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1.What is a solar charge controller?
1)A charge controller, also known as regulator, is
an integral part of most solar systems over 15 watts.
2)The 25 Amp Charge Controller will prevent solar
panels of 250 watts or less from overcharging your battery.
3)Solar panel connects to charge controller then
to your 12V battery unit or 12VDC appliance.
4)For AC appliances or different voltages, need to
buy separate inverter or adaptors!
2. What is MPPT?
Intelligent Chip - Squeeze 30% more juice out of PV!!
MPPT stands for Maximum
Power Point Tracking.
The electrical power in a stand alone PV system is expensive; generated
power should be delivered to battery as much as
possible. In colder temperature, panel produces more
power. The conventional charge controller can not deliver this extra
power to the battery. If using a MPPT
charge controller in a system, the PV module can generate more power by
neglecting
battery voltage, and it can deliver the maximum power.
Typically, in the MPPT charge controller, the generated voltage step
down, and at the same time current step up at the
same ratio. The MPPT regulators are useful in the winter
months, in the
cloudy or hazy days or when the battery is deeply
discharged.
3.Features:
1) For
solar panels generating up to 250W/25A of current (12V)
Suited for solar panels from 15
watts up to a maximum of 250 watts
2) Intelligent MPPT charge control
ensures batteries reach max capacity!
Idled PV power,
temperature of the battery will be
monitored by the microprocessor!
Squeeze every
juicy out of PV,
converted to different voltages or amps to
charge up the battery!
With this device, you can
charge a 12V battery from a higher voltage PV panel.
3)LED Digital display - Indicate battery's
voltage and charging current.
When Red
Float LED
light is on
- The battery reached it's factory pre-set float voltage 14.1 V!
Charging current of the battery will drop slightly to maintain this
float voltage!
When a yellow LED light is on - DC load
is turned on and is drawing power from the battery.
4)Battery Temperature sensor
Feedback to the microchip to properly maintain power charging.
When the battery is warm,
the float voltage will drop and current
increase!
5) Integrated screw terminal connections for quick and easy
installation
6) Night time battery discharge back to PV is prevented by diode.
7)Low Voltage Disconnect to prevent Battery
overly discharged!
When
DC load is drawing power from the battery, there is an automatic sensor to
disconnect the battery
such
loads
when
the battery voltage reached 12.0V or
Current to 15 amps! It will allow battery to charge
up from the PV power and
when battery reaches back to 12.V
then it will get reconnect to the load.
8)Reduces system maintenance
This will assure trouble-free solar charging and longer battery life.
Great for small and medium size PV
Systems!
| Nominal Voltage |
12 V |
| Charging Current, Continuous (Ip)
|
25 Amp |
| Surge Current |
35 Amps 10 min. |
| Max. Load |
250 watts / 25 amps |
| PV Input Voltage |
Auto Ranging |
| PV Input |
12 or 24 volts nominal |
| Array Voltage, Max (Voc) |
50 V |
| Operating Voltage at Battery |
Min 10V |
| Battery Size |
100 AH Minimum |
| Wire Size |
#12 max AWG |
| Float Voltage Range |
12.5-15.5 V |
| Float Voltage |
14.1 V |
| Float Regulation Accuracy |
?.05V Nominal |
| Operating Current |
0.15 Amps nominal |
| Lighting Protection |
MOV 1000watt |
| LVD Disconnect |
12.0 Volts |
| Digital Meter |
1/2" LCD display |
| DC Volts Range |
0~99.9 volts
?5% |
| DC Amps Range |
0~99.9
Amps
?75% |
| Temp. comp. |
-18mV/?
C nominal |
| Efficiency |
>95%@20 amps |
| Storage temp. |
-22慚
~158慚/-30慢~ 70慢
|
| Mounting |
#6 Screw |
| Reverse Current |
0.1 amps nominal |
| Aux Battery charger |
13.8 volts, 0.1 amps max. |
| Case Finish |
Black powder coat |
| LVD Current |
15 amps max |
| LVD reconnect |
12.6 Volts |
| Dimensions |
7.8" x 5.1" x 2.5" |
| Weight |
2 lbs |
| Operating Temperature Range |
-4慚
~144慚/-20慢~ 60慢
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| Warranty |
5 years
limited warranty |
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