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  • LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stage Double USB Output Charger Controller
  • LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stage Double USB Output Charger Controller
  • LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stage Double USB Output Charger Controller
  • LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stage Double USB Output Charger Controller
  • LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stage Double USB Output Charger Controller
LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stage Double USB Output Charger Controller

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LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stage Double USB Output Charger Controller

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  • Product Description
  • Parameter
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Maximum Current 20A
is_customized Yes
Application Solar System Controller,Charger Controller
Brand Name HF
Model Number SMPPT20D
Rated Voltage 12V24V auto work
Color black

More Parameter >

Maximum Current 20A
is_customized Yes
Application Solar System Controller,Charger Controller
Brand Name HF
Model Number SMPPT20D
Rated Voltage 12V24V auto work
Color black
Size 196mm*111mm*54 mm
Max PV voltage 100V
HVD 16V/32V
IP Code IP30
Max No-Load Loss 13mA
Max Charge Loop Voltage Drop 0.17V
Max Discharge Loop Voltage Drop 0.10V
Charging Mode PWM Muti-stage(bulk,absorption,float)
Battery Type GEL,SLD,FLD and Usr(default)
Unit Type piece
Package Size 25cm x 15cm x 25cm (9.84in x 5.91in x 9.84in)
Package Weight 0.8kg (1.76lb.)

LCD Display 20A 12V/24V MPPT Solar Panel Battery Regulator Charge Controller 4-stagel Charger Controller Regulator

(1) Maximum Power Point Tracking technology

The controller uses Buck conversion circuit and MCU technology to track the maximum power point to implement the maximum output power of solar panels in different illumination intensity and temperature. The MPPT algorithm increases efficiency of your PV system and decreases the quantity of solar panels.

(2) Multi-stage Charge Control

The starting charging voltage of battery is different, the controller will use the different charging strategies to finalize the charging process. When starting charging voltage of battery is lower than 12.4V (for 12V battery), battery will go through three stages as Bulk, Absorption and Float charging. When starting charging voltage of battery is higher than 12.4V (for 12V battery), battery will go through two stages as Bulk and Float charging.

Bulk Charge:

The controller charges the battery by its maximum output current. It is at maximum power point tracking state at this phrase.

Absorption Charge:

The controller begins to limit the charging current to make the battery voltage fixed at a settled absorption voltage (this voltage has temperature compensation) for 2 hours. It increases the charging saturation level of battery and prevents battery from leaking gas, and this can increase the lifetime of battery.

Float Charge:

The battery is at saturation state, and the controller charges the battery at a trickle current to make the battery voltage fixed at the settled float charging voltage (this voltage has temperature compensation).

(3) Charge Voltage Temperature-compensated

The controller will compensate the Float charging voltage and Absorption charging voltage by -4mV/Cell/°C based on the current battery temperature.

For 12V battery, the compensated voltage U=(t-25)*6*(-0.004)V

For 24V battery, the compensated voltage U=(t-25)*12*(-0.004)V

(4) Discharge Control 

The controller monitors the battery voltage all the time. The load will be switched off when the voltage less than the Low Voltage Disconnect (LVD) point, and it won’t be switched on until the voltage more than the Low Voltage Reconnect (LVR) point.

(5) Protection against Reverse Connected Battery

Connecting the battery to the controller by reversed polarity (under the circumstances of solar panels disconnected) will not damage the controller. The controller will work normally after connecting with correct polarity.

(6) Protection against Reverse Connected Solar Modules

Connecting the solar modules with the controller by reserved connection will not damage the controller. The controller will work normally after connecting with correct polarity.

(7) Reverse Current Protection

The controller prevents reverse current from flowing into the solar modules at night. An additional reverse current diode is not required.

(8) Overtemperature Protection

If the temperature inside the controller becomes too high, then the controller will stop charging to the battery, and it will restart charging the battery again when the temperature decreases to a certain value.

(9) PV Overvoltage Protection

If the input voltage of solar panels exceeds the maximum voltage permitted by the controller, it will enter into protection state automatically and stop charging. When the input voltage recovers to the normal range, the controller will start charging again.

(10) Current-limited for Excessive Charging Current

If the permissible charge current is exceed, the controller will deviate from the maximum power point to limit the output current to prevent the controller being damaged.

(11) Load Output Overload Protection  

If the permissible load current is exceed, then the load output is switched off. The overload current vs. duration shows as follows:

Rate of Current

Duration (s)

1.1Irate ≤I< 1.2Irate

120

1.2Irate ≤I< 1.5Irate

60

1.5Irate ≤I< 1.8Irate

10

I≥ 1.8Irate

0.2

Note: Irate=10A, nominal load current

The controller restarts the load every 3 minutes automatically, but the user can also restart the load by the Restart key. 

SMPPT20DSMPPT20D-1SMPPT20D-2SMPPT20D-3

Technical Data

Model

SMPPT20D

Input

Maximum PV voltage

75V

Maximum input power

260W (12V), 520W (24V)

Output

System voltage

12V (24V)

Maximum battery voltage

16V (32V)

Maximum charging current

20A

Maximum load current

20A

Own consumption

≤12mA

Charging control mode

4-stage (MPPT, Absorption, Equalization, Float)

Float charge

13.8V (27.6V)

Absorption charge

14.4V (28.8V), duration 2 hours

Equalization charge

14.6V (29.2V), duration 2 hours

Load disconnection (LVD)

10.8V (21.6V)

Load reconnection (LVR)

12.6V (25.2V)

Temperature compensation

-4mV/ cell/ °C

Battery type

Lead acid (Gel, Sealed, Flooded)

Other

Maximum efficiency

97%

Human interface

LCD, buttons

Cooling style

Passive cooling

Maximum wire size

16 mm2

Ambient temperature

-10 to +50 °C

Storage temperature

-20 to +60 °C

Humidity

0 to 90%, no condensation

Dimensions

 196mm*111mm*54 mm

Weight

 0.535Kg

Grounding

Positive grounding

Degree of protection

IP32

 

Note: Technical data at 25 °C / 77 °F

 

SMPPT20D

Manufacturer provides  2 year warranty from invoice date for solar charge controllers.
Please read the following instructions carefully. Free guarantee service will not be provided to the said equipment if

1.It has been installed and operated otherwise than in accordance with the instructions

2.Any unauthorized repair or modification has been carried out on the unit.

3.It has been damaged through natural calamities.

4.It has been damaged through transportation or storage.

5.Batch numbers, serial numbers or identification-marks are manipulated or are unidentifiable.

6.Load connected has been damaged due to incorrect, reversed connection as controller is equipped with solar panel and battery reverse connection protection, but no REVERSE LOAD CONNECTION PROTECTION.

7.It has been used to control power generated from any other type of device such as a Gasoline Generator rather than a solar panel to charge a lead acid battery.   

Service Process

Service Guarantee

  • Free purchase service fee

    Free purchase service fee: ECVV do not charge the Buyer a procurement Service Fee for purchasing this product.

  • ECVV Supply

    Ensure product quality and payment security.Ensure the date of delivery, ensure logistics to end destinations, provide custom clearance service.

  • Product Quality Commitment

    ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.

  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a $ 100 deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.