In article , The Natural Philosopher
wrote:
Bodincus wrote:
(18/06/10 13:58), Chris Blunt:
On Fri, 18 Jun 2010 13:31:24 +0100,
wrote:

B) However, that proves my point. The relationship between voltage
and residual power is non-linear, and the residual power inside the
battery - whatever type it is - is not related to the voltage
between the dipoles.

So WHY the devices are still using voltage as a value to measure if a
battery is still delivering the needed power?

What else could they measure?
During idle time, small bursts through a fixed resistance circuit to
measure both voltage (and its drop under load), and current. A bit of
computation and you can measure how much oomphf the cell has left. BTW,
I hereby claim Intellectual Property for this idea.

claim away.

Its nonsense.

Knowing what current you can draw is meaningless.

The way of testing partly discharged U2s (aka D-cells) at TVC was to put an
AVO on the 10 amp range across the battery terminals. It the needle kicked
up to 5 Amps, then they could go out again in a Uher; if not, they went in
a box marked 'Used', from which we helped ourselves.

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From KT24

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