Sizing Guide for Solar Charge Controllers

Wednesday, 3 August 2016  |  Admin

Sizing guide for solar charge controllers

Most small solar battery systems are designed with a 12V lead acid battery.

The charge controller you require will depend on the number and type of panels you wish to run.

 

Panel

Charge controller recommended (when you have a 12V battery)

Design notes

100W Ulica panel

10A charge controller

 

150W Ulica panel

20A charge controller

 

250W Ulica panel

20A MPPT charger

 

 

 

 

Using your own panels?

 

 

12V panel rated up to 100W

10A charge controller

 

12V panel rated up to 200W

20A charge controller

 

30V panel rated up to 300W

30A MPPT charger

 

 

 

 

Installing more panels?

 

 

2 x 100W Ulica panels

20A charge controller

Connect the panels in parallel

2 x 150W Ulica panels

20A charge controller

Connect the panels in parallel

2 x 250W Ulica panels

40A MPPT charger

Connect the panels in series or parallel

 

10A & 20A Solar Charge Controllers

 

20A & 40A MPPT Solar Charge Controllers

 
 
 
 
 
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