We had the same issue with a relative new (under warranty) received battery.
Cleaned the filter, but it intermittently did shut off when using. [br]
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What helped was removing the cyclone from the motorunit. Follow theses steps till step 7; https://www.ifixit.com/Guide/Dyson+DC58+Cyclone+Replacement/
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What helped was removing the cyclone from the motorunit. Follow theses steps till step 7; https://www.ifixit.com/Guide/Dyson+DC58+Cyclone+Replacement/52745
Then remove the filter if not done already and let the cyclone soak in warm water with some soap.[br]
+
Flush the cyclone, until water comes out clean. Let it dry and re-assemble.[br]
We had the same issue with a relative new (under warranty) received battery.
Cleaned the filter, but it intermittently did shut off when using. [br]
What helped was removing the cyclone from the motorunit. Follow theses steps till step 7; https://www.ifixit.com/Guide/Dyson+DC58+Cyclone+Replacement/
Then remove the filter if not done already and let the cyclone soak in warm water with some soap.[br]
Flush the cyclone, until water comes out clean. Let it dry and re-assemble.[br]
[br]
Worked for our DC58