Inverter Application - Samlexpower Evolution EVO-2212 Owner's Manual

SECTIOn 1 |
Typical Flooded Lead-Acid Battery Chart - 80˚F / 26.7˚C
24V 12V
33.0
32.0
31.0
30.0
29.0
28.0
27.0
26.0
25.0
24.0
23.0
22.0
21.0
20.0
19.0
18.0
fig 1.4 charging / Discharging curves for typical flooded lead Acid battery
1.4.7
reduction in usable capacity at higher Discharge rates – typical in

inverter Application

As stated earlier, the Ah capacity of automotive battery is normally applicable at a discharge rate
of 20 hours. As the discharge rate is increased as in cases where the inverters are driving higher
capacity loads, the usable Ah capacity reduces due to "Peukert Effect". This relationship is not
linear but is more or less according to the Table 1.9.
Safety Instructions & general Information
16.5
16.0
15.5
15.0
14.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
9.5
9.0
0 10 20 30
Battery State of Charge in Percent (%)
CHARGE
40 50 60 70 80
C/5
C/10
C/20
C/40
C/100
C/20
C/10
DISCHARGE
C/5
C/3
90 100 110 120 130
SAMLEX AMErICA INC. | 19