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PRODUCT BULLETIN                                             BATTERY CHARGERS
                                                                                        SERIES S4DB1FR & S4DB2FR
                                                                                      Sealed or Flooded Lead Acid Type, Case Size FR
                                                                                        Universal Input,  Desktop Type

CHARGERS FOR LEAD ACID BATTERIES, UNIVERSAL-INPUT
Single-Mode (Float Charge) and 3-Step-Charge (Fast charge) Versions

FEATURES
  • Universal input of  90 to 264 vac, 50/60 Hz.
  • Inherent input power factor correction.
  • Desktop style with IEC320 input plug.
  • Standard models for 12, 24, 36, and 48 volt batteries.
  • Charge currents of 3.2A for 12v, 1.6A for 24v, 1.1A for 36v, and  0.8A for 48v.
  • This charger circuit design controls the output peak voltage better than SCR-type chargers.
  • Thermally protected with thermal cutout within the transformer.
  • Uses unfiltered input power and output power is voltage limited and current limited; peak to average charge current ratio of 2.0 or less.
  • Temperature compensation options, with cost adders, are available with sensor either internal in charger or external next to battery.
  • Designed to meet safety agency requirements.


APPLICATIONS

  • These chargers are for industrial, computer, communications, commercial, and consumer applications.

APPLICATIONS (Cont'd)

  • Single mode (float charge) versions are for use when batteries are being used as standby in event of a power failure or when the charger is always connected to the battery during discharge.
  • 3-step (fast charge) versions are for use when batteries are repeatedly being discharged and recharged; and this version will rapidly re-charge batteries without danger of overcharge.
  • 3-step chargers are not typically connected to the battery during discharge to a connected  load.  See another Series of DYNAGE 3-step chargers that can be safely used to "fast charge" the battery during discharge to a connected load.


FLOAT CHARGERS - SINGLE-MODE
Desktop
Model No.
Input Voltage, VAC		 (1)
 

No. Batt. Cells

 (2)

End of Chg. Volts

 (3),(4)
 

Max. Chg. Amps
S4DB1FR13.8-3.2W9A3 S4DB1FR13.8-2.4W9A3 S4DB1FR13.8-1.6W9A3
90 to 264
 6      6      6  13.80 13.80 13.80 3.2(4)   2.4       1.6 
S4DB1FR27.6-1.6W9A3 S4DB1FR27.6-1.2W9A3 S4DB1FR27.6-0.8W9A3
90 to 264
 12    12    12  27.60 27.60 27.60 1.6(4)    1.2      0.8 
S4DB1FR41.4-1.1W9A3 S4DB1FR41.4-0.8W9A3 S4DB1FR41.4-0.6W9A3 90 to 264 18   18   18  41.40 41.40 41.40 1.1(4)    0.8       0.6 
S4DB1FR55.2-0.8W9A3 S4DB1FR55.2-0.6W9A3 S4DB1FR55.2-0.4W9A3
90 to 264
 24   24   24  55.20 55.20 55.20 0.8(4)   0.6       0.4 

3-STEP-CHARGERS - FAST CHARGERS
Desktop
Model No.
Input
Voltage,
VAC		 (1)
 

No. Batt. Cells

 (2)

Fast Chg. Max. Volts

 (3),(4)

Fast Chg. Max. Amps

 (2)

End of Chg. Volts
S4DB2FR14.7-3.2W9A3 S4DB2FR14.7-2.4W9A3 S4DB2FR14.7-1.6W9A3 90 to 264 6       6       6 
14.70 14.70 14.70
3.2(4)  2.4     1.6 
13.80 13.80 13.80
S4DB2FR29.4-1.6W9A3 S4DB2FR29.4-1.2W9A3 S4DB2FR29.4-0.8W9A3 90 to 264 12     12     12 
29.40 29.40 29.40
1.6(4)   1.2      0.8 
27.60 27.60 27.60
S4DB2FR44.1-1.1W9A3 S4DB2FR44.1-0.8W9A3 S4DB2FR44.1-0.6W9A3 90 to 264 18     18     18 
44.10 44.10 44.10
1.1(4)    0.8      0.6 
41.40 41.40 41.40
S4DB2FR58.8-0.8W9A3 S4DB2FR58.8-0.6W9A3 S4DB2FR58.8-0.4W9A3 90 to 264 24     24     24 
58.80 58.80 58.80
0.8(4)   0.6     0.4 
55.20 55.20 55.20
Footnotes:
(1)  Ask about special models for any number of cells not listed in the tables.
(2)  Special models can be offered with slightly lower (or higher) maximum voltage, if your battery requires.
(3)  Values of "charge currents" marked with (4) are the maximum for the case size.  Some models with lower charge current are also listed in the table.  If a different charge current is required for your application, "special models", with a cost adder, can be offered.
(4)  Derate the "maximum charge currents" listed in the table by 3% per degree C above 35 degrees C ambient.  If a higher ambient rating is required, specify the ambient level and get a quotation along with the new maximum charge current.
SPECIFICATIONS
(These specifications are subject to change at any time without notice)

