Board Thread:Game Discussion/@comment-26388545-20180930020115/@comment-66.110.216.10-20181001124336

Of course ambient temperature affects it... you just played through Summer.

It seems to happen when playing long hours, that the next time it just goes into burn mode quickly.

Good news is it's reversible - try taking a day break, also cycling the battery: letting it to 0%, then charging to 100% before turning on, you can do this up to 3 times end-to-end (some people will tell it wears the Li-ion battery, but it helps if done sparsely).

It may be that some thermal padding changes phase or something when heated for long periods, but pausing use enough reverses the thermal behavior - some thermal memory effect is observable.