Hi
Chances are if a new battery isn’t doing the trick it probably is the charger
For Dyson chargers there aren’t really any fixes apart from opening them up which can be dangerous due to them being power supplies which can give you a deadly shock if handled incorrectly
I personally have had Dyson chargers start acting strange for a bit when they get to a sertain age (probably just my bad luck though)
Just a little recommendation,I tend to prefer getting a authentic Dyson charger as non original chargers can damage them selfs and the dysons battery
Hopefully this answers your question
If not please do not hesitate to ask me anything even if it’s not to do with this dyson
Thanks:)
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Have you tried measuring the voltage coming out of the wall charger?
crwdns2934271:0crwdnd2934271:0 Andrew S crwdne2934271:0