"P"&"NP" designators on Lithium batteries .

[TooManyGizmos]

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I think we need a new battery industry standard to use when referring to "Lithium Ion" batteries - especially the rechargeable version .

I propose we start using a "Designator" at the end of the battery number to signify it's either "Protected" or "Non-Protected".


P = Protected (ie: 18650P)

NP = Non-Protected (ie: 18650NP)


This would eliminate confusion and eliminate the need to type out the entire words when referring to a battery.


Could this standard be implemented . Who could we contact to suggest it ?

Any other thoughts on this from the CPF family ?

Comments welcomed ........


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[TooManyGizmos]

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Well..................................

It appears this is not such a good idea................since it got no reply and no interest shown




..................ah...Dang . :shakehead:shrug::tinfoil:


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[TinderBox (UK)]

I think people are just too embarrassed to say anything, because they did not think of this themselves.

sound like a good idea to me.

P = protected N= not protected.

regards.

 

[jayflash]

Good ideas. Using one letter, N or P, further eliminates confusion and potential for a printing error.

 

[Paul_in_Maryland]

It's a great idea.
When I was earning my Master's in Technical Communication, I studied the "Duty to Warn." I would take it the P and NP several few steps further:

• In addition to the P or NP, include a hazard table to clarify which dangers the cell is protected against...or is not:
  
  (The following table should use tabs to align the red bullets below the NP.)
  
  P NP
  
  ● Overcharge
  
  ● Overdischarge
  
  ● Overtemperature!
  
  ● Overcurrent

• Include a verbal warning, such as DANGER! NOT PROTECTED Against Overtemperature. Many users will be unfamiliar with the abbreviations.
• State the hazard and its possible consequence:
  
  
  
  If heated above 57 deg. C (140 deg. F), may explode, causing serious injury or death.
• Include an ISO-standard danger symbol for those who don't understand English.
• Include symbols in the hazards table, as well.

Yes, it's a lot to include on such a small label. But if the label were designed by a human-factors expert (using a font like Arial Narrow), I think it could be done.

I live just 12 miles from the Consumer Product Safety Commission (CPSC). I'm tempted to enlist them in this effort. There would have to be significant input from stakeholders: makers, vendors, and users of lithium-ion cells.