lifepo4?

[MadDogMayCry0]

Can be used for lifepo4 with out any changes in a code?

[amperpirat]

regarding to the datasheet, the MAX17055 uses a versatile algo to distingish between different chemistries. So yes, LiFePo can be used without changing anything.

[ziyaddev]

https://pdfserv.maximintegrated.com/en/an/AN6358.pdf

MAX17055 USER GUIDE
Page 12 section 1.2.8 says :

1.2.8 Lithium Iron Phosphate Support (LiFePO4)
The MAX17055 supports lithium iron phosphate (LiFePO4) batteries with a special model configuration. To produce good state-of-charge
(%) accuracy performance, it is necessary to characterize and model the specific LiFePO4 cells being used. The MAX17055 provides
additional algorithm support specifically for the challenges associated with LiFePO4 and other flat OCV chemistries.
The OCV curve of LiFePO4 is much flatter than conventional lithium cobalt chemistries, which produces a greater sensitivity to the
algorithm's interpretation of cell voltage and open-circuit voltage. A LiFePO4 battery has two voltage plateaus. Using the ScOcvLim register
as a keep-out window, the fuel gauge limits OCV interpretation within a specified OCV voltage range. The default keep-out window is 3.275V
to 3.350V.