23 Jun
2015
23 Jun
'15
9:55 p.m.
On Tuesday, June 23, 2015 at 11:42, Marc Verdiell wrote:
Thanks David.
You're welcome.
I might put NiMH batteries instead....
That may not be advisable, given the continuous constant-current trickle
charger in the CPU power supply. The Panasonic "Nickel Metal Hydride
Technical Handbook" recommends charging for no more than 10-20 hours,
saying:
"The overcharging of nickel-metal hydride batteries, even by trickle
charging, causes a deterioration in the characteristics of the
batteries. To prevent overcharging by trickle charging or any other
charging method, the provision of a timer to regulate the total
charging time is recommended."
Panasonic's "Nickel Cadmium Batteries Technical Handbook," on the other
hand, says explicitly that continuous trickle charging for Ni-Cds is a
recommended charging method.
-- Dave