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Rectangular solar charge controller with large LCD screen and four buttons, grey plastic housing

NShi

NShi RBL-30A solar charge controller 30-100A 12V/24V

SKU CH-EV2P-XFX22 MPN RBL-30A

A 12V/24V MPPT charge controller with LCD display and 30-100A current handling for solar systems

  • TypeSolar Panel
  • Output Voltage24 V
  • Output Current30-100 A
  • Voltage3.6V
  • Operating Voltage24 V
  • Solar Cell Output Current30-100 A
  • MPPT tracking raises charge efficiency by 10-30%
  • Auto 12V/24V detection simplifies battery setup
  • Industrial 16AD chip shows real-time current
  • Four-stage PWM charge protects battery health
  • Built-in short-circuit, reverse and overload protection

Purpose and fit

The NShi RBL-30A is a solar charge controller rated for 30-100 A at 12 V or 24 V systems. It suits off-grid installations that need automatic battery-voltage detection and a built-in LCD for parameter adjustment. Buyers who require true MPPT topology with a large transformer coil should look elsewhere.

Sustained-load behaviour

The unit uses a PWM four-stage charge algorithm with dual MOSFET reverse-current protection to limit heat during continuous operation. Industrial-grade 16 AD sampling reports charging and discharging current in real time. The manufacturer notes a 10 % to 30 % efficiency gain over basic controllers, though the design is not true MPPT.

Installation and pitfalls

Wiring sequence is critical: connect the battery first, then the photovoltaic array, then the load; reverse the order when removing. An incorrect sequence can damage the controller. The LCD menu allows manual load on/off and timer modes from 1 to 23 hours or 24-hour output.

Highlights

  • MPPT tracking raises charge efficiency by 10-30%
  • Auto 12V/24V detection simplifies battery setup
  • Industrial 16AD chip shows real-time current
  • Four-stage PWM charge protects battery health
  • Built-in short-circuit, reverse and overload protection

Specifications

BrandPowertraveller
TypeSolar Panel
Output Voltage24 V
Output Current30-100 A
Voltage3.6V
Operating Voltage24 V
Solar Cell Output Current30-100 A

Questions about this item

How much heat does the RBL-30A produce when running at 100 A continuously?

Dual MOSFET reverse-current protection keeps heat production low even at the 100 A upper limit.

Which battery must I already own for the controller to auto-detect 12 V or 24 V?

A 12 V or 24 V battery with sufficient voltage must be connected first so the controller recognises the correct type.

Will the load terminals on the RBL-30A power my older 12 V DC appliances directly?

Yes, the load output supports 12 V or 24 V appliances and can be set for 24 h or 1-23 h operation after sunset.

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