background image

 

 

STATUS INDICATOR LIGHTS: 

The following describes the 

indicator light operation:  

 

RED

  - FULL RECHARGE (Automatic): BULK & ABSORPTION: When 

the red light is on, the battery charger is in the process of fully charging 
the battery. 

GREEN FLASHING

 – ABSORPTION: When the green light is flashing, 

the charger is in the constant voltage absorption mode. The charger 
automatically switches to float maintenance when the charge current 
drops below 0.4 amps or 8 hours after the absorption mode begins. 

GREEN

 – CHARGE COMPLETE: FLOAT / MAINTENANCE:  When 

the green light is on and not flashing, and the red light is off, the battery 
charger is in the storage / maintenance mode.  In this mode the charger 
will maintain the battery at full charge by attempting to keep a constant 
voltage across the battery terminals.  If the battery becomes partially 
discharged due to an external current draw or excessive internal battery 
losses, the charger will automatically switch itself back to the full 
recharge mode of operation.

 

 

RED & GREEN Alternating 

– ERROR:  When the red and green light 

are alternating light is flashing, the most likely cause is either a high 
resistance connection between the charger and a battery with a voltage 
less than 12 volts, or the battery is sulfated.   

 

TROUBLESHOOTING CHECK LIST:   

 

1. 

NEITHER OF THE CHARGER LIGHTS TURN ON AFTER THE AC POWER 
PLUG IS CONNECTED TO THE AC ELECTRICAL OUTLET: 

 Check the 

charger AC power plug connection at the AC electrical outlet.  Verify that the AC 
electrical outlet is functioning properly by plugging in another appliance or a 
voltmeter.  

2. 

THE CHARGER GREEN LIGHT GOES ON IMMEDIATELY (within a few 
seconds) WHEN AC POWER IS APPLIED TO THE CHARGER:

  

The charger 

connections at the battery may be intermittent, the output fuse may be blown, the 
battery may be defective, or the battery might already be fully charged.  Note:  Since 
the battery charger is not spark proof, there is no way to determine if the green light 
indicates that the battery is fully charged, or if the charger output cables have an open 
circuit, either a fractured wire, a blown fuse, or a corroded, high resistance connection 
between the charger rings or clamps and the battery terminals.  However, when you 
first apply AC power to the charger, if the red light comes on but stays on for less than 
3 seconds and then the green light comes on, it is very likely that the charger output 
circuit is open.  Check fuses first. 

3. 

CHARGER IS CHARGING BUT THE GREEN LIGHT DOES NOT TURN ON 
IN A REASONABLE AMOUNT OF TIME:

  

The battery may be large and requires 

more time to fully charge than originally expected, there may be another appliance 
drawing electric power from the battery while it is charging, or the battery may be 
defective.  Also, a newly purchased battery may not be fully charged and may take 
longer to charge initially. 

4. 

THE RED LIGHT COMES ON AGAIN AFTER THE GREEN LIGHT WAS 
ALREADY ON:

  There may be another appliance drawing electric power from the 

battery causing its voltage to drop below the reset level.  The battery charger then goes 
back into full charge mode.  Also, the charger connections at the battery may be 
intermittent or the battery may be defective. 

 

 
 
SPECIFICATION SUMMARY:

 

 

Technical Specifications (12V6A & 24V3A Models) 

Input Voltage / Frequency 

100 to 132 VAC  /   50 / 60 Hz 

Input Current (Maximum) 

1.5 Amps RMS @ 100 VAC 

 

 

Output Current 

5 or 2.5 Amps DC 

Output Voltage 

12 or 24 Volts DC 

Charger Output Voltage Amplitudes throughout the entire 
charge algorithm, including absorption and float maintenance, 
are consistent with the optimum charging recommendations of 
the major lead-acid battery manufacturers. 

Maximum Operating Temperature

 

50 

°

C Typical

 

Charger Case Dimensions:  

Approx. 5.2 in  (132 mm) L 

(includes 0.2' total endplate thickness) x 5.0 in (127 mm) W x 
2.0 in (51 mm) H (at the highest point). 

 

Allow an additional 3 in 

(76.2mm) total (1.5 inch on each end of the length dimension) for safe 
bend of AC power cord strain relief and DC output cable harness.

 

Shipping Weight:

 Approx. 4.0 lbs (1.82 kg) with Accessories 

 

Declaration of Conformity:

  These battery charger products 

are designed to meet or exceed the specific requirements of:  
UL-1236 and CSA 22.2. These products are UL Listed in File 
E206016. 

Design Conformance & Revision: 

 All Deltran charger 

products are 100% inspected and electrically tested prior to 
shipment. All Deltran battery charger designs are proprietary 
and subject to change without notice.  Deltran makes no specific 
claims nor does it either make or imply any specific guarantee or 
warranty with respect to either the physical configuration or 
performance of any of the battery charger products listed herein, 
including suitability for purpose or merchantability. 

 

DELTRAN CORPORATION 

801 U.S. Highway 92 East 

DeLand, Florida 32724 

Phone 386-736-7900  FAX  386-736-0379 

www.batterytender.com

 

Reviews: