450/200 MPPT with USB to VE.Direct on Raspberry Pi dropping production when battery getting full!

Hi everyone,

on one of our Systems we have a Raspberry Pi Running with a 450/200 MPPT over VE.Direct, when Battery is nearly full Production of the MPPT 450/200 is stopping - after around 11-25min MPPT is back from 17Watt to max Production. On other Systems we have same Battery’s running with 250/70 MPPT VE.Direct or 450/200 with VE.Can on Cerbos no problems at all - any idea?

Diffrence Between USB and VE.Can Connection… both MPPT’s are 450/200.



MPPT State is normal.

There was a similar Problem with the MPPT 100/20

After updating from MPPT Firmware 1.16 to 1.17 - the MPPT 450/200 über VE.Direct is working normal now… no Power drop for 10-30min now.

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it happened again…