Product overview:

The UK solar power specialist Photonic Universe Ltd is proud to offer this brand new powerful 20A solar charge controller with advanced communication technology for charging 12V or 24V batteries using solar panels.
   Our promise:
  • No-quibble 30 days return period
  • UK repair or replacement warranty
  • Free lifetime technical product support
  • Deep industry expertise and knowledge
    •



This high quality, brand new powerful 20A 12V/24V solar charge controller is designed to protect batteries whilst charging them, with automatic cut off to prevent over-charging and deep discharge. The controller uses PWM (Pulse Width Modulation) technology which increases charge acceptance and prolongs the life of your battery. Often PWM technology can recover some lost battery capacity.

This controller stops reverse current at night (from the battery back to the solar panel) so your battery won't lose any charge. It has many other protection functions such as over charge / discharge, over load, short circuit, overheating etc. Other features of this controller include LED indicators, temperature sensor, and a load "on/off" button. One of the greatest benefits of this powerful 20A controller is the small size - only 16x8cm.

This controller can work with sealed, gel and flooded batteries (the default is sealed) or a user-defined battery type (please note battery type can only be changed from default using one of the communication methods listed below). The controller can accept up to 320W (12V battery) / 640W (24V battery) of solar power input, which makes it a perfect choice for small or medium solar PV systems with a battery and load such as in a campervan or boat (for maximum efficiency of charging 12V batteries by solar panels with output voltage higher than 25V please consider our MPPT solar charge controllers).

This model also features advanced communication technology, which offers the user the opportunity to monitor and program parameters for the controller through various methods:

1) The controller can be connected to a remote meter MT50 with an LCD screen, which displays system performance information, and allows the user to manually adjust parameters and load settings

2) An RJ45 to USB cable can be used to connect the controller directly to your PC / laptop, where parameters and settings can be monitored and adjusted via a free computer program - Solar Station Monitor (Windows-based PCs and laptops only).

Using one of these communication methods, the user will gain access to various charging parameters such as voltage, current (separately for solar panel / load), battery state of charge, accumulated charge and discharge energy, min/max voltage and other information. If required the user will also be able to amend the battery type and capacity, set charging volts for different charging stages, specify the duration of each charging stage, create a user-defined battery type with charging parameters specific to their battery (if the pre-existing options are unsuitable), personalise the 'load' settings (e.g. set timers for lighting, fans, pumps) and more.

In addition to the built-in temperature sensor, the controller has a pair of terminals for connecting a remote temperature sensor, which can be attached directly to the battery to measure the battery temperature more precisely and optimise the charging process.

Controller specifications:

  • Rated current 20A
  • Fully automated operation and auto 12/24V selection
  • Wide solar input voltage range up to 50V
  • 3 pairs of terminals (input, battery, output)
  • LEDs to indicate charging, battery and load
  • Temperature sensor for automatic compensation (-3mV/°C/2V)
  • Over load protection (≥1.05 times the rated discharge current)
  • Short circuit protection (≥2 times the rated discharge current)
  • Over charge / discharge, overheating and other protection features
  • Self-consumption: ≤ 8.4mA (12V) / ≤ 7.8mA (24V)
  • Working temperature: -35C to +50C
  • Terminals for wire up to 10mm2
  • Size: 15.9 x 8.1 x 4.8 cm
  • Weight: 300 g
  • Multiple mounting holes for ease of installation
The controller comes with a detailed user manual 

If you have any questions about this product or you need our free advice please contact us via eBay messaging (tick the box "This is not about an item" if you don't know this item number).

Payment:

  • We accept Pay Pal, cheques, credit and debit cards, and bank transfer payments. If you choose a cheque payment, please note it might take up to 2-3 weeks to get processed and cleared. Other payment methods are normally much faster, and they should be used for urgent orders. Buy it now listings will require an immediate payment via eBay.

Delivery:

  • Please note that import duties, taxes, and charges are not included in the item price or shipping cost. If the courier requires payment of these local charges to complete the delivery, they will be your responsibility as a buyer.
  • Upon receipt of the item, please examine it carefully. In the unlikely event of any damage in transit, please report it to us immediately by email or phone, but in any case no later than 7 days after receipt of the item. To enable us to deal with the courier efficiently, we may ask for some additional details, e.g. photographs of the damage and packaging.

Returns:

  • If you change your mind within the first 30 days of receipt of the item, we will be happy to accept it back and refund your payment. You will need to notify us via email / phone within 30 days of receipt that you intend to return the item, request the return address and send the item back within a further 14 days at your cost. To be eligible for a full refund, the item must be new, unused, undamaged and correctly packaged. Please ensure that we receive the item in its brand new, original condition, i.e. take reasonable care to wrap and protect it on the way back to us.

Warranty:
  • This product is covered by a 1 year warranty.

About us

Photonic Universe Ltd is a company based in London, United Kingdom. We design and supply solar and wind renewable energy products and complete off-grid power systems for various applications, to both trade and retail customers. Tens of thousands of clients all over the world rely on our products to generate clean energy for their households, vehicles, boats and remote places with no access to mains electricity.

We strongly believe that solar and wind energy can provide significant benefits and we are doing our best to allow you to buy these quality solar products at fair prices. We've had a lot of positive feedback from our customers who have been impressed by the high quality of our products and excellent service.

We are VAT registered in the UK and can provide VAT receipts upon request. Photonic Universe is a registered trademark in the UK.