Translations:Simplified PWM charge controller sizing and selection/10/en

Step 4: Select a charge controller

A single charge controller is the simplest and cheapest option, but for larger systems multiple charge controllers often are used in parallel. The final chosen charge controller should:

1. Function at the DC system voltage.
2. The charge controller(s) should have a total current rating that is larger than the minimum current rating (Step 2). Common charge controller current ratings: 4.5 A, 5 A, 6 A, 10 A, 12 A, 15 A, 20 A, 25 A, 30 A, 35 A, 40 A, 45 A, 50 A, 55 A, 60 A.