Calculating Charge Time - DieHard 200.71240 Operator's Manual

12.

CALCULATING ChARGE TIME

12.1 The Chart Method
Use the following table to more accurately 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 Capacity
(RC), Cold-Cranking Amps (CCA), or both.
• Marine or deep-cycle batteries are usually rated in Reserve Capacity
(RC).
• NR means that the charger setting is NOT RECOMMENdEd.
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 rate prior to recharging. Add more time for severely
discharged batteries.
BATTERY SIZE/RATING
SMALL
BATTERIES
CAR/TRUCKS
MARINE/DEEP CYCLE
Motorcycle, gar-
den, tractor, etc.
200 - 315 CCA
315 - 550 CCA
550 - 1000 CCA
ChARGE RATE/
ChARGING TIME - hOURS
2 AMP
6 - 12 AH
12 - 32 AH
40 - 60 RC
60 - 85 RC
85 - 190 RC
80 RC
140 RC
160 RC
180 RC
12
• •
50 AMP
2 - 4
4 - 10
11 - 14 30 to 45 min.
45 min - 1
14 - 18
18 - 35 1 - 2 hours
18
27
30
33
NR
NR
hour
NR
NR
NR
NR