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OUOD006,000005A –19–18AUG04–1/1
Estimating Battery Recharge Time
TYB4797 –19–18AUG04
Estimating Recharge Time
1. Use table to determine time needed to completely
recharge battery based on battery type, present state
of charge, and charging rate (amps).
2. If recharge time cannot be estimated from the table,
calculate recharge time using the following formula:
Recharge capacity (minutes) x 0.6 x 1.25 ÷ charge rate
(amps) = approximate hours needed to recharge a
totally discharged battery.
EXAMPLE:
80 x 0.6 x 1.25 ÷ 10 = 6 hours
NOTE: Example uses an 80 minute reserve capacity
battery and 10 amp charge rate.
When battery is not totally discharged, adjust charge
time estimate using % DISCHARGED figure for
calculation.
EXAMPLE:
6 hours x 0.75 = 4.5 hours
NOTE: Example shows adjusted time when battery is
25% charged (75% discharged). If battery was
75% charged, discharged figure of 0.25 would be
used in adjusted calculation to arrive at 1.5 hours.
10-4
091604
PN=15