H
HeinzW
Hi,
we are currently researching if we can use secondary button cells (LIR2540) in a medical product we develop.
As to EN 60601 secondary lithium-ion cells have to apply to IEC 62133 - but IEC 62133 just applies to all lithium-ioncells EXCEPT button cells.
[Btw. anyone knows WHY they are let out? Are they regarded "Safe" or "UNSAFE"?]
So how would the process be in that case?
Are we allowed to use the coin cells - With just doing our own risk management?
Should we let the cells be tested to IEC 62133 - would it even help since the norm does not apply?
[If so - do we need two protection circuits? One for the battery & one for the charger if they are hard wired (soldered on board)]?
As far as I know IEC 62133 should be extended to coin cells in the next version. Sadly we want to use them now. Any help is appreciated.
regards
Heinz
we are currently researching if we can use secondary button cells (LIR2540) in a medical product we develop.
As to EN 60601 secondary lithium-ion cells have to apply to IEC 62133 - but IEC 62133 just applies to all lithium-ioncells EXCEPT button cells.
[Btw. anyone knows WHY they are let out? Are they regarded "Safe" or "UNSAFE"?]
So how would the process be in that case?
Are we allowed to use the coin cells - With just doing our own risk management?
Should we let the cells be tested to IEC 62133 - would it even help since the norm does not apply?
[If so - do we need two protection circuits? One for the battery & one for the charger if they are hard wired (soldered on board)]?
As far as I know IEC 62133 should be extended to coin cells in the next version. Sadly we want to use them now. Any help is appreciated.
regards
Heinz
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