Topcloud Solar Charge Controller - 20A - 12V/24V

This solar charge controller features an intuitive LCD display for monitoring status and configuri...

Best current price£13.04from OnBuy.com

All Offers

8 offers from £13.04 - £17.99

View price history by clicking the chart icon.

OnBuy.comSolar Charge Controller, Topcloud 10A Solar Panel Controller 12V/24V Pwm Auto Parameter Adjustable Lcd Display Solar Panel Battery Regulator With 190731997875
Free delivery in 1–3 days
£13.04
Visit shop
eBaySolar Charge Controller, Topcloud 30A Panel Controller 30A, Black
Free delivery in 1–3 days
£13.07
Visit shop

Product Information

Full details

The Topcloud 20A Solar Charge Controller is an essential component for DIY solar enthusiasts and off-grid power users who need a reliable, automated way to manage energy flow between solar panels and 12V or 24V battery banks. Its key strength lies in its industrial-grade microcontroller that intelligently handles charging cycles and safety protections without requiring constant user input. However, users should note that it is designed specifically for lead-acid battery chemistries—including OPEN, AGM, and GEL—and may not be suitable for specialized lithium-iron-phosphate (LiFePO4) battery systems.

All features

Model Part NumberH00010-T00001FBA
BrandTopcloud

Extended Product Information

FAQs

Can I use this with lithium batteries?

No, this controller is designed specifically for lead-acid battery chemistries such as OPEN, AGM, and GEL.

What is the maximum power this controller handles?

This is a 20A model, meaning it can manage a solar array output up to 20 amps. Refer to your solar panel specifications to ensure they fall within this limit.

Does it need to be mounted in a specific orientation?

It should be mounted vertically to allow for proper heat dissipation through the casing.

Why is the controller warm to the touch?

It is normal for the unit to generate some heat during high-current charging cycles. Ensure it is mounted in a well-ventilated space.

What happens if I disconnect the battery while panels are connected?

Always disconnect the solar panels before disconnecting the battery to prevent potential electrical spikes or damage to the controller.

Are the USB ports always on?

The USB ports are active as long as the controller is powered and the system is operating within normal safety parameters.

Troubleshooting

LCD display does not turn on.

Verify that the battery is connected correctly and has sufficient voltage to power the unit. Check for loose connections or blown fuses.

Battery icon is flashing on the screen.

This typically indicates the battery voltage is either too low or too high. Check if your battery bank matches the 12V or 24V system requirements.

Controller is not charging the battery even when sunny.

Ensure the solar panel cables are connected to the correct PV terminals and check that there is no debris blocking the panels.

Pros and Cons

Pros

  • Automatic voltage detection between 12V and 24V systems
  • Comprehensive protection suite keeps battery banks safe
  • Easy-to-read LCD screen for monitoring system performance
  • Reliable setting memory via internal microcontroller
  • Convenient built-in dual USB ports

Cons

  • Compatible only with lead-acid battery types (OPEN, AGM, GEL)
  • Limited to 20A charging current which may not support large arrays
  • Lacks advanced remote monitoring or Bluetooth connectivity

Setup, Compatibility & Care

For proper operation, always follow the connection order: connect the battery to the controller first, then connect the solar panels. This ensures the controller initializes correctly with the battery voltage.

Compatibility

  • Batteries: Supports 12V and 24V Lead-Acid (OPEN, AGM, GEL).
  • Capacity: Optimized for up to 20A of current. Ensure your solar array does not exceed this rating.

Care Instructions

  • Keep the controller in a dry, ventilated area away from direct moisture or water spray.
  • Periodically inspect wire terminals for signs of corrosion or looseness caused by thermal expansion.
  • Clean the exterior with a dry, soft cloth; do not use chemical solvents or abrasive cleaners on the LCD display.

Price History

DatePrice
Visit shop