Stopping battery deterioration

[- Bobb -]

For a laptop I'd pop out the battery, but how to stop degradation with
Nuvi's when not used/needed for a while ?

I have an old 265T and only use it extensively every few months on long
drives. original battery lasted years then dies so it wouldn't turn on. I
bought a new battery last winter and it was Ok for about 6 months but since
spring/summer when I use it I get the " Low Battery" message when I turn it
on and if I don't plug it in within a minute or two - it's dead. Perhaps I
have defective battery but I'm not a chemist. I figure that it was fine for
6 months so not a defect. Just wondering ... should I have plugged it in
every week for a few hours ? Leave in house on PC when not planning a trip
?

In general I only use it around here for traffic info - backups/detours etc.
Last week coming back from 100 miles away I heard major accident so plugged
it in/turned on for traffic info and to be able to press DETOUR. Worked Ok
but Low Battery signal after turning on. After then leaving charging in car
for a few days - still Low Battery if unplugged for a few minutes then dies.
So it wasn't that it was low and 'just needed a charge". Ongoing issue.
Worst case I'll just use plugged in but wondering how to best maintain
battery life ( in next one maybe)
Thanks for any advice from those with experience.

[Ed Pawlowski]

On Mon, 3 Sep 2012 12:23:35 -0400, "- Bobb -" <bo...@noemail.123>
wrote:

>For a laptop I'd pop out the battery, but how to stop degradation with
>Nuvi's when not used/needed for a while ?
>
>I have an old 265T and only use it extensively every few months on long
>drives. original battery lasted years then dies so it wouldn't turn on. I
>bought a new battery last winter and it was Ok for about 6 months but since
>spring/summer when I use it I get the " Low Battery" message when I turn it
>on and if I don't plug it in within a minute or two - it's dead. Perhaps I
>have defective battery but I'm not a chemist. I figure that it was fine for
>6 months so not a defect. Just wondering ... should I have plugged it in
>every week for a few hours ? Leave in house on PC when not planning a trip
>?
>

Sounds like the replacement battery is poor quality, but it is still
not good to let it go dead in any case.

I plug mine in every month or so to keep it above 50%.

Eventually, any battery will die for good, but 6 months is rather
short.

[Hans-Georg Michna]

I don't know the N�vi. What battery or batteries does it use?

Generally the idea is to use Sanyo eneloop batteries or similar
ones that do not have any significant self-discharge and avoid
all other NiCd and NiMH batteries like the plague.

Also avoid deep-discharging them or, even worse, reverse-charing
them. That can kill them in no time. It happens when two or more
are connected in series and get discharged. Then the weakest one
can be deep- or reverse-charged.

For Li-Ion accumulators the rule is to have them at some
intermediate charge when you store them for a longer time,
because being topped up strains them and being deep-discharged
kills them. Normally their built-in electronics protect them
from either fate, but when the battery is stored for a long
time, then the electronics are powerless against the admittedly
very slow self-discharge.

Hans-Georg

[Gene E. Bloch]

On Tue, 04 Sep 2012 14:58:06 +0200, Hans-Georg Michna wrote:

> I don't know the Nï¿œvi. What battery or batteries does it use?

A built-in battery that is inaccessible to the user.

OTOH, there are replacement batteries that come with a tool or two to
open the case and instructions.

--
Gene E. Bloch (Stumbling Bloch)

[Gene E. Bloch]

On Tue, 4 Sep 2012 15:58:12 -0700, Gene E. Bloch wrote:

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> From: "Gene E. Bloch" <not...@other.invalid>
> Newsgroups: alt.satellite.gps.garmin
> Subject: Re: Stopping battery deterioration
> Date: Tue, 4 Sep 2012 15:58:12 -0700
> Organization: Astrolabe
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>
> On Tue, 04 Sep 2012 14:58:06 +0200, Hans-Georg Michna wrote:
>
>> I don't know the Nï¿œvi. What battery or batteries does it use?
>
> A built-in battery that is inaccessible to the user.
>
> OTOH, there are replacement batteries that come with a tool or two to
> open the case and instructions.

By coincidence, less than a day later Sunshine posted some real
information in response to another post.

If you are still curious about this, you can look at that reply:

Message-ID: <9kte48po1v4fjnv9g...@4ax.com>