E T X S E R I E S L I T H I U M B A T T E R I E S
10
Self-discharge Rates
The self-discharge rate is dependent on temperature. At high temperatures (>25°C), the
cell internal resistance decreases so the self-discharge rate increases. See the graph below
for self-discharge rates (in % per month) versus temperature.
0
20
40
60
80
100
-40
-30
-20
-10
0
10
20
30
40
%
o
f Peak
C
ran
ki
n
g Am
p
s
Temp Deg C
Cranking Amps vs Temp
Lithium
Lead Acid
-30
-20
-10
0
10
20
30
40
50
0
1
2
3
4
5
6
7
Tem
p
e
ratu
re
D
e
g
C
Discharge Rate (%/Month)
Self Discharge Rate vs Temp
