Mailinglist Archive: opensuse (1620 mails)

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Re: [opensuse] UPS : replacing battery with 12 volt Jelly Car Battery
On 2014-11-25 19:33, Anton Aylward wrote:

Being permanently "on
charge' is a good way to kill a battery -- for a variety of reasons.

It doesn't need to be, if correctly designed.

The charger circuit can switch the battery completely off when fully
charged. They are no longer a few discrete transistors, but full ICs
with tailored logics.

Some people batteries have died in two years. Mine is about 4 year old,
and normally it is connected to the mains while lappy is running. HP
batteries are said to die suddenly, one day to the next, and be expensive.

John raises the point about the screen, but hey, this under-the-desk,
re-purposed-as-a-firewall laptop is running 'headless'.

The screens, till recently, used fluorescent backlights, which are high
voltage items. Dunno how high exactly. Now they use LEDs instead: more
durable and less electricity.

Cheers / Saludos,

Carlos E. R.
(from 13.1 x86_64 "Bottle" at Telcontar)

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