JWLV
-.-. --.-
- Joined
- May 27, 2020
- Messages
- 579
You can always go over the max current. Just think of it this way: Your house AC outlet can provide 120V at 15Amps. If you plug in a small night light that takes 3 watts, it's not going to blow up with 1800 watts being pushed into it. The night light will just use what it needs. 3 watts.
Similarly, even if you have 50 panels that could provide 250A, and you connect it to your charge controller that has a 60A rating, it just means that the maximum current it will charge your battery is 60A. The 60A rating is output, not input. The charge controller will just use what it needs to charge your battery, up to 60A. Anything above that is just not used.
The max voltage rating, on the other hand, is for input. If the max voltage is 150V, you will blow it up if you connect something more than 150V to it. You should usually stay at least 10-20% below the max voltage rating due to variations in specs/testing methods and weather temperature.
Similarly, even if you have 50 panels that could provide 250A, and you connect it to your charge controller that has a 60A rating, it just means that the maximum current it will charge your battery is 60A. The 60A rating is output, not input. The charge controller will just use what it needs to charge your battery, up to 60A. Anything above that is just not used.
The max voltage rating, on the other hand, is for input. If the max voltage is 150V, you will blow it up if you connect something more than 150V to it. You should usually stay at least 10-20% below the max voltage rating due to variations in specs/testing methods and weather temperature.
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