-40%

20A 12V Charge Controller for Solar Power Panel System

$ 20.59

Availability: 37 in stock
  • Condition: New
  • Item must be returned within: 30 Days
  • Features: LED Indicator
  • Refund will be given as: Money Back
  • System Voltage: 12
  • Protection Properties: Low Voltage Protection
  • Charging Mode: MPPT (Maximum Power Point Tracking)
  • Restocking Fee: No
  • Color: Black
  • Brand: GreenergyStar
  • Current Type: AC
  • Return shipping will be paid by: Buyer
  • All returns accepted: Returns Accepted

    Description

    12V 20A Charge Controller
    For Solar Power Systems
    Brand new~
    Environment friendly~
    Introduction:
    The charge controller regulates the flow of electricity from the solar modules / wind generator to the battery bank. When the battery bank is low, the charge controller feeds all of the electricity from the array / generator to the batteries. When the batteries reach a state of full charge, the charge controller stops or redirects the supply of electricity to prevent overcharging. Modern charge controllers have the ability to hold the battery bank in a "
    float
    " state of charge if the bank is not being used. At night the charge controller prevents a reverse flow of current from the batteries to the modules.
    There are three basic types of charge controllers - series, shunt and
    pulse-width-modulated
    . A series controller, the most basic type, acts as a switch to disconnect and re-connect the solar modules to the battery bank. A shunt type controller redirects the current from the solar modules - either by simply short circuiting the array or by directing the current to some other load.
    Pulse-width-modulated
    charge controllers, the
    most up-to-date
    type, maintain the battery bank in a float state of charge. "
    Float
    " is the voltage level just below gassing voltage. Keeping the batteries in this state of charge delivers their best possible life without using excessive electrolytic.
    Many people have asked about power point tracking and whether it has any real advantages.
    Maximum Power Point Tracking (MPPT)
    converts the difference between a solar modules rated voltage, (usually 17 volts) and a battery banks charging voltage (up to 14.7 volts) into usable charging current. Often claims are made for up to a 30% increase in charging current. This gain, however, is possible under a very limited set of conditions. The "extra" module voltage is there for a reason: to allow for real world use of the solar module, i.e. the voltage drop caused by the array wiring and other components, including the charge controller, between the solar array and batteries. Also, high ambient temperatures cause the solar module to drop in voltage further reducing this "extra" voltage
    Having said that, there are times when the voltage difference will be high enough to provide extra current to a battery bank utilizing this type of charge controller. Cold weather comes to mind, as well as low battery bank voltage. Under these conditions, it can be possible to get as much as
    10% to 30%
    more current from your solar modules.
    Features:
    Pulse-width-modulated
    to keep battery bank at a "
    float
    " state of charge
    Maximize Efficiency with
    Max Power Point Tracking
    (around
    30%
    increase in charge)
    Built in diode to prevent reverse flow of current back to the modules
    Temperature Compensation
    Maximum Output: 20A
    Voltage: 12V
    Continue Power: 240W
    Over-charge Protection
    Over discharge protection
    Can use AC Power as source
    Specification:
    Parameters
    24V- 20A Solar Controller (CQ1220)
    Rated Voltage
    (
    V
    DC
    )
    12
    Rated Current
    (
    A
    )
    20
    Max. input Voltage
    (
    V
    )
    25
    Over-
    Charge
    (
    V
    )
    Protection
    14.4
    ±
    0.1
    Resume
    13.3
    ±
    0.1
    Over-
    Discharge
    (
    V
    )
    Cut-off
    11.1
    ±
    0.1
    Resume
    13.2
    ±
    0.1
    Over-
    Loaded
    Cut-off
    16.5
    Resume
    15.0
    Voltage
    Drop
    (
    V
    )
    Between input and batteries
    0.4
    Between batteries and load
    0.3
    No Load Current Draw
    (
    mA
    )
    <10
    Ambient Temperature
    -10
    C~
    55
    C
    Height
    (
    m
    )
    <
    5500
    Size
    164X 100 X 41 mm
    Weight
    0.36kg
    Temp Compensated factor
    -4mV/C
    to -6mV/C
    Electric Discharge self-setting
    The controller will adjust over-discharge voltage and protected voltage according to batteries dishcarge rates
    Max Power Point Tracking
    Yes
    Includes:
    - Charge Controller
    - Temperature detector
    - Extra 20A Fuse
    - 7 connectors
    - Instruction Maunual
    Types of Connection:
    1 Set of Panels
    Panel Set 1 connects to
    Panel Input 1 & 3
    with positive terminal to hole 1 and negative to hole 3
    24V Battery (optional)
    Grid connection to
    Load 1 & 2
    2 Sets of Panels
    Panel Set 1 connects to
    Panel Input 1 & 3
    with positive terminal to hole 1 and negative to hole 3
    Panel Set 1 connects to
    Panel Input 1 & 2
    with positive terminal to hole 1 and negative to hole 2
    24V Battery (optional)
    Grid connection to
    Load 1 & 2
    NO OPERATING COST
    GENERATES ELECTRICITY FROM THE ABUNDANT RESOURCE - SUNLIGHT
    The Charge Controller is compatible with the following Panels:
    1Pcs 12W Solar Panel
    2Pcs
    12W Solar Panel =
    24W
    4Pcs
    12W Solar Panel =
    48W
    6Pcs
    12W Solar Panel =
    72W
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