Schumacher DY-1420 User Manual
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CALCULATING CHARGE TIME
12.
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% charge prior to recharging.
Add more time for severely discharged batteries.
NR means that the charger setting is NOT RECOMMENDED.
BATTERY SIZE/RATING
CHARGE RATE/CHARGING TIME
2 AMP
20 AMP
55 AMP
SMALL
BATTERIES
Motorcycle,
garden,
tractor, etc.
6 - 12 AH
2 – 3¾ hrs
NR
NR
12 - 32 AH
3¾ – 10 hrs
NR
NR
CARS/TRUCKS
200 - 315 CCA
40 - 60 RC
11¼ – 14½
hrs
1 – 1½ hrs 25 - 32 min
315 - 550 CCA
60 - 85 RC
NR
1½ – 2 hrs 32 - 40 min
550 - 1000 CCA 80 - 190 RC
NR
2 – 3½ hrs 40 - 76 min
MARINE/DEEP CYCLE
80 RC
NR
1¾ hrs
NR
140 RC
NR
2¾ hrs
NR
160 RC
NR
3 hrs
NR
180 RC
NR
3¼ hrs
NR
MAINTENANCE INSTRUCTIONS
13.
After use and before performing maintenance, unplug and disconnect the battery
13.1
charger (see sections 6, 7 and 8).
Use a dry cloth to wipe all battery corrosion and other dirt or oil from the battery clips,
13.2
cords, and the charger case.
Ensure that all of the charger components are in place and in good working condition,
13.3
for example, the plastic boots on the battery clips.
Servicing does not require opening the unit, as there are no user-serviceable parts inside.
13.4
All other servicing should be performed by qualified service personal.
13.5
MOVING AND STORAGE INSTRUCTIONS
14.
Store the charger unplugged, in an upright position. The cord will still conduct electricity
14.1
until it is unplugged from the outlet.
Store inside, in a cool, dry place.
14.2
Do not store the clips on the handle, clipped together, on or around metal, or clipped to
14.3
the cables.
If the charger is moved around the shop or transported to another location, take care to
14.4
avoid/prevent damage to the cords, clips and charger. Failure to do so could result in
personal injury or property damage.
TROUBLESHOOTING
15.
PROBLEM
POSSIBLE CAUSE
REASON/SOLUTION
Charger will not turn on when
properly connected.
AC outlet is dead.
Poor electrical connection.
Check for open fuse or circuit
breaker supplying AC outlet.
Check power cord and
extension cord for loose
fitting plug.
The battery is connected and
the charger is on, but is not
charging.
Clips are not making a good
connection.
Check for poor connection at
battery and frame. Make sure
connecting points are clean.
Rock clips back and forth for
a better connection.