Author Topic: Lithium battery certifications and rules.  (Read 3664 times)

0 Members and 1 Guest are viewing this topic.

Online SimonTopic starter

  • Global Moderator
  • *****
  • Posts: 17720
  • Country: gb
  • Did that just blow up? No? might work after all !!
    • Simon's Electronics
Re: Lithium battery certifications and rules.
« Reply #25 on: June 24, 2021, 06:33:47 pm »
Yea that is probably why the post office won't even take NiCD or NiMH, it has no certificate and without one they won't ship it :palm:
 

Online SimonTopic starter

  • Global Moderator
  • *****
  • Posts: 17720
  • Country: gb
  • Did that just blow up? No? might work after all !!
    • Simon's Electronics
Re: Lithium battery certifications and rules.
« Reply #26 on: July 05, 2021, 10:37:25 am »
I can't actually find any regulations on incorporating a battery into equipment. I think the difference here is around what I call my device. If I call it a battery then um, it probably wants looking at. If I call it a power station because it has a removable battery and other circuitry then it's not a battery. But I have to make the battery removable. UK law states that:

Quote
Appliances into which batteries are or may be incorporated
7.—(1) No person shall place on the market an appliance into which a battery is or may be incorporated unless that appliance is—

(a)designed in such a way that a waste battery can be readily removed from that appliance; and
(b)accompanied by instructions showing how the battery can be removed safely and, where appropriate, informing the end-user of the type of the incorporated battery.
(2) Paragraph (1) shall not apply where for safety, performance, medical or data integrity reasons continuity of power supply is necessary and requires a permanent connection between the appliance and the battery.

(3) In this regulation “waste battery” means any battery which is waste within the meaning of Article 1(1)(a) of Directive 2006/12/EC of the European Parliament and of the Council on waste(1).

So who get's to arbitrate on paragraph 2? that looks like an open invitation to ignore the clause. We would be taking the devices back in any case and possibly recycling components and enclosures and then return the batteries to their source for recycling which is already paid for. You pay £1/kg in the price of lithium batteries for recycling when you send them back "for free".
 

Offline f4eru

  • Super Contributor
  • ***
  • Posts: 1081
  • Country: 00
    • Chargehanger
Re: Lithium battery certifications and rules.
« Reply #27 on: July 05, 2021, 08:14:50 pm »
Translation:
MAKE THE BATTERY REMOVABLE


(when possible)

Offline penfold

  • Frequent Contributor
  • **
  • Posts: 675
  • Country: gb
Re: Lithium battery certifications and rules.
« Reply #28 on: July 06, 2021, 05:55:58 pm »
Whether it's called a "power station" or a "battery" it sounds like it's removable. Though I do wonder how much electronics you could put in it before it stops being a battery. Can you still get away with sticking "return to the manufacturer for safe disposal" or did they put a stop to it?

Considering UN38.3 is self certifiable, then back to the original question, I'd be surprised if you couldn't get away with certifying a battery pack on the basis of pre-certified cells. Apart from operating thermals, I don't see many of the original tests being invalidated by being in an enclosure so long as the method of securing was appropriately considered.

 

Online SimonTopic starter

  • Global Moderator
  • *****
  • Posts: 17720
  • Country: gb
  • Did that just blow up? No? might work after all !!
    • Simon's Electronics
Re: Lithium battery certifications and rules.
« Reply #29 on: July 06, 2021, 06:09:21 pm »
Translation:
MAKE THE BATTERY REMOVABLE


(when possible)

Considering the batteries are supplied with flying leads, the last thing we need is people cutting the wires off and having a short. We as the manufacturer are dutybound to take the batteries back so would rather do it safely in their enclosure.
 

Offline nctnico

  • Super Contributor
  • ***
  • Posts: 26682
  • Country: nl
    • NCT Developments
Re: Lithium battery certifications and rules.
« Reply #30 on: July 08, 2021, 09:01:13 am »
No, choose a battery pack with connectors (like a laptop has). There are so many standard form-factor battery packs you can buy. Extra bonus is that you are not bound to a single supplier.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Online SimonTopic starter

  • Global Moderator
  • *****
  • Posts: 17720
  • Country: gb
  • Did that just blow up? No? might work after all !!
    • Simon's Electronics
Re: Lithium battery certifications and rules.
« Reply #31 on: July 08, 2021, 06:02:49 pm »
No, choose a battery pack with connectors (like a laptop has). There are so many standard form-factor battery packs you can buy. Extra bonus is that you are not bound to a single supplier.

care to share some examples? There is an abundance of preapproved modules that come with just flying leads. As for something standard like what laptops have, I was never aware of any such standard, I thought it was war among the titans and my current laptop has a single large pouch cell inside it. I'd also like my battery to have a very specific odd ball voltage. this is high enough to allow the equipment to work without an 85% efficient boost converter that diminishes capacity but not too high that the machine becomes inefficient anyway.
 

Online SimonTopic starter

  • Global Moderator
  • *****
  • Posts: 17720
  • Country: gb
  • Did that just blow up? No? might work after all !!
    • Simon's Electronics
Re: Lithium battery certifications and rules.
« Reply #32 on: July 11, 2021, 08:37:51 am »
As it happens reading the actual testing requirements if I was to produce a battery "of UN38.3 approved batteries" no testing is required..... I can do that up to 6.2kWh of battery or a battery with up to 500g of lithium.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf