Strange NiMH charger behavior... it won't shut off

[Bright+]

I have a cordless phone with 750mAh NiMH AAA batteries.

The bundled Philips labeled batteries test 750mAh on MH-C9000, but it has a high resistance from day one and it will drop out if I use the speaker phone on a loud setting.

Rayovac 4.0 LSD also checks out at 750mAh on MH-C9000, but for some reason the phone's internal charger will never "terminate".

Anyone have an idea?

 

[Illum]

cordless phones use Nicd cells and more often than not they are constantly trickle charging the cells...I think its a design feature.

If I left my cordless phone off the charger overnight by tomorrow morning it'll give me the low-batt beep, but with normal use I can talk on it for 4 hours and it won't beep the low-batt signal

 

[Lynx_Arc]

there is no such thing as a 750ma AAA nicad, but it is possible they just designed it to trickle charge anyway.

 

[Bright+]

It comes with a pair of NiMH and its designed for NiMH

I know when it has stopped charging because the LCD screen shows its done.

The 750mA bundled batteries terminate after overnight charging.

Rayovac 4.0 won't.
They exhibit similar capacities on MH-C9000