| 4 stage, 3 level, microcontroller based charger for sealed lead acid,
VRLA, flooded and gel batteries with 10 VDC to 15 VDC input. Charge 12 volt lead acid
batteries. Charge a small 12V battery from a large one, or from an automobile, truck, tractor
or back-hoe. |
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|
For 24V to
12V, 12V to 24V, 24V to 24V chargers click here
| Model Number |
PST-BC1212-15
DCDC Charger |
| Quantity |
1-9 |
10-99 |
100-499 |
500+ |
| PST-BC1212-15
|
$185
|
$167.40 |
$110.20 |
$89.90 |
XLR Charger Cable
|
$13.70
|
|
|
|
| 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+ |
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.
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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