Lifepo4 cutting off the power

[Tony1975]

Hello....
I have one battery 12v 200ah from blue carbon brand.
When I'm charging the battery at 12v30 amp with MPPT 60amp, and the battery gets 13.4 start to cutting the power, the mppt show on the screen "over voltage of the battery" what could be the problem?

 

[MisterSandals]

and the battery gets 13.4 start to cutting the power,

How are you determining the battery gets (to?) 13.4V?
The battery starts cutting the power? As in the BMS is disconnecting?
Do you have a smart BMS in that battery that you can check with an app?