Input:  90 to 264 vac, 47 to 63 Hz.
Output:  See Table of Models (above).  Customer can select "Single Mode" or "Dual Mode (3-stage
          Charge)" by a "B1" or "B2", respectively, in the model number as shown under "Model Number
          Selection Process" section below.
Output Current Waveshape:  Rectified sine squared waveform.
Output Voltage Waveshape:  DC level with superimposed ripple.
Regulation, End-of-Charge Peak Voltage:  ±1%, typical.
Regulation, Fast-Charge Peak Voltage:  ±2%, typical.
Regulation, Maximum Charge Current:  ±10%, typical; measured at 2 volts per cell output level at nominal
          line input (120 volts to 240 volts).
Fast-charge Cutback-of-Voltage Setpoint:  10% of rated maximum fast-charge current, typical.
LED Indication (Single Mode):  Red LED Is always "ON" but intensity is proportional to charge current.
LED Indication (Dual Mode):  Red LED is always "ON" but intensity is proportional to charge current.
          Green LED is "OFF" in fast-charge state, and "ON" in float-charge state.
Short Circuit Protection:  Can be operated into a short circuit indefinitely without damage.
Reverse Battery Voltage Protection:  Protection is provided if customer installs a suitable fuse in one of
          the output connection leads between the charger and the battery.
Temperature Compensation:  None in standard models, but option (see below) is available, with an
          appropriate cost adder, for -4mv per degree C per cell (typical).  Sensor location, selected by customer,
         can be either inside the charger case or external at the end of the output cord near the battery.
Ambient Temperature, Operating:  0º C to +35º C; derate output charge current by 3% per degree C for
          expected ambient temperature above +35º C based on maximum current rating for model with largest
          rating in table of models above.
Fuse Protection:  The input is fused with an internal fuse mounted on the circuit board.
Input Connections:  IEC320 male plug in the case; customer-furnished line cord with IEC320 female on one
          end to plug into the charger unit and with applicable plug on the other end to plug into wall
          recepatacle.
Output Connections:  6-ft output cord, 2 conductor, 20 AWG wire, with stripped ends, or, with appropriate
          cost adder, options for other selections for connector on output cord as listed below.
Size:  See outline drawings below.
Weight:  1.25 lbs. (0.57 kg).
Case (Enclosure):  Impact resistant black thermoplastic, with ventilation openings for convection cooling..


OPTIONAL FEATURES

Temperature Compensation:

Suffix "TI":  Provides compensation of charge voltage set points at rate of -4 mv per degree
          C.  Sensor is located inside battery charger case and can therefore deviate from battery
          temperature.  Add :TI" as a suffix to the model number (also see suffix "TE" below).
Suffix "TE":   Provides compensation same as suffix "TI" but sensor is at the end of the
          output cord so as to be adjacent to the battery.  This suffix requires an output cord
          with four (4) conductors.  Therefore the model number has to be changed as shown
          under "Model Number Selection Process" section below.
Output Cord Connector:  See selections offered below under "Model Number Selection Process".
Output Cord Wire:  See selections offered below under "Model Number Selection Process".
MODEL NUMBER SELECTION PROCESS
(Select from options listed below for each applicable section of the model number)

Example:  S4 D B2 FR 14.70 - 3.2 W 9 A 3 (Explanation indented to "start" directly under applicable section)

     Prefix:  S4: Switch-mode, universal input (90 to 264 vac, 47 to 63 Hz).
          Package:  D:  Desktop
                Output Type:  B1:  Single Mode (Float) Battery Charger
                                          B2:  Dual Mode (3-stage Charge) Fast Battery Charger
                         Case Size:  FR:  Desktop case, size (mm) 173 x 85.5 x 51.5
                                Rated Output Voltage, Volts:  Select from "Table of Standard Models"
                                                Rated Output Current, Amperes:  Select from Table
                                                        Input Plug Type:  W:  IEC320 male plug in case
                                                             Input Voltage & Frequency:  9:  90 to 264 vac, 47- 63 Hz
                                                                  Output Cord Connector:  A:  Stripped wires
                                                                                                                AC:  Alligator clips (Note 1)
                                                                                                                E:  Female barrel plug, 5.5 x
                                                                                                                         2.1 mm
                                                                                                                (Note: Other connectors
                                                                                                                     also avilable at extra cost)
                                                                        Output Cord Wire:  3:  20 AWG, 2-wire
                                                                                                             34: 20AWG,4-wire (Note 1)
Notes:
(1)  The above markings, "(Note 1)", designate models that are not standard and therefore will have cost adders if they are specified.
OUTLINE DRAWINGS
(Case FR)
( under construction )

 Last Modified March 19, 2000
Copyright © 1999, 2000 Oakleaf, Inc.