[Nut-upsuser] Ablerex MARS

[Charles Lepple]

On 4/22/06, lonely wolf <wolfy at nobugconsulting.ro> wrote:
> The voltage doesn't look to have a linear dependency with the charge ...

Here's the charge curve used by the Tripp-Lite driver:

   http://boxster.ghz.cc/projects/nut/browser/trunk/drivers/tripplite.c#L456

Generally speaking, measuring the voltage to find charge is a bit
problematic unless you take into account the amount of current flowing
in or out of the battery as well (a real-world battery has non-zero
Thevenin resistance, so it is not a pure voltage source). The best you
can do is plot voltages over time (as reported by the UPS), and try to
fit the curve.

--
- Charles Lepple