Remember that the burden is on them to show it. But the reality is that when they bring up irrelevant shit like that and try to say that your issue isn’t covered under warranty, it will be on you to “remind” them of that burden, and tell them that what they are trying to do is absolutely fucking illegal under Magnusson-Moss.
Not for the battery itself.
They are allowed to void your warranty, if, for example, they can show it’s delivering out of spec voltage and that damaged the SoC.
Remember that the burden is on them to show it. But the reality is that when they bring up irrelevant shit like that and try to say that your issue isn’t covered under warranty, it will be on you to “remind” them of that burden, and tell them that what they are trying to do is absolutely fucking illegal under Magnusson-Moss.
The funny part is that rather than respecting this, they chose to cryptographically pair the parts, so they stop working if you replace them…