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Sam the Ham


Sam the Ham
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Slave battery not charging

Hi Everyone. Here comes a totally new green one!

We have an Axpert 8K48V installed with  2 Dyness 48V/75A LiFe batteries installed. The  batteries  are wired up  in parallel. There are 4 solar panelsystem connected  to the  inverter to  charge  the  batteries  during  daylight  hours.  

Presently, the system works  - the PV charges  tte battery which  run the  load. At night the battery  is on Bypass and Escom charges the battery The problem  is - only ONE battery, the Master,  is charged.  The installer said  that  once the Master is fully  charged,  the Slave will  start acceptin a charge. This is the  4th day since  commissioning and the  Slave still  has not  taken a charge.   The in  staller has been  too busy to  come by.

Please Brainstrust, what needs to be  done to get  the  Slave working? 

Awaiting  anxiously for  some  guidance .

Regards 

Sam the  Ham

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Hi Sam 

Does the batteries have a communication attached to them (a lan cable)for the BMS? If not the inverter has no control on each individual battery and should charge both of them at the same time.

Edited by Peter Topp
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