Narada Power Source Co., Ltd. EosG series operation manual V3.7
18
The capacity will increase when temperature rises. For example the capacity will increase 5%
if temperature raise 10 . But it wi
℃
ll quicken up plates’ corrosion and water loss if temperature
rises, shortens battery’s life.
Fig.3-1 Available Capacity (10h rate) Curve VS. Ambient Temperature
z
Temperature and Floating Voltage, Equalization voltage
The purpose of choosing certain floating voltage is to reach the designed life and rated
capacity of the battery. If the floating voltage is higher, then the floating current is also higher;
it will accelerate the corruption the grid and shorten the life of the battery. If the floating
voltage is lower, the battery can’t be kept in fully charged state, this will crystallize PbSO
4
,
decrease the capacity, and also shorten the life of the battery.
At 25
℃
, if the floating voltage is 2.25V/cell, In other degree, please adjust according to Table
3-2. Polymer gel battery need to carry the equalizing charge regularly, in order to guarantees
the battery normal operation. At 25 ,
℃
NARADA battery’ s Equalization voltage is 2.35V
～
2.40V/cell. It needs to be changed by ambient temperature, the temperature compensation
coefficient is-5mV/ /cell.
℃
Table 3-2 Relationship of ambient temperature and voltage
Ambient
Temperature
( )
℃
Float Voltage
（
V/cell
）
Equalization
voltage
（
V/cell
）
5 2.31 2.45
10 2.30 2.43
15 2.28 2.40
20
2.27 2.38
C
ap
ac
it
y
Ambient Temperature
（℃）
