Summary: Most high power battery chargers have
significant 60 or 120 Hz ripple and noise. Others used pulse charging
technology. This causes havoc with systems such as audio systems that would
like a nice, clean voltage. These chargers are designed to charge a battery at
high power, but very quietly.
Suggested Applications: Wherever a
high power 24 volt battery charger is used, for example in in Audio Displays,
Demo & Show Vehicles Marine & Recreational Vehicles; Battery
maintenance & storage, Retail Store Displays, Industrial Applications,
Communications (available in 12V, 36V and 48V output).
 These chargers are the famous DLS
power supply with 24 Volt taper charging charging built-in. The optional
APS-IQ4 charge controller allows the APS Power Supply to operate as an
automatic 3-stage “smart charger.” This gives a sophisticated charger
with Bulk, Absorption, and Float stage charging, increasing the charging
capacity of the APS Power Supply to decrease charge times, insuring proper and
safe battery charging and eliminating over-charge. This “intelligent”
technology monitors the battery at all times.
These AC input switchmode chargers
are ideally suited for the mobile environment. These power supplies feature
regulated and filtered outputs which allow for clean audio demonstrations
without the slightest hint of noise.
Their low profile design allows
for convenient mounting under a display vehicle or behind a display board. When
combined with a high quality battery, APS units can supply transient surges up
to 1000 amps.
In maintenance mode the charger
is left connected to the battery. If the voltage remains in the long term stage
for more than seven days, the charge controller will automatically deliver a
boost charge for a short time, then automatically return to the normal float
stage to prevent sulfation.
Virtually Silent Operation. All PST-DLS chargers utilize an advanced switching
design. There is no low frequency transformer hum. Every unit is equipped with
a cooling fan that is virtually silent.
The PST-DLS 24V battery chargers
all feature thermal control circuitry that engages the fan only when internal
temperatures require it (typically 75% of full load). They have small compact
sizes compared to the transformer based power chargers. The switch mode
technology utilized in DLS power chargers has 86% efficiency. This superior
design results in cooler operating temperatures and compact size.
These 24 Volt chargers were
originally designed to power automobile audio systems in demonstration rooms
and trade shows. They have very low ripple and no audio noise. Other output
voltages can be made upon request.
| Summary table high power 24
volt (27 volt) lead acid battery chargers |
| Model number |
Continuous Amps |
Watts |
Weight |
Charge algorithm |
Dimensions |
Mounting Drawing |
AC Service Required |
Price |
PST-DLS-27-15
taper charger |
15A charge current |
400W |
4.5 lbs |
1 stage |
9.7 x 6.7 x 3.4 inches including bracket |
|
108-132VAC
7.3 Amps
580VA |
$219
 |
PST-DLS-27-15/IQ4
3-stage charger |
15A |
400W |
4.5 lbs |
3 stages |
9.7 x 6.7 x 3.4 inches including bracket |
|
108-132VAC
7.3 Amps
580VA |
$239
|
PST-DLS-27-25
taper charger |
25A charge current |
675W |
5 lbs |
1 stage |
9.7 x 6.7 x 3.4 inches including bracket |
|
108-132VAC
12.2 Amps
864VA |
$276
|
PST-DLS-27-25/IQ4
3-stage charger |
25A charge current |
675W |
5 lbs |
3 stages |
9.7 x 6.7 x 3.4 inches including bracket |
|
108-132VAC
12.2 Amps
864VA |
$295
|
PST-DLS-27-40
taper charger |
40A charge current |
1100W |
7.8 lbs |
1 stage |
9.7 x 6.7 x 3.4 inches including bracket |
|
108-132VAC
19.5 Amps
1296VA |
$339
|
| PST-DLS-27-40/IQ4 |
40A charge current |
1100W |
7.8 lbs |
3 stages |
9.7 x 6.7 x 3.4 inches including bracket |
|
108-132VAC
19.5 Amps
1296VA |
$359
|
PST-DLS-27-40-220
taper charger 240VAC input |
40A charge current |
1100W |
7.8 lbs |
1 stage |
9.7 x 6.7 x 3.4 inches including bracket |
|
108-132VAC
19.5 Amps
1296VA |
$490
|
| IQ4 |
IQ4 controller, turns the taper charger series
into multi-stage chargers by inserting its control cable into the control
socket of the DLS |
$28.00
|
* These are designed to exceed UL requirements.
A
taper charger is a CC-CV charger, in other words a constant current charger up
to the float voltage, at which the current tapers off until the battery is
full. The 3-stage charger keeps the current constant longer by raising the
voltage until the battery is full, then cuts back to the float voltage. This
allows the battery to be charged faster.
Specifications:
| Specifications for DLS
charger with optional APS-IQ4 charging controller |
| Parameter |
Value |
Notes |
|
| Battery |
24 Volt sealed lead acid, flooded lead acid, VRLA, gel, or
AGM |
|
|
| Output voltage |
29.5V Bulk charge phase
28.3V Absorption charge
27.1V
Float charge phase |
This 24V charger can be left on indefinitely without
overcharging the battery. The float charge phase keeps the battery maintained
to prevent sulfation. |
|
| Output voltage tolerance |
±0.7% |
no load |
|
| Maximum ripple and noise |
100 mV RMS |
|
|
| Input voltage rage |
108-132 VAC (220V models 216-264VAC) |
|
|
| Input frequency |
47-63Hz |
|
|
| Typical efficiency |
>80% |
|
|
| Short circuit protection |
Yes |
|
|
| Overload protection |
Yes |
|
|
| Line regulation |
<1% |
|
|
| Load regulation |
<1% |
at output terminals |
|
| Recommended output wire gauge |
4 AWG |
|
|
| Input cable |
30 inches long |
|
|
| Output terminals |
4 AWG screw terminals |
|
|
| Fan control |
Proportional-- |
Fan only comes on when needed |
|
| Fan type |
Special ultra low audio noise fan |
|
|
| Over temperature protection |
80°C |
Turns off |
|
| Storage temperature |
-20°C to 80°C |
|
|
| Ambient temperature |
0°C to 40°C |
|
|
| Warranty |
2 Years |
|
|
Usage Note: Typical AC outlets are 1540VA,
14 amp service. To run the higher power units you will need higher power
service than is typically available in a wall plug. Please consult competent
technical authorities to determine the total load on the circuit you intend to
supply the power with, including other things plugged into the same
circuit.
Maintenance mode: After the 24VDC battery is full, the
charger goes into a maintenance mode. In maintenance mode the battery is safely
floated at 27.1 volts to maintain the battery and replace charge lost due to
leakage or self discharge. In addition, if the battery has not received a bulk
charge during a seven-day period, the charge controller will switch the APS
Power Supply into a pre-programmed equalization stage to top off the batteries,
dissolving any sulfate layer on the battery’s plates and avoiding
stratification of flooded batteries.
|
More lead
acid battery chargers 6V, 12V, 18V, 36V, 42V, 48V
