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| Model Number |
PST-PB1108
DCDC Charger |
| Input Voltage Range |
8 VDC to 16 VDC |
| Battery Voltage (nominal) |
12 Volts |
| Continuous Charging Current |
8 Amps |
| Charging Algorithm |
Constant current-Constant voltage (CC-CV) |
| Battery Size |
8 AH to 100+ AH |
| Protections |
Over temperature protection
Output short circuit protection
Low input voltage
protection
Battery polarity protection on the output
NOT polarity protected on input
Ignition noise and load dump
protection |
| Isolation |
Full galvanic isolation means that both the plus and minus outputs are isolated
from the input. This allows two of the PST-PB1108 to be used to charge in parallel (to decrease charge time) or series (to
charge two 12 volt batteries in a 24 volt configuration) |
| Output stability |
Ripple & Noise <25mV RMS
Output regulation with varying input 8-16V --
<20mV |
| Efficiency |
>87% |
| LED indicator |
Green-Power on
Yellow--Input voltage too low
Red--Output overload
(there
is no "battery charged" indicator) |
| Dimensions |
100 x 115 x 70 mm
4 x 4.5 x 2.75 inches
|
| Connection |
Input: 28 inch wires with ring terminals
Output: screw terminal block |
| Cooling |
Thermally controlled DC Fan |
| Operating Temperature |
-20-50°C |
| Remote Turn-on |
When +12V is applied to the brown wire of the input harness the unit will turn on
if the rocker switch is turned off. |
| Weight |
750g, 1.7 pounds |
| Quantity |
1-10 |
11-100 |
101-500 |
501+ |
Prices
PST-PB1108 |
$85.00
 |
$76.50 |
$68.85 |
$61.90 |
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: Yes, the output is fully
isolated from the input, so there is no danger in confusing grounds.
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 "constant current" 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 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.
Applications:
Charging wheel chairs, bicycles, golf trollys and scooters in a car, van
or bus.
Fully automatic without intervention.
Output short circuit and battery polarity protections.
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.
Two stage charge--constant
current, constant voltage. T
Installation Notes:
- A qualified automotive electrical technician should be used to wire the charger into the vehicle.
- The PST-PB1108 converts 12 volt power into 13.8 volt power for charging, so for an 8 amp output the input needs
over 9 amps. Make sure that the wires connecting the PST-PB1108 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 the PST-PB1108 in an area that will get adequate ventilation and will be free from rain, spray, or
excessive dust.
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