Battery Longevity

polchraine
Posted 15/01/2010 - 14:46 Link
There are often discussions about which technology is best, which brand, self discharge, current capability, capacity &c for AA and AAA cells.

Well, beat this.

The remote control for one of my CD player was fitted with the Philips supplied R03P (AAA) cells in 1984/5 and are marked as 480mAh and date stamped 84-12.

They are still working. That is 225000 hours and even if the control had not been used and they were now flat is 2 uA (micro amps).

Off load they measure (4 in series) 6.06V which drops to a constant 5.6 when loaded and remains at that for 2 minutes - I could have held on for longer, but was satisfied. They immediately recovered to the 6.06V which suggests that there is still significant charge in them.

I think I am satisfied with them!
.
K20D, *istD, MZ-S, Super-A, ME Super, MX
DA* 16-50, DA* 50-135, DA* 300,
DA 50-200, FA 24-90, FA 20-35,
M 400-600, A 50 f1.4, A 28 f2.8, A 70-210, M 35-80, M 50 f1.7
A x2S teleconverter and a few others ...
Dangermouse
Posted 15/01/2010 - 16:50 Link
I'm a big fan of the Energiser Lithiums, my K-m came with a set that lasted for roughly 800 shots or six months. I've since replaced like with like and keep four spares handy.

However, I doubt they'll still be working in 2035!
Matt

Shooting the Welsh Wilderness with K-m, KX, MX, ME Super and assorted lenses.
Edited by Dangermouse: 15/01/2010 - 16:50
DELTIC
Posted 22/01/2010 - 12:52 Link
Strangely enough I have just disposed of the batteries from my 1987 Philips CD player!

Add Comment

To leave a comment - Log in to Pentax User or create a new account.



Proudly supporting Pentax User

Samsung Logo Asahi Pentax Logo