Maintenance Instructions - Schumacher INC-2405A Owner's Manual

Specific Gravity
When the percent of charge and the Amp Hour (AH) rating of your battery
is known, you can calculate the approximate time needed to bring your
battery to a full charge.
To convert Reserve Capacity to Amp Hours, divide Reserve Capacity by 2,
and add 16:
Example:
Amp Hour Rating = Reserve Capacity + 16
NOTE: The Reserve Capacity can be obtained from the battery specifica-
tion sheet or the owner's manual.
To calculate the time needed for a charge:
1. Find the percent of charge needed (a battery at 50 percent charge that
will be charged to 100 percent needs another 50 percent (.5).
2. Multiply the Amp Hour Rating by the charge needed (.5) and divide by
the charger setting (5 amps).
3. Multiply the results by 1.25, and you will have the total time needed, in
hours, to bring the battery to a full charge.
4.
Add an additional hour for a deep-cycle battery.
Example:
Amp Hour Rating x % of charge needed x 1.25 = hours of charge
100 (AH Rating) x .50 (charge needed) x 1.25 = 12.5 hours
5 (Charger Setting)
100 x .50 x 1.25 = 12.5
5
A 100-Ampere Hour Battery must charge for 12 ½ hours when using the
above example.
15.

MAINTENANCE INSTRUCTIONS

15.1
Before performing maintenance, unplug and disconnect the battery char-
ger (see sections 6.7 and 7.6).
15.2 After use, unplug the charger and use a dry cloth to wipe all battery corro-
sion and other dirt or oil from the terminals, cords, and the charger case.
1.265
1.225
1.155
1.120
Charger Setting
Percent of Charge
100%
75%
25%
0%
2
8
• •
Percent of Charge
Needed
0%
25%
75%
100%