-----Original Message----- From: Cotty [mailto:[EMAIL PROTECTED]] Sent: Monday, April 29, 2002 10:28 AM To: Pentax List Subject: Re: LX motor drive - question
>James, I have 2 dead power packs and I want to have them "repacked". >Could you give me the specs ? It could be usefull to the guy (have >only seen guys in there...) who will do the job. You've probably had this site pointed out to you a dozen times by now, but here it is anyway. The best by far: http://www.ozemail.com.au/~distudio/publications.html follow the links to rebuilding a NiCad Pack LX. HTH --- Rob's site is excellent, but I would add one tip. Most battery sellers can have the packs made for you (and shrink wrapped together), saving you some some of the work. The charge for building the packs is usually fairly low. Bernd is correct about the sensitivity of NiMH batteries to overcharge. An inexpensive timer (like one of those vacation light timers you can get for your lamps) will solve this problem (also not a bad idea with NiCd packs, too). Ever since I started celling my packs with NiMH cells, I have been telling myself that I need to find time to build a smart charger (or better yet, a smart fast charger) for the packs. I never seemed to get it done, though. Perhaps now that I have picked my cameras back up... The huge plus of NiMH packs is that they are less succeptable to memory issues so you can charge partially discharged packs w/o worry. If you use NiMH packs, you can build them from 1/3 AA cells. They range from 225 mah to 300 mah. The NiCd cells suggested by the article are 1/3 A cells with a 225 mah rating. NiMH cells are also a bit more environmentally friendly. Oh, and the 16 in my original post is a brain-fart ofsorts. Slow charge times for 100 percent discharged cells can be calculated with the formula (capacity mah / charge mah * 1.4). My packs are celled with 275 mah NiMH cells, which works out to 16 hours. <http://www.advanced-battery.com/BATTGUID.HTM> has a quick overview of basic battery info. Confused yet? James Rupprecht - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
