Calculating Charge Time (Continued)
SAFETY
OPERATION
When you know the percent of charge and the AmpHour (AH) rating of your battery, you can calculate the approx- imate time needed to bring your battery to a full charge.
To convert Reserve Capacity to Amp Hour (AH) Rating, divide Reserve Capacity by 2, and add 16:
AH = Reserve Capacity + 16
2
To calculate time needed for a charge:
•Find the percent of charge needed.
(A battery at 50 percent charge that will be charged to 100 percent needs another 50 percent (.50).
•Multiply the Amp Hour rating by the charge needed (.50) and divide by the charger setting (2 or 6 amps).
•Multiply the result by 1.25 and you’ll have the approximate time needed, in hours, to bring the battery to full charge.
•Add one additional hour for a deep- cycle battery.
TROUBLESHOOTING MAINTENANCE
PARTS
CONVERSION EXAMPLE:
(Amp Hour Rating x % of Charge Needed )x 1.25 = Hours of Charge Charger Setting
or
(100 (AH Rating) x .50 (charge needed) )x 1.25 = 10.4 Hours 6 (Charger Setting)
or
(100 x .50)8.33 x 1.25 = 10.4 6
You would need to charge your
hours at the
10
