portable panels

keetre101keetre101 Registered Users Posts: 1
edited November 2 in Solar Beginners Corner #1
can 2 100 watt portable panels with their own charge controler be hooked to same battery


  • myocardiamyocardia Solar Expert Posts: 96 ✭✭✭
    edited November 2 #2
    Hi, and welcome to the forum. While you absolutely cannot share a solar panel/series of solar panels between two or more charge controllers, you absolutely can have as many charge controllers to one battery/bank of batteries as you desire. You will "just" get double the charging amperage as you are currently getting, with your current 2x50 watt/"100 watt" foldable panel.

    edit: As BB. says below, all of the charge controllers must be PWM, and not the more expensive MPPT version. The panels you are considering buying do in fact have PWM charge controllers bolted to their back, so they will work just fine with one battery.
  • BB.BB. Super Moderators Posts: 26,837 admin
    In general, as Myocardia says, yes, you can wire two panels to one charge controller (assuming specifications match), or panel+charger to battery bank x 2 (or more) in parallel).

    Details do matter--What solar panels, what charge controllers, and details about the battery bank (voltage, AH capacity, and type of battery(ies)).

    You can, with PWM controllers, share one solar array across several PWM type charge controllers--But, again, the details do matter (brand/model of charge controllers, battery bank sizes, are battery banks sharing a common electrical ground, size of solar array, etc.).

    In general, you want to keep things pretty simple--Makes it easier to debug if (when) something goes wrong down the road with the solar power system.

    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
Sign In or Register to comment.