question

shmol avatar image
shmol asked

MPPT 75/15 "Battery high voltage" after connection PV

I've bought few new MPPTs. Connected them identically. One of them shows "Battery high voltage" AFTER connection PV.

I've tried to reset it by disconnection everything, waiting 5 mins, then connecting battery first. As soon as I connect PV it shows the error.

Battery is 26V, PV is 45V. Other MPPT work fine on the same cables.

MPPT Controllers
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

1 Answer
klim8skeptic avatar image
klim8skeptic answered ·

@shmol it sounds like the mppt's battery voltage has set itself to charge a 12v battery.

Check that the battery voltage in battery settings.

3 comments
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

shmol avatar image shmol commented ·
Yes, it sounds so. I know that this MPPT setups itself on the first power on. To reset it I need to disconnect it for few minutes. So I did.

I don't have any battery settings as the only control I have is Cerbo GX connected by VE.Direct.


0 Likes 0 ·
Show more comments