|NiCad AAA rechargeable for the 49G|
Message #1 Posted by Vieira, Luiz C. (Brazil) on 10 Jan 2002, 12:36 p.m.
I'm test-driving a set of rechargeable AAA batteries, 250mAh, P-4SPA Panasonic, in my 48SX, but I intend using them with the 49G. Can I borough from any of you some previous experience on this? I am trying the rechargeable ones cause I needed to replaced the alkaline set for three times in less than one year. Of course, I upgraded the O.S. more than four times in the same period, among many data transfer operations between the calc and other calcs or computer. I did not take measurements to confirm, but I was told by two owners that data transfer is the most power-consumption operation. I thought O.S. upgrading was the most, cause of the 49`s flash-memory.
I have also seen some information at the Museum about power consumption in the 48G (posts or archive? I don't remember...), but I am not sure that the differences between alkalines AND NiCad`s were taken into account., say, 1.25V instead of 1.5V (each cell), different Volt X Current and Volt X Time curves, etc.
Anyway, the 48SX is running O.K. with a freshly charged set for about a week, normal operation (2~3 hours daily usage), what is no longer a reference. If there is something about it, I'd like to know.
Thanks and best regards.