Inverter charger set up?

[cat]

New set up - back up for well pump

I dont known the correct set up for the new inverter charger?

inverter:
Dc to ac power inverter charger for sump pump. 110 220V Pure Sine APC 6048

www.sigineer.com



https://ca.renogy.com/48v-50ah-smart-lithium-iron-phosphate-battery/



As per the spec for the battery:

Maximum Charge/Discharge Current: 50A
Charge Voltage:54V

The closest two battery type positions on the inverter are
1 and 9
For 1
CV 56V, Float 54.8V
9
CV 50.25V, No Float

If I choose battery type 1, the battery could be overcharged.
but, if I choose battery type 9, the battery could be under charged.

what should i select? Thanks

Note: for now...all is installed and working well without charge setting on inverter (amazing to have the pump running when closing the main ?)

 

[DIYrich]

Option 1. Note: CV and Absorption are the same.

Recommended Charge Profile for DIY LiFePO4 Batteries *Sticky Post*

12V 4S LiFePO4 Battery w/ BMS: Absorption: 14.5V Float: 13.6V Inverter Cut-off: 10.7V-12V (depending on size of load and voltage drop etc) 24V 8S LiFePO4 Battery w/ BMS Absorption: 29V Float: 27.2V Inverter Cut-off: 21.4V-24V 48V 16S LiFePO4 Battery w/ BMS Absorption: 58V Float: 54.4V...

diysolarforum.com

Your battery has a high end voltage range of 55.5 volts. That means they didn't cheapen out with 15 cells. So 56 v should be fine.

If you can, limit charging to 25a. 10a would be better.

 

[cat]

Option 1. Note: CV and Absorption are the same.

Recommended Charge Profile for DIY LiFePO4 Batteries *Sticky Post*

12V 4S LiFePO4 Battery w/ BMS: Absorption: 14.5V Float: 13.6V Inverter Cut-off: 10.7V-12V (depending on size of load and voltage drop etc) 24V 8S LiFePO4 Battery w/ BMS Absorption: 29V Float: 27.2V Inverter Cut-off: 21.4V-24V 48V 16S LiFePO4 Battery w/ BMS Absorption: 58V Float: 54.4V...

diysolarforum.com

Your battery has a high end voltage range of 55.5 volts. That means they didn't cheapen out with 15 cells. So 56 v should be fine.

If you can, limit charging to 25a. 10a would be better.

Thanks a lot! Will try this...?