I have 2 pylontech UP2500 24v batteries installed, running with RCT AXPERT VMIII  24v 3kw inverter.

According to PylonTech, the charging voltage should be between 28.3v - 28.5v. Normally cell voltage will be at 3.45volt nominal per cell. (I assume this is correct)

So, 3.45v x 8 Cells = 27.6v nominal. Charging should be at least 3.46v - 3.50v to trigger balancing. This will give you around 27.8volts charging. (THIS IS HOW I UNDERSTAND THIS..)

This is way lower than what PylonTech suggests.

Currently I have 28.2v as my bulk charging and 28.1v as "float" voltage. Best is not to run high voltages on Lithium batteries for a long period.

My aim is to run SOC between 90 and 95volts. Is this correct/good???

 

So, what I am asking here is, is my assumption correct here and what voltages I should use.

Any advice\suggestions from you experts here will be appreciated.

 

 

 

6 hours ago, IcePick1957 said:

I have 2 pylontech UP2500 24v batteries installed, running with RCT AXPERT VMIII  24v 3kw inverter.

According to PylonTech, the charging voltage should be between 28.3v - 28.5v. Normally cell voltage will be at 3.45volt nominal per cell. (I assume this is correct)

So, 3.45v x 8 Cells = 27.6v nominal. Charging should be at least 3.46v - 3.50v to trigger balancing. This will give you around 27.8volts charging. (THIS IS HOW I UNDERSTAND THIS..)

This is way lower than what PylonTech suggests.

Currently I have 28.2v as my bulk charging and 28.1v as "float" voltage. Best is not to run high voltages on Lithium batteries for a long period.

My aim is to run SOC between 90 and 95volts. Is this correct/good???

 

So, what I am asking here is, is my assumption correct here and what voltages I should use.

Any advice\suggestions from you experts here will be appreciated.

 

 

 

Devil inserted 90 to 95V instead of % for SOC.

1 minute ago, Scorp007 said:

Devil inserted 90 to 95V instead of % for SOC.

Oops!! Yes It must be some gremlins that is to blame LOL! 🤣

Was suppose to be % .....