Page 350 - Battery Reference Book

Other characteristic curves 30121

Table 30.4 Service capacity of Union Carbide carbon-zinc Leclanche cells
Cell Starh'ng Service Cell Starting Service
drain capacity drain capacity
WL) (h) (d) (h)
-
N 1.5 320 114 0.7 300
7.5 60 3.5 57
15.0 20 7.0 25
AAA 2.0 350 117 0.8 475
10.0 54 4.0 98
20.0 21 8.0 49
AA 3.0 450 118 0.8 525
15.0 80 4.0 110
30.0 32 8.0 54
B 5.0 420 127 1 .o 475
25.0 85 5 .O 150
50.0 32 10.0 72
C 5.0 520 132 1.3 275
25.0 115 6.5 40
50.0 53 13.0 16
D 10.0 525 135 1.3 550
50.0 125 6.5 108
100.0 57 13.0 52
F 15.0 630 148 2.0 612
75.0 135 10.0 150
150.0 60 20.0 60
G 15.0 950 155 5.0 620
75.0 190 15.0 170
150.0 78 30.0 74
6 50.0 750 161 3.0 500
250.0 210 15.0 120
500.0 95 30.0 55
55 15.0 635 165 3.0 770
75.0 138 15.0 200
150.0 61 30.0 90
105 0.4 210 172 5.0 780
2.0 30 25.0 200
4.0 8 50.0 90
I09 0.6 710 175 5.0 1000
3.0 155 25.0 260
6.0 75 50.0 110
112 0.7 210
3.5 35
7.0 12

uses cells in parallel, dividing the current drain the 30.6.5 Energy dependence on temperature
battery is supplying by the number of parallel strings curves
of cells and looking up this value of current will give
the service life. The useful energy content of a battery is designated in
Figure 30.56 shows actual capacities expressed watt hours and is the product of ampere hour capacity
as a function of discharge current of an LC0l and the average discharge voltage. To enable compar-
lithium-copper oxide cell at three temperatures isons to be made between one battery and another this
compared with a zinc-manganese battery of the is often expressed as W h/dm3 on a volumetric basis
same size. or W hlkg on a weight basis.