Derby Chang wrote: > Roman Melihhov wrote: >> I'm using 2 CR-V3 Li rechargeables in my K100D Super and Albinar >> cherger for 1 battery, so I charge them in sequence and they stay >> charged when unused. That's one good thing about them. Although they >> last longer too I'd noticed Li batteries tend to die fast when camera >> indicate half the charge or less. Just my 2ยข... >> >> >> > > Roman, > > I am pretty sure I remember Pentax recommending lithium rechargeables > *not* be used in the *ist DS, and presumably that applies for all of > the other AA-type cameras as well. They work, but the higher current > output isn't healthy for the AF motor IIRC. > > Another vote for me for the Eneloops in my *ist DS, since I don't use > it much. It is nice to know the charge will be there when I want to > use it occasionally. > > D >
Checking my facts again, the Pentax manuals state which types of batteries can be used (of which lithium rechargeables are not included). Here is a pretty detailed explanation why, not from Pentax, but a very clear nonetheless. "Now consider a 4.8-6V circuit divided into 1.2-1.5V, typical 4x AA, or even 2x CR-V3 (Li-Mn). You'll probably be fine with slight variances in your AA like 1.6V that even push it up to 6.4V total. Now consider using 2x RCR-V3 (Li-Ion), which is chemically impossible of delivering anything less than 6V, and has a nominal operation of 7.2V! That's 1.8V. And if you take it off the charger, and it's not clamped, it could be as over 8V high as 8.4V total, a whopping 2.1V divided!" http://thebs413.blogspot.com/2007/07/li-ion-is-not-lithium-eg-li-mn-li-fe.html D -- [EMAIL PROTECTED] http://members.iinet.net.au/~derbyc -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
