Schumacher SC-8020A - Manual (Page 13)

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USiNg ThE BUiLT-iN BATTERy TESTER 14.
OVERViEW: This battery charger has a built-in battery tester that displays
either an accurate battery voltage or an estimate of the battery’s relative
charge based on the battery voltage and the Battery Council International
scale.
TESTING
14.1 SEqUENCE
There are four basic steps required to use the SC-8020A as a battery
tester:
1. Connect the battery clamps (see sections 6 and 7).
2. Connect the charger power cord to a 120V AC wall outlet (see section
8).
3. If necessary, press the BATTERy TyPE button until the correct type is
indicated.
4. Read the voltage on the digital display or press the DIGITAL DISPLAy
button to set the tester to BATTERy % and read the battery percent.
(See section 8.)
TESTER AND ChARgER 14.2
When first turned on, the SC-8020A operates only as a tester, not as a char-
ger. To continue to use it as only a tester, avoid pressing the BATTERY SIZE
button. Selecting a charge rate activates the battery charger and deactivates
the tester. Pressing the BATTERY SIZE button when the ENGINE START
LED is lit (except during the 180 second cool down) will shut off the charger
and activate the tester.
pOWER-Up iDLE TiME LiMiT
14.3
If no button is pressed within 15 minutes after the SC-8020A is first pow-
ered up, it will automatically switch from tester to charger, if a battery is
connected. In that case, the charger will be set for the SMALL BATTERy
SIZE and 12V AGM BATTERy TyPE.
TESTER WiThOUT TiME LiMiT
14.4
If either the DIGITAL DISPLAy or BATTERy TyPE button is pressed
within the first 15 minutes after the SC-8020A is powered up, it will remain
a tester (not a charger) indefinitely, unless a charge rate is selected.
TESTiNg AFTER ChARgiNg
14.5
After the SC-8020A has been changed from tester to charger (by selecting
a charge rate), it remains a charger. To change the SC-8020A back to a
tester, press the BATTERY SIZE button until all BATTERY SIZE LEDs are
all off.
TESTER STATUS LEDs
14.6
When the SC-8020A is operating as a battery tester, the status LEDs light
under the following conditions: