Manual
Operation Manual for
ZeMa Single Cells
Prepared on: 23-11-2022
Prepared by: GBA
Released on: 04.01.2023
Released by: -
Revised on: -
Index: _-
Distributed to: customer (public)
Pages: 17/35
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Rail Engineering
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Figure 5 : Temperature compensated charging voltage
Adjust the setting of the manual temperature compensation with a negative gradient of
-4m V/°C / cell for the temperature range from -25 °C to 40 °C. This corresponds to
-48m V/°C for a 24V battery system.
The allowed tolerances ±1% for the respective constant voltage charging U
Rail
remains.
Example:
A 24V-Battery with low cyclic use (2.30 Vpc) and an average electrolyte temperature of
10 °C would be charged with 28.08 V.
12 cells * 2.30 Vpc + (-10 °C * -0,048 V/°C) = 28.08 V
Attention!
Increased operating temperatures
will lead
to premature aging
of
accumulators.
Practical tests show that an increase of 10 °C of the battery temperature from the nominal
temperature of 20 °C causes a 50% reduction on service life.