question

Janek Plathe avatar image
Janek Plathe asked

Multiplus-II in Hub-1-3 stuck in Float

Der All,

following issue,


My AGM 48 Volt battery system is not following the routine charge routine (Bulk-Absorb-Float) but basically stack in float mode and the corresponding voltage.

Maybe someone can tell me why the system is not starting the day in the normal bulk mode and increasing the voltage until absorption voltage is hit?

The weather is usually allowing this voltages and the batteries are in the morning down to SOC 70%.

In ESS the system was working properly, in HUB 1-3 it isnt.


My system:

My Multiplus-II in Hub-1-3 configuration (normally disconnected from the mains).

Previously I used ESS but I prefer islanding due to legal reasons, In ESS i did not have these problems.

Venus GX, AGM 48V 6 Kwh battery system.

FYI i played already with the "repeated absorption interval" setting, no changes.

Multiplus-IIbattery charging
1586939977119.png (28.2 KiB)
1586940024124.png (34.1 KiB)
1586940170554.png (59.0 KiB)
2 |3000

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

0 Answers

Related Resources

MultiPlus-II Product page 

MultiPlus-II Manual

MultiPlus-II 230V Datasheet 

VE.Bus Error codes

Additional resources still need to be added for this topic