Calculating Charge Time - Sears 200.71206 Owner's Manual

The Chart Method
Use the following table to more accu-
rately determine the time it will take to
bring a battery to full charge.
First, identify where your battery fits into
the chart.
• Small batteries — motorcycles,
garden tractors, etc. — are usually
rated in Ampere Hours (AH). For
example; 6 to 12 AH, or 12 to 32 AH.
• Batteries in cars and smaller trucks
are usually rated in Reserve Capac-
ity (RC), Cold-Cranking Amps
(CCA), or both.
BATTERY SIZE/RATING
SMALL
BATTERIES
CAR/TRUCKS
MARINE/DEEP CYCLE
The Hydrometer or Electronic Method
To find the time needed to fully charge your battery, determine the battery's charge
level with a hydrometeror electronic Percent-of-Charge Tester. The following table
will help you convert hydrometer readings to percent of charge values.
SPECIFIC
GRAVITY
1.265
1.225
1.155
1.120

CALCULATING CHARGE TIME

Motorcycle, garden
tractor, etc.
200 - 315 CCA
315 - 550 CCA
550 - 1000 CCA
PERCENT
OF CHARGE
100%
75%
25%
0%
• Marine, or deep-cycle batteries are
usually rated in Reserve Capacity
(RC).
• NR means that the charger setting is
NOT RECOMMENED.
Find your battery's rating on the chart
below and note the charge time given
for each charger setting.
The times given are for batteries with a
50-percent charge prior to recharging.
Add more time for severely discharged
batteries.
CHARGE RATE/CHARGING TIME - HOURS
2 AMP
2 - 4
6 - 12 AH
4 - 10
12 - 32 AH
11 - 14
40 - 60 RC
14 - 18
60 - 85 RC
18 - 35
85 -190 RC
18
80 RC
27
140 RC
30
160 RC
33
180 RC
PERCENT OF
CHARGE NEEDED
100%
9
6 AMP
NR
NR
4 - 5
5 - 6
6 - 12
6
9
10
11
0%
25%
75%
Continued...