10
Operating Instructions
EEBC300A
7. Set Length of Charge Timer to HOLD.
8. Observe DC AMPS. Some reading should be evident.
—
If OK, allow to stabilize for 5 minutes. Recheck DC
AMPS reading.
—
If not, set Length of Charge Timer to OFF.
Determine reason for no reading. Correct before
proceeding.
9. Determine battery capacity. Capacity is usually marked
on battery and rated in:
—
Ampere-Hours (AH),
—
Reserve Capacity (RC), or
—
Cold Cranking Amps (CCA).
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✓
Battery capacity is used in step 10 to determine charge
time.
10. Determine charge time using
Chart 1.
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A battery charged 25% or lower may easily freeze,
charge immediately.
Chart 1: Determining Length of Charge using State of Charge and Capacity
STATE-OF CHARGE
STATE-OF-CHARGE
100%
75%
50%
25%
DEAD
6 & 12V Specific Gravity
1.260
1.225
1.185
1.140
1.110
12V Open Circuit Voltage
12.6
12.4
12.1
11.9
11.8
6 V Open Circuit Voltage
6.3
6.2
6.1
6.0
5.9
BATTERY CAPACITY
6V
Battery Voltage
12V
SMALL
MEDIUM
LARGE
Battery Capacity
SMALL
MEDIUM
LARGE
100
155
200+
Ampere hours
40
60
80+
160
275
430+
Reserve Capacity
60
90
100+
500
700
900+
Cold Cranking Amps
300
400
500+
LENGTH OF CHARGE TABLE
BATTERY CAPACITY
% CHARGE
BEGINNING AMPS CHARGE RATE
Small
0-25
45
30
30
25
25
20
25-50
30
20
20
15
15
10
50-75
15
10
10
10
5
5
Medium
0-25
70
50
45
40
35
30
25-50
45
30
25
20
20
20
50-75
25
15
15
15
10
10
Large
10-25
90
55
55
50
45
45
25-50
60
40
34
30
30
30
50-75
30
20
20
15
15
15
APPROXIMATE MINUTES OF CHARGE
15
30
45
60
75
90
