Charge controllers

Pulse width modulation (PWM) charging can double the life of a battery compared with On-Off charging, and typically sends 30% more solar energy into the battery per day. Average battery State-of-Charge is 90-95% compared to 55-60% for On

• 4A Sunguard solar charge controller:
  An economical, small solar charge controller suitable for 12V battery systems. This high quality 4.5A 12V marine grade PWM solar regulator by Morningstar is suitable for up to 60W.
  
  

Sunguard 4 solar charge regulator