|
For more DC/DC
battery chargers
A DC input lead acid battery charger with 72 volt
input to charge 12 volt batteries. Either 2 or 3 stage charge, which is user
selected. Note, all the products below are conformal coated, and they are
suitable for use in marine environments.
| DC-DC Converters |
Heavy Duty
20 Amp
DC to DC Battery
Charger
 |
Marine Grade IP66 water tight
20 Amp
DC
to DC Battery Charger
|
Ruggedized with wide temperature range
20
Amp
DC to DC Battery Charger
|
Part Number
and Price |
PBCD315-72-12
$851
Allow up to 45 days for
manufacturing
 |
PBCD315Y-72-12
$1696
Allow up to 45 days for manufacturing
|
PBCD315X-72-12
$946
Allow up to 45 days for manufacturing
|
| Country of Origin |
Canada,
NAFTA eligible |
| Input Voltage |
65 to
90 VDC |
| Nominal Input Voltage |
72V |
| Max Input current at No Load |
mA |
| Float Voltage |
13.6VDC |
| Absorption Voltage |
14.4VDC |
| Switch to Float Current |
3A |
| Max Output Current(s) |
20
Amps |
| Voltage Adjustment |
±1 Volt |
| Max Output Power |
300W |
| Output current limit? |
Yes |
| Operating Temperature Range |
-25°C to
+40°C
(-13°F to +104°F) |
-25°C to
+40°C
(-13°F to +104°F) |
-40°C to
+55°C
(-40°F to +104°F) |
| Derating |
2.5% per °C up
to +50°C |
2.5% per °C up
to +50°C |
2.5% per °C up
to +85°C |
| Efficiency at maximum output |
>75
% |
| Line Regulation |
<±0.05V |
| Load Regulation |
<±0.05V |
| Switching frequency |
kHz |
| Output ripple noise |
<25
mV rms |
| Noise inserted on the input
terminals |
<25
mV rms |
| Isolation |
Fully
isolated to 1500VDC input-output, 1500VDC output-ground, 500VDC
output-case |
| Low input voltage alarm |
65V |
| Remote power on/off |
No |
| Input Fuse |
MDA-10 |
| Connections |
Screw
terminals output
Wire leads input. |
| Protection |
Input Undervoltage, Output Over Voltage , Current
Limiting, Short Circuit (automatic recovery), Reverse Polarity , Over Load,
Over Temperature Shtudown |
| Dimensions |
244 x 208 x 64mm (9.6x 8.2 x 3.5 inches) |
| Weight |
3.4 Kg (7.5 pounds) |
| Audible Noise |
None |
| Cooling |
Convection, no fan |
| Warranty |
5 years |
1 Year |
1 Year |
| Duty Cycle |
24
hours a day, 100% continuous |
The following table describes the
display of LED lights at different stages of charging:
Q: Can I leave
the battery continuously on the charger?
A: Yes, the charger will go
into "maintenance mode" and keep the battery topped off.
Q: Can I draw
power from the battery when the charger is connected?
A: Probably. . .
There is some pulsing going on with the charger which your equipment might not
be happy with (it is a pulse-charger, 1 second pulses with 20mS gaps), but if
you combine this with the battery the battery will fill in the gaps, so the
ripple is no more than it would see in an automotive application.
Q: If I
discharge the battery while the charger is attached will the charger maintain a
full charge?
A: Yes, When the charger detects that the battery voltage
has dropped it knows that the battery needs to be charged and goes into "bulk
charge" mode again automatically.
Q: Can the charger be left connected to
the battery when the charger is not turned on, or when the input voltage of the
charger has been cut off?
A: Yes.
Applications:
Charging lighting system batteries, and scooters in a train, locomotive,
boat, or electric vehicle.
Fully automatic without intervention.
Output short circuit and battery polarity protections. Input low voltage and
high voltage connections.
Charging 12 volt "jump start" batteries from a 12 volt locomotive or
float.
Charging 12 volt electric bicycle from a train.
Three stage charge--constant current, constant voltage, and float. It is
suitable for any size 12 volt lead acid battery.
Installation
Notes:
- A qualified automotive electrical technician should be used
to wire the charger into the vehicle.
- The PBCD315-72-12 converts 72 volt power into 12 volt power
with 75% efficiency, so for a 20 amp output the input needs over 4.4 amps. Make
sure that the wires connecting the are adequate for the current and the length
of the run. If the voltage drop in the wires are too much the "Low Battery
Voltage" alarm will come on. Wires that are too small may also overheat and
melt the insulation, causing a dangerous situation. 12 gauge is usually
adequate for runs up to 20 feet of wire (adding together the positive and
negative wire lengths).
- It is OK to leave the unit on the charger when the power to
the charger goes on and off.
- Mount in an area that will get adequate ventilation and will
be free from rain, spray, or excessive dust.
Summary:
Model PBCD315-72-12 DC input
battery chargers. DC Input Voltage 65-90V Charging Voltage 12V Nominal, 14.4
volt maximum. Maximum Charging Current 20A Charging method: multistage charge.
Protections include (1) Input and output polarity protect (2) Output short
circuit protect (3) Over temperature protect |
