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Photonic Universe Ltd 

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Bringing you the benefits of solar power 

 

Registered office: 

Tel: +44 (0) 203 150 11 11 

13 David Mews 

Fax: +44 (0) 203 150 12 12 

Porter Street 

Email: 

info@photonicuniverse.com

 

London  W1U 6EQ   UK 

Web shop: 

www.photonicuniverse.com

 

 

 

Q. Can I upgrade the solar kit to generate more power and charge my batteries faster? 

A. The solar charge controller can work with solar panels with up to 260W (12V) or 520W (24V) combined 
power. Therefore, you can add another solar panel to your kit only if you are charging 24V batteries. If you 
are charging 12V batteries, you will need to upgrade the solar charge controller and cables before adding 
an extra panel. It is essential that the second solar panel is made of the same type solar cells from the 
same manufacturer, and it has the same power rating. If you need help with upgrading your solar kit 
please contact 

Photonic Universe

 for assistance using the contact details below. 

Q. Can I run 240V AC household appliances directly from my 12V battery? 

A. No, you can only run 12V DC appliances directly from your battery. If you also want to run 240V AC 
household appliances you need an off-grid pure sine wave power inverter (see Appendix 3 for more 
details). 

 

Troubleshooting 

It is important to remember that if your battery is not getting enough charge, it does not necessarily mean 
there is a problem with the solar charging kit. In most cases the power drain from the battery would simply 
be higher than the power generated by the solar charging kit (especially in the winter when you might 
have a noticeable reduction in solar energy output and an increase in the energy consumption at the same 
time). Another reason could be that there is a power leakage in your system. Only after disconnecting the 
battery from the system (e.g. vehicle / boat system) and from all your loads, and when you then left it 
charging for a considerable amount of time with no or little effect on the battery, should you use the 
following troubleshooting options: 

 

Disconnect and reconnect the system (solar panel should be disconnected first, then the load, and 
then the battery; connection in the reverse order: battery, load, and then the solar panel). 

 

If the controller does not recognise the battery (upon connection the battery light on the controller 
remains switched off), make sure that the battery generates at least 12.0V for troubleshooting 
purposes. If necessary, charge the battery by other means first. We recommend measuring the 
voltage directly from the battery terminals of the controller to make sure there is no broken link 
between the controller and the battery, and to ensure the polarity is correct.  

 

Disconnect the battery from your vehicle / boat / off-grid system 

(both “+” and “-”) so that there is no 

power drain or leakage. 

 

Check all connections to ensure they are secure and clean 

 

Check polarity of the battery connection and the solar panel connection 

 

Ensure the solar panel is exposed to sufficient light 

– ideally position it to face the sun directly 

 

For more information refer to the Troubleshooting section of the solar controller / display manual 

 

Warranty 

The solar charge controller included in this set is covered by 2 (two) year manufacturer warranty after 
purchase. Please refer to the warranty section of the solar charge controller manual for more information. 
The remote LCD display meter included in this set is covered by 1 (one) year warranty provided by 
Photonic Universe. We will repair or replace any products with defects at our discretion.  

 

Disclaimer 

Working with electricity and batteries can be dangerous. The information provided in this 
manual is for general guidance only. All work should follow the safety standards and should 
be carried out by an appropriately qualified person. 

Photonic Universe Ltd is not responsible for any damage or injury caused by inappropriate 
installation or use of the product.

 

 

Summary of Contents for 20A MPPT

Page 1: ...MPORTANT Please follow the order of installation carefully Changing this order may result in false readings incorrect wiring or damage to your equipment 1 Before you install the solar kit please make...

Page 2: ...connection order if you need to remove or replace the battery Fitting the solar panel to your roof 1 Make sure all the components of your solar charging kit are disconnected when you start fitting the...

Page 3: ...attery normally used in caravans motorhomes cars boats motor cycles or in off grid power systems Q Can the kit charge a bank of several batteries A Yes The batteries should be the same type capacity a...

Page 4: ...en you then left it charging for a considerable amount of time with no or little effect on the battery should you use the following troubleshooting options Disconnect and reconnect the system solar pa...

Page 5: ...mance and monitoring details about your system in an easily accessible and visible place The remote meter also allows you to programme many parameters on your solar charge controller such as the batte...

Page 6: ...for large or powerful appliances such as fridges pumps and inverters Absorbed Glass Mat technology Completely sealed non spillable and maintenance free Low self discharge 3 4 years design service lif...

Page 7: ...com London W1U 6EQ UK Web shop www photonicuniverse com Appendix 3 Need an inverter for your battery to run 240V household appliances Choose 12V or 24V DC pure sine wave off grid power inverter from...

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