DieHard 200.71234 소유자 매뉴얼 - 페이지 12
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Calculating
charge times
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, 12, 32 AH etc.
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 RECOM-
MENDED.
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 dis-
charged batteries.
SMALL
BATTERIES
CAR/TRUCKS
Motorcycle, garden
tractor, etc.
200 - 315 CCA
315 - 550 CCA
550 - 1000 CCA
MARINE/DEEP
CYCLE
6-12AH
12 -32 AH
40 - 60 RC
60 - 85 RC
85 -190 RC
80 RC
140 RC
160 RC
180 RC
2-4
4-10
11 -14
14-18
18 -35
18
27
3O
33
NR
NR
60 - 90 min.
90 - 120 min.
2 - 3.5 hrs.
105 min.
2 hrs, 45 min.
3.0 hrs.
3.5 hrs.
NR
NR
20 - 30 min.
30 - 40 min.
45 - 60 min.
NR
NR
NR
NR
The Hydrometer
or Electronic
Method
To find the time needed to fully charge your battery,
determine the battery's charge level with a hydrometer
or electronic Percent-of-Charge
Tester. The following
table will help you convert hydrometer readings to
percent of charge values.
1.265
100%
0%
1.225
75%
25%
1.155
25%
75%
1.120
0%
100%
When you know the percent of charge and the Amp
Hour (AH) rating of your battery, 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:
Amp Hours = Reserve Capacit_L + 16
2
NOTE: The Reserve Capacity can be obtained from
the battery specification sheet or the owner's manual.
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, 20 or 60
amps).
Multiply the result by 1.25 and you'll have the time
needed, in hours, to bring the battery to full charge.
Add one additional hour for a deep-cycle battery.
Example:
Amp Hour Ratinq x % of charqe needed x 1.25 = hours
Charger Setting
of
charge
100 (AH Rating) x .50 (charge needed) x 1.25 =
3.125
20 (Charger Setting)
hours
100 x .50 = 2.5 x 1.25 = 3.125
20
You would need to charge your lO0-Ampere Hour
Battery for a little more than 3 hours at the 20-Amp
charge rate using the above example.
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