Saft SBL - 8.4 Charge Efficiency; 8.5 Temperature Effects on Charging; 8.6 Commissioning Charge

These graphs gives the recharge time
for a current limit of 0.2C
5
amperes.
Clearly, if a lower value for the current
is used, e.g. 0.1C
5
amperes, then the
battery will take longer to charge.
If a higher current is used then it will
charge more rapidly but, does so less
efficiently, and so this is not a
pro-rata relationship.
The charge time for an M type plate
at different charge regimes for a fixed
voltage is given in Figure 6(d).
If the application has a particular
recharge time requirement then this
must be taken into account when
calculating the battery.
21
Figure 6(c) - Typical recharge times from a fully discharged state for the L block
130
120
110
100
90
80
70
60
50
40
30
20
10
0
05101520253035
Available Capacity (% of rated capacity)
Charging Voltage
1.50 volts per cell
Charge Time (hours)
Charging Voltage
1.40 volts per cell
Charging Voltage
1.45 volts per cell
Charging Voltage
1.55 volts per cell
Current Limit 0.2 C 5 A
Temperature + 20/25 ° C
L type
Figure 6(d) - Typical recharge times for different charge rates for the M block
110
100
90
80
70
60
50
40
30
20
10
0
0 5 10 15 20 25
Available Capacity (% of rated capacity)
Charging current 0.5 C5A
Charge Time (hours)
M type
Charging current 0.2 C5A
Temperature + 20/25 ° C
Charge Voltage 1.50 volts per cell
Charging current 0.1 C5A
BlockBat 3/11/98 10:12 Page 26
Home Back Home Back Home Back
Home
Back
Contents