of 57.6Ah
0.5C equates to a constant current load of 28.8Amps
The battery is discharged at a constant 28.8Amps until it reaches cut-off, which takes 1.6 hours.
So:
[((0.5 x 57.6) x 1.6) / 57.6] x 100 = 80%
9.4
Warranty or Service
In the unlikely event that you believe the module is faulty, contact the place of purchase or
dealer/distributor first. If you cannot reach your dealer, or if they cannot resolve the issue please visit
the genZ web site at www.genz.com.au for contact details for technical support.
Please ensure that you have the following information available:
a)
Where and when the unit was purchased.
b)
The model number.
c)
Serial number of your module.
d)
Information on the nature of the failure.
http://www.genz.com.au
