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swellmarcel asked

MPPT 100/20 Voltage Drop, how do i check if the internal is brocken?

Hello Community,

i tried to finally connect my Panels first Time with the MPPT 100/20 and sadly the only thing i can observe, there is a huge voltage drop from 52V to 5,2V. Bluetooth is working. Connected via VE.Direct, everything seams to be fine. Fuse checked, ok, polarity checked, also ok. What else i can try? My thought is that there might be an internal fuse broken? Is there a way to open and check the MPPT? I tried already, but it seams to be glued together.

Thanks for advice and have a nice Weekend.

Cheers, M<arcel

Device list:

Multiplus 12/1600/70 (old microprocessor, sn starts with 19)

Cerbo Gx with Toch Display

Lynx Power In (Modified with Fuses like Lynx Distributor)

Smart MPPT 100/20

Smart Battery Protect

Smart Shunt

ESSMPPT SmartSolar
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Alexandra avatar image Alexandra ♦ commented ·

@swellmarcel@gmail.com

Make sure you havent clamped on the cable insulation. Yoir cable and connections are most likely faulty if the panles have voltage at the panles ut not the mppt.

Other than blown fuses this is the other cause.

If there is a fault usually is comes up in Victron connect.

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