Deltran Battery Tender Junior Instructions Manual page 10

BATTERY TENDER JR TROUBLESHOOTING CHECKLIST
SYMPTOM
No Indicator lights are lit.
NOTE: The BTJR must
be connected correctly to
both the AC power outlet
and the battery before the
single LED will come on
and turn RED indicating
that a normal charge cycle
has begun.
The single LED turns
GREEN quickly at the
beginning of the charge
cycle.
Battery Tender JR will not
switch to storage charge.
The Red light seems to
stay on too long. The
green light "never" comes
on.
The charger light is on, but
not red or green.
If the charger ring terminals, alligator clips, or quick-connect terminals are corroded or damaged or
not making full electrical contact, or the battery posts are corroded, then: Disconnect charger
Note: Cleaning
cables from battery and clean the battery posts and the charger ring terminals, alligator clips,
Electrical
and/or quick-connect terminals. A number of non-acidic chemical products are available. One of
Contacts:
the simplest to use is baking soda and water. Use needle-nose pliers to widen the quick-connect
male pin contact area.
Remember that
the charger, the
battery, and the
vehicle electrical
system must all be
connected and
Clips or Rings
functioning
properly.
If your charger still has abnormal symptoms after trying the recommended remedies listed above, call or
email Deltran Customer Service or Technical Support. Most of the troubles encountered when recharging
batteries are due to poor quality or improper electrical connections between the battery and the charger.
POSSIBLE CAUSE
1 No AC power available.
Battery Tender JR clamps or rings
2
are hooked up incorrectly.
The fuse is blown in the ring
3
terminal or alligator clip harness.
4
Poor electrical contact.
Battery voltage is less than 3 volts. (A
5
12 volt battery may not recover from a
discharge this deep.)
1 Battery is already fully charged.
2 Battery may be defective.
3 Poor electrical contact.
The battery is large and takes a
1
long time to recharge.
2 Battery may be defective.
Excessive load is present on
3
battery during charge cycle.
1 Poor electrical contact.
2 Battery may be defective.
Vehicle Electrical System
Battery Tender JR
Positive Charge Current
Charge Current Return
NEG
Battery
Deltran Customer Service:
Phone 386-736-7900 Email service@batterytender.com
Insure AC power is available.
Reverse polarity of clamps.
Replacement fuse: Bussman Blade Type:
ATC-3 to ATC-7.5. (3A to 7.5A)
See notes on cleaning electrical contacts.
Disconnect all loads from battery (or battery
from vehicle), then reattach Battery Tender JR.
Wait no more than 3 seconds for solid red light
.
Disconnect the charger from the battery and
check the battery voltage with a voltmeter. It
battery voltage is at least 12.7 Volts, then it is
fully charged.
Have battery load tested.
See notes on cleaning electrical contacts.
Allow sufficient time for charge. See note
below.
Have battery load tested.
Remove load from battery or battery from
vehicle.
See notes on cleaning electrical contacts.
Have battery load tested.
Note: After the battery voltage reaches
14.4 volts, the Battery Tender JR will go
into the float / maintenance, storage mode.
POS
DMM
REMEDY