20A PWM Charge Controller


$25.49 $33.99

Product Description

20A PWM controller NPA-MAX20EU is a low cost battery regulator, with 12/24V auto switch for off-grid applications. PWM technology is integrated into a compact design, that allows for easy installation in RVs, trickle charge kits, and portable solar. Designed with vivid LCD graphics that keep you informed of the solar systems' and battery information in real time. 

Key Features

  • Positive ground charge controller (compatible with negative ground system, see instruction manual)
  • Automatic 12/24V DC detection, 30A charging capacity
  • Automatic temperature compensation.
  • Vivid LCD graphic symbols with simple button operation
  • Smart 4 stage PWM charging (Bulk, Float, Boost, and Equalization)
  • Adaptable to different types of batteries, AGM, Liquid and GEL battery
  • Multiple load control modes: Always on, Dusk to Dawn, Evening, Manual
  • For indoor use only / dry conditions
  • Full automatic electronic protect function
  • Dimension: 189 x 96 x 53 mm/7.44 x 3.78 x 2.09 inch


24 month limited materials and workmanship warranty

Shipping Policy

Newpowa offers free shipping for all domestics orders (48 states). Your order will be shipped within 1-2 business days from the date payment is cleared. 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. Adult signature is required for deliveries.  



Max Charging Current 20A
System Voltage 12/24V (Auto)
Self consumption


Fast Voltage <14.5/29.0V@25℃
Boost Voltage 14.5/29.0V @25℃
Equalization Voltage 14.8/29.6V @25℃(Liquid, AGM)
Float Voltage

13.7/27.4V @25℃

Low Volt. Disconnect

10.8~11.8V/21.6~23.6V, SOC1~5(default: 11.2/22.4V)

Reconnect Voltage

11.6~12.8V/23.2~25.6V(default: 12.0/24.0V)

Overcharge Protect


Max volt on Bat. terminal 35V
Max volt on PV terminal 55V
Battery Type Liquid, Gel,AGM(default: Gel)
USB Output


Ambient Temperature


Storage Temperature 


Ambient Humidity


Dimensions (LxWxH) mm 


Net weight (approx.)



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