20A 12V/24V PWM Solar Charge Controller


$22.50 $29.96

Product Description

Newpowa's 20A PWM solar charge controller NPC-PHL20A is a low-cost battery regulator, with a 12/24V auto switch for off-grid applications. PWM technology is integrated into a compact design, that allows for easy installation in RVs, portable solar, etc. Designed with vivid LCD graphics that keep you informed of the solar systems' and battery information in real-time.

Key Features

  • Can handle up to 340/680 watts of panel power at 12/24Volts
  • Positive ground charge controller (compatible with negative ground system, see instruction manual)
  • Automatic 12/24V(FLD/GEL/SLD) DC detection, 12V/24V(manual set for Li), 20A rated charge current
  • Automatic temperature compensation
  • Smart 3 stage PWM charging ( Equalization, Boost, and Float)
  • Adaptable to different types of batteries: Flooded, Sealed/AGM, GEL, and Lithium battery
  • Vivid LCD graphic symbols with simple button operation
  • Multiple output control mode selection: light control mode, light + time control mode, test&debug mode, manual mode, and always-on mode
  • Full range of electrical protections, like anti-connection in PV and Battery wiring, load short circuit, battery over-discharge, system over-voltage, etc.
  • Dimension: 4.8 x 2.76 x 1.36 in (122 x 70 x 34.5 mm)


24-month limited materials and workmanship warranty

Shipping Policy

Newpowa offers free shipping for all domestic orders (48 states). Your order will be shipped within 1-2 business days from the date payment is cleared plus transit time, ships from Southern California. Please note that we are unable to ship to PO Box addresses for any size of solar panels. Upon shipment, a tracking number will be provided. 



Rated Charge Current 20A
System Voltage 12/24V Auto (FLD/GEL/SLD), 12V/24V (manual set for Li)
No-load Loss

8mA (12V), 12ma (24V)

Equalize Charge Voltage 14.8V*n
Boost Charge Voltage 14.6V*n
Float Charge Voltage 13.8V*n
Boost Charge Recovery Volt


Over Discharge Recovery Voltage


Over Discharge Voltage


Max PV input voltage <55V
Max PV input power 340W/12V; 680W/24V
Battery Type FLD, SEL, GEL, LI
USB Output


Operation Temperature

-13°F to 149°F

Dimensions (LxWxH) 


Weight 0.44lbs


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