On Fri, 24 Jul 2020 18:52:23 -0700 (PDT), AK posted for all of us to digest...
Dewalt is kind enough to build their drill batteries so you can rebuild them with 18650 batteries.
No so with Dyson.
https://imgur.com/AgmnXMc
Have a great evening,
Andy
Looks like the same but the Dyson has solder tabs on it. The original looks
like it is made by LG. Look up the LG # on the web or take your battery to a
re-builder and have tabs welded on.
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Tekkie