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For 24V to 12V,
12V to 24V, 12V to 12V chargers click here .
| Model Number |
PST-BC2424-10
DCDC
Charger |
| Input Voltage Range |
20 VDC to 30 VDC |
| Battery Voltage (nominal) |
24 Volts |
| Continuous Charging Current |
5 Amps |
| Charge Current Options |
The bulk charge current can be
adjusted to 1-10 amps by internal trim pots. "High" and "Low" limits can be
changed independently |
| Charging Algorithm |
4 stage, 3 level adaptive
microprocessor controlled |
| Battery Size |
0.5 AH to 100+ AH |
| Protections |
Low input voltage
protection
High input voltage protection
Over temperature
protection
Output short circuit protection
Battery polarity
protection |
| Dimensions |
200 x 164 x 67 mm
7.9 x 6.7 x
2.8 inches
Click Here for a Dimensioned Drawing.
|
| Isolation |
Non-isolated, the negatives are
common on the input and output |
| Connection |
Input: screw
terminals
Output: binding posts |
| Cooling |
Controlled DC Fan |
| Operating Temperature |
0-55°C |
| Weight |
1.5 kg, 3.3 pounds |
The following table describes the display of LED lights at
different stages of charging:
| Status |
Completion |
Red LED 1 |
Red LED 2 |
Yellow LED |
Green LED |
| Standby |
|
LEDs cycle while waiting |
| Trickle before bulk charge |
0-10% |
The two red LEDs cycle |
Off |
Off |
| Bulk charge |
10-90% |
Off |
Red 2 and yellow cycle |
Off |
| Fill charge (also known as "over charge") |
90-99% |
|
|
Yellow and green cycle |
| Float charge |
100% |
|
|
|
Green flash |
| Low battery voltage alarm |
|
Flash |
Off |
Off |
Off |
| High battery voltage alarm |
|
Off |
Flash |
Off |
Off |
| Low input voltage alarm |
|
Flash |
Off |
On |
Off |
| High input voltage alarm |
|
Off |
Flash |
On |
Off |
| Over temperature alarm |
|
Off |
Off |
Flash |
Off |
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, but there is an 80mA draw from the
battery..
Q: Can the charger be adjusted to lower currents?
A: Yes. There are two trimpots that
we can adjust here or click here to view the instructions
Advantages:
Inexpensive DC input charger.
Protects even small 24 volt batteries from gassing or damage.
Charge efficiency is 95% for the a SLA, VRLA, or Gel Cell battery and 85%
for the charger, making a combined efficiency of 81%. So a 24 volt 100 AH
battery would be able to charge a 24 volt 10 AH battery 8 or 9 times before the
host battery needed recharge.
Applications:
Charging wheel chairs, bicycles, and scooters in a humvee, firetruck or
bus.
Microprocessor controlled 4 stage adaptive charging algorithm suitable for
Gel, Absorbed Glass Mat, VRLA, or flooded lead acid batteries.
Fully automatic without intervention.
For Charging 24 volt sealed lead acid batteries or gel cells from a 24 volt
vehicle or other 24 volt source.
Four stage charge--constant current, constant voltage, fill, and float. This
charges your battery the fastest way possible without damaging the battery. It
is suitable for any size 24 volt lead acid battery.
Output short circuit and battery polarity protections. Input low voltage and
high voltage connections.
Charging 24 volt "jump start" batteries from a 24 volt tow truck or service
vehicle.
Charging 24 volt electric bicycle from a 24 volt vehicle.
Installation Notes:
- A qualified automotive electrical technician should be used
to wire the charger into the vehicle.
- PowerStream has the connector that fits into many wheelchairs
( we have the 3 pin XLR style in stock ). Consult
the manufacturer or a wheel chair technician to obtain the proper cable and
plug. (If you know about such things please educate us!)
- The BC-2424 converts 24 volt power into 24 volt power, so for
a 5 amp output the input needs over 6 amps. Make sure that the wires connecting
the BC-2424 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).
- Try to connect or disconnect the battery when the charger
power is "on." It is possible but extremely rare for the charger to go into a
fault mode if the battery is connected first, but cycling the power switch will
clear this "false fault."
- It is OK to leave the unit on the charger when the power to
the charger goes on and off.
- Mount the BC-2424 in an area that will get adequate
ventilation and will be free from rain, spray, or excessive dust.
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