Schumacher SE-70MA - Manual (Page 5)

5
N. STORAGE
Store battery charger in a dry area.
The battery charger is designed to work automatically. However, If a problem does occur, check the following:
M. TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
No meter reading. Connections are reversed. With charger unplugged, reverse clamps and
reconnect (rock back and forth to bite in).
Poor electrical connection. Clean clamps and battery posts and reconnect
(Rock clamps back and forth to bite in.)
AC outlet is dead. Plug in a lamp or other appliance to check for
voltage.
Battery is defective (will not Have battery checked.
accept charge).
Charger will not turn on Battery recently charged as result Battery does not need charging.
(when properly connected of driving and is fully charged. (Turning on headlights will lower battery
to power. voltage in a few seconds and charger should
then turn on.)
Charger will not turn OFF. Battery has problem and will Have battery checked.
not take full charge.
Meter needle pulses Two or more batteries Do not parallel charge.
(fluctuates)every few connected in parallel.
seconds AFTER THREE HOURS
without slowing down.
Battery of 200 ampere hours Requires more time to charge: continue
or larger. charging.
Battery is connected to applicaton that
draws a small current (such as an
interior light).
Meter needle moves to extreme Severely discharged battery (but Allow charging to continue until battery has
right, remains a short time, then otherwise good battery). recovered sufficiently to take a charge. (Circuit
returns to zero, accompanied breaker will continue to cycle and needle will
by a clicking sound. swing side to side until battery has recovered.)
Battery is defective (will not accept Have battery checked.
charge).
Charger is cycling after circuit breaking Wait until charger automatically resets itself
overload. (DO NOT RETURN FOR SERVICE).
The approximate required time to bring a battery to full charge
state depends upon the number of ampere hours (AH) depleted
from the battery. AHs are determined by multiplying the number
of hours by the number of amps supplied to a load.
For example - If a load was connected to a battery, which drew 7
amps for a period of 5 hours, the battery will have supplied 35
AH. The approximate recharge time would then be calculated by
dividing the 35 AH depleted from the battery, by the ampere charge
rate of the charger. To allow for tapering off of the charge rate, add
25 percent to the charge time.
Indications of a fully charged battery are:
1. When the meter indicates an intermittent current flow to the
battery.
2. A hydrometer reading of the specific gravity of the electrolyte
(fluid) of a battery in good condition should be between 1.250
and 1.285.
3. When a battery reaches 80-85% of full charge, bubbles will
appear on the surface of the fluid. As the battery nears full
charge, bubbling will become more noticeably active.
4. The time required to charge two 6-volt batteries connected
in series will be the same as for one 12-volt battery of
equivalent size.
NOTE: This charger will shut off when the battery is fully
charged and will turn back on automatically when the battery
needs to be charged again.
5. Do not charge two 12-volt batteries in parallel.
L. CHARGE PERIOD