diy solar

diy solar

EG4 Lifepower4 48V Top Balancing Firmware.

I can't get photos anytime today, but I can describe how everything is connected.

Each battery ties to the bus bar sold by Signature Solar (https://shorturl.at/amzG8)

They are connected each with 24" 6AWG conductors. The positive and negative conductors leading to the inverter are at opposite ends of the bus bars, this connection is made with 4/0 copper welding cable meant for 600A. They connect to the Solark battery terminals via this bus bar (https://www.solar-electric.com/homegrid-hg-sol-ark-15k-busbar-pair.html).

Leaving the communications hub at the default settings caused major issues with the Solark even after setting the CAN communication back to Solark after the firmware reset it to EG4. This was described by another forum member here where PV production gets limited once the batteries are "full", I am taking a much more cautious approach and hope that PV production isn't limited by lowering the charge voltage on the hub to 56.2V.
Sounds like your LP4 batteries are newish. Is that accurate?
 
Sounds like your LP4 batteries are newish. Is that accurate?
The two at the top are brand new, the other four are about 8 months old now.
The two new ones just need to exercise a bit from what I can tell. Setting the hub back to 56.2V for charging has resolved the issues where literally everything was sent into OV protection/warning which would cause my inverter to act insane at full.
 
Stats from home assistant queried directly from the battery bank. Doing a deeper discharge today to hopefully help this issue.
 

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