Schumacher SE-70MA User Manual
Page 14

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CALCULATING CHARGE TIME
12.
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.
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% charge prior
to recharging. Add more time for severely discharged batteries.
BATTERY SIZE/RATING
CHARGE RATE/CHARGING TIME
2 AMP
6 AMP 10 AMP 12 AMP 15 AMP 30 AMP
SMALL
BATTERIES
Motorcycle,
garden,
tractor, etc.
6 - 12 AH
2 - 4 hrs 45 min -
1 ¼ hrs
NR
NR
NR
NR
12 - 32 AH
4 - 10
hrs
1¼ – 3½
hrs
NR
NR
NR
NR
CARS/TRUCKS
200 - 315 CCA
40 - 60 RC
11 ¼
- 14 ½
hrs
3¾ – 4¾
hrs
2¼ – 3
hrs
2 – 2½
hrs
1½ – 2
hrs
45 min –
1 hr
315 - 550 CCA
60 - 85 RC
14 ½
- 18 ¼
hrs
4¾ – 6
hrs
3 – 3¾
hrs
2½ – 3
hrs
2 – 2½
hrs
1 – 1¼
hrs
550 - 1000 CCA 80 - 190 RC
18 ¼
- 34 ¾
hrs
6 – 11½
hrs
3¾ – 7
hrs
3 – 5¾
hrs
2½ –
4¾ hrs
1¼ – 2½
hrs
MARINE/DEEP CYCLE
80 RC
17½ hrs
6 hrs
3½ hrs
3 hrs
2½ hrs
1¼ hrs
140 RC
27 hrs
9 hrs
5½ hrs
4½ hrs
3½ hrs
1¾ hrs
160 RC
30 hrs
10 hrs
6 hrs
5 hrs
4 hrs
2 hrs
180 RC
33 hrs
11 hrs
6¾ hrs
5½ hrs
4½ hrs
2¼ hrs
MAINTENANCE INSTRUCTIONS
13.
After use and before performing maintenance, unplug and disconnect the
13.1
battery charger (see Sections 6, 7 and 8).
Use a dry cloth to wipe all battery corrosion and other dirt or oil from the
13.2
terminals, cords, and the charger case.
Ensure that all of the charger components are in place and in good working
13.3
condition, including the plastic boots on the battery clips.
Servicing does not require opening the unit, as there are no user-serviceable
13.4
parts.
STORAGE INSTRUCTIONS
14.
Store the charger unplugged, in an upright position. The cord will still conduct
14.1
electricity until it is unplugged from the outlet.
Store inside, in a cool, dry place (unless you’re using an on-board Marine
14.2
Charger).
Do not store the clips on the handle, clipped together, on or around metal, or
14.3
clipped to cables.