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Rectangular black solar charge controller with blue LCD display and dual USB ports

Powertraveller A308189 30A PWM solar charge controller 12V/24V dual USB

SKU CH-79KF-BFKKB MPN A308189

A 30 A PWM charge controller for 12 V or 24 V lead-acid batteries with dual USB ports up to 2.5 A and an LCD display

  • Voltage output24 V
  • Output currentBlack&Red, solar charge controller
  • Rated voltage3.6 V
  • Working voltage24 V
  • Solar cell output currentBlack&Red, solar charge controller
  • Product typeSolar Panel
  • Automatic 12V/24V detection simplifies setup
  • Dual USB ports deliver 5V/2.5A for device charging
  • 30A PWM regulation handles up to 780W on 24V systems
  • LCD screen shows status and allows parameter adjustment
  • Multiple protections guard battery against overcharge and short circuits

PWM Solar Charge Controller 30A

The Powertraveller A308189 is a 30A PWM solar charge controller designed for 12V and 24V battery systems. It manages charging from solar panels automatically using a built-in microcontroller that memorises user-set parameters. Dual USB ports provide 5V 2.5A output for charging phones, tablets or other USB devices. An LCD display shows system status and allows mode switching.

Suits lead-acid battery systems only

This controller works exclusively with OPEN, AGM and GEL lead-acid batteries and accepts DC input from solar panels up to 50V maximum PV voltage. It is not suitable for lithium-ion, nickel-metal hydride or other battery chemistries. Builders needing MPPT topology, higher charge current or AC input compatibility should look at alternative controllers.

30A PWM charge current at 12V or 24V

The unit delivers a maximum 30A charge current with 390W maximum PV input power at 12V and 780W at 24V. Three-stage PWM charge management with overcurrent, short-circuit, reverse-connection, low-voltage and overcharge protection helps prolong battery lifespan. Connection ports accept 6mm wire.

How it compares

Measured against everything we stock in Solar-Powered Chargers & Devices, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 75% of the 874 comparable items (median $25.99).

Specifications

Product
Brand namePowertraveller
Model nameA308189
Part numberA308189
Product typeSolar Panel
Product colorBlue
Power
Voltage output24 V
Output currentBlack&Red, solar charge controller
Rated voltage3.6 V
Working voltage24 V
Solar cell output currentBlack&Red, solar charge controller
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Product weight0.141 kg

Questions about this item

How do I wire the Powertraveller A308189 controller to my 12 V battery and solar panel, and what mistake should I avoid?

Connect the battery first, then the panel, using up to 6 mm² cable; the controller auto-detects 12 V or 24 V, but it only accepts lead-acid OPEN, AGM or GEL batteries — lithium or NiMH will cause it to shut down.

What maintenance or replacement will the controller need over time?

The unit has no user-serviceable parts; if the 30 A PWM circuitry or the dual 5 V / 2.5 A USB ports fail after the 12-month guarantee, the whole controller must be replaced.

What limit appears first when the controller runs continuously at full load?

At 12 V the PV input is capped at 390 W and at 24 V at 780 W; exceeding either value or pushing panel voltage above 50 V triggers automatic shutdown to protect the battery.

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