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For 24V to
12V, 12V to 24V, 24V to 24V chargers click here
| Model Number |
PST-BC1212-15
DCDC Charger |
| Input Voltage Range |
10 VDC to 15 VDC |
| Battery Voltage (nominal) |
12 Volts |
| Continuous Charging Current |
7.5 Amps |
| Charge Current Options |
The peak charge current can be adjusted to 1-7.5 amps by internal trim pots. |
| Charging Algorithm |
4 stage, 3 level adaptive microprocessor controlled
State diagram showing the charge algorithm |
| 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. |
| Connection |
Input: screw terminals
Output: binding posts |
| Cooling |
Controlled DC Fan |
| Operating Temperature |
0-55°C |
| Remote Turn-on |
When 12 volts is applied to the center screw of the input terminal the unit will
turn on if the rocker switch is turned off. |
| Weight |
1.5 kg, 3.3 pounds |
| Quantity |
1-10 |
11-100 |
101-500 |
501+ |
| PST-BC1212-15 Prices |
$154.00
 |
$139.57 |
$91.85 |
$74.89 |
XLR Charger Cable |
$12.50
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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% |
|
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|
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.
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
Q: Can I charge my 12 volt golf caddy from my car?
Yes, the charge time should be less than 2 hours for a
fully depleted golf trolley.
Advantages:
 Inexpensive DC input charger.
Protects even small 12 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 100 AH 12
volt battery would be able to charge a 10 AH 12 volt battery 8 or 9 times before the host battery needed
recharge.
Applications:
Charging wheel chairs, bicycles, and scooters in a car, van 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.
Output short circuit and battery polarity protections. Input low voltage
and high voltage connections.
Charging 12 volt sealed lead acid batteries from a vehicle.
Charging 12 volt "jump start" batteries from a 12 volt tow truck or
service vehicle.
Charging 12 volt electric bicycle from a vehicle.
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 12 volt lead acid battery.
Installation Notes:
- A qualified automotive electrical technician should be used to wire the charger into the vehicle.
- The BC-1212-15 converts 12 volt power into 13.8 volt power for charging, so for a 7.5 amp output the input
needs over 9 amps. Make sure that the wires connecting the BC-1212-15 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). If 9 amps is not available we (or you) can also lower the output
current by internal adjustments to match your needs.
- PowerStream does have 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!)
- 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-1212-15 in an area that will get adequate ventilation and will be free from rain, spray, or
excessive dust.
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