Kim, The UL standard for battery packs is UL 2054. If you will be seeking UL approval to UL 60601-1 they may require the pack to meet UL 2054 or include those tests in the UL 60601-1 evaluation. For UL 2054, the pack charge and discharge will be evaluated at worst case currents with single faults on any components that do not possess UL Recognition. Overcharge testing will also be conducted. You should definitely find out if the UL 2054 tests will be required ahead of time. Best Regards,
Jody Leber Program Manager [email protected] http://www.motorola.com/producttesting blocked::http://www.motorola.com/producttesting> MPTS 1700 Belle Meade Court Lawrenceville, GA 30043 770.338.3581 P 404.387.1224 C 847.761.3145 F ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Kim Boll Jensen Sent: Tuesday, April 14, 2009 8:25 AM To: EMC PSTC Subject: Li-Po battery and UL/EN 60601-1 Hi all We have a medico product with a Li-Po battery back. The pack have UR approval, but this is only for the cell not including the protection/charging circuit integrated in the cell. The solution is to integrate a simple protection circuit in the main product. This could be done by a Zener diode between poles and a PTC in the positive pole + a normal Li-Po charging controller (+ diode in charger connector for external charger PSU for reveres polarity.) Is there a UL standard for Li-Po safety or is there any UL design requirements for such a protection (eg. Double the PTC and Zener diodes) Best regards, Mr. Kim Boll Jensen Bolls Rådgivning Ved Gadekæret 11F DK-3660 Stenløse Phone: +45 48 18 35 66 [email protected] www.bolls.dk - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
