The target would be many cycles per day, (<20) and a total lifetime of many months. The normal cells won't do it. On Fri, Jun 22, 2012 at 3:04 AM, Nily wrote: > How many cycles will you need (<50mA for a few 10s of mS)? > > -----Mensaje original----- > De: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]En nombre de > alan.b.pearce@stfc.ac.uk > Enviado el: Viernes, 22 de Junio de 2012 01:17 a.m. > Para: piclist@mit.edu > Asunto: RE: [EE] Low impedance coin cells > > >> The basic problem is that the customer WANTS a coin cell, because it fit= s > the space >> they have available, but I'm not aware of any coin cell that has a low > enough >> impedance for our moderate pulsed energy needs. >> (<50mA for a few 10s of mS) > > Are you sure the 2032 cell you originally quoted won't do this? I ask > because I got a rechargeable coin cell (pretty sure it's a 2032) to repla= ce > the battery in a wind up recharge =A0LED torch, and it drives the 3 LEDs > nicely, and I would have thought they would easily be drawing that curren= t > between the 3 of them (but haven't measured it) > -- > Scanned by iCritical. > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.1913 / Virus Database: 2437/5084 - Release Date: 06/21/12 > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .