Alex, I am currently testing some lithium ion battery pack for a major international renowned manufacturer. None of their lithium ion battery packs are vented and many are already Accessory Listed to UL60950. This leads me to believe that venting is not a problem with such battery packs. However, you must protect the cells from overcharge and discharge under normal and abnormal conditions.
Regards This e-mail message may contain privileged or confidential information. If you are not the intended recipient, you may not disclose, use, disseminate, distribute, copy or rely upon this message or attachment in any way. If you received this e-mail message in error, please return by forwarding the message and its attachments to the sender. PETER S. MERGUERIAN Technical Director I.T.L. (Product Testing) Ltd. 26 Hacharoshet St., POB 211 Or Yehuda 60251, Israel Tel: + 972-(0)3-5339022 Fax: + 972-(0)3-5339019 Mobile: + 972-(0)54-838175 http://www.itl.co.il http://www.i-spec.com -----Original Message----- From: McKinney, Alex [mailto:mckinne...@ems-t.com] Sent: Thursday, March 14, 2002 9:51 PM To: IEEE EMC-PSTC Forum (E-mail) Subject: IP67 Water Ingress Testing All, We are currently working on a new handheld product that will be tested for IP67 Water Ingress (1 meter submersion for 30 minutes) and we are trying to determine the safety impact of not including the lithium ion battery pack as part of this rating. This product will be UL60950 Listed. One question that has also been asked of me is whether this battery pack needs to be vented. A few lithium ion cell manufactures whom I have researched on this say that the pack should definitely be vented. If vented then the IP67 rating on the battery pack is definitely out of the question without designing some costly pressure release mechanism. I guess my ultimate question is, how safe is a lithium ion battery pack if water is introduced in to the circuit? Any help is greatly appreciated. Regards, Alex McKinney Safety Engineer LXE, Inc. Tel: 770-447-4224 x3606 Fax: 770-447-6928 ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list" ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
