Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
T <T@invalid.invalid> wrote
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
In an effort to help you, I looked up some recent reviews of power banks,
and most of them, as you likely knew already, are _not_ Ni-MH power banks.
<https://www.pcmag.com/picks/the-best-portable-chargers-and-power-banks>
<https://www.lifewire.com/best-rechargeable-battery-chargers-4589146>
<https://www.techradar.com/news/top-portable-chargers>
There are many "individual" AA and AAA Ni-MH battery chargers of course,
but you're looking specifically for a portable USB-C power bank, right?
<https://www.batteriesplus.com/charger/rechargeable-battery/nickel-metal-hydride>
Seems strange that it's hard to find a Nickel Metal Hydride portable power bank - but that first pass check didn't find any reliable reviews for you.
Who knew it was so hard to find?
Not me.
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not
much idfferent from zero.
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not
much idfferent from zero.
On 11/11/23 02:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not much idfferent from zero.
https://www.youtube.com/results?search_query=lithuim+battery+fires
T <T@invalid.invalid> wrote:
On 11/11/23 02:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I very much doubt you'll find powerbanks with NiMH. Best case is to find a portable phone charger that takes AA batteries, and carry your own NiMH batteries and charger.
On 11/11/2023 11:18, Theo wrote:
T <T@invalid.invalid> wrote:
On 11/11/23 02:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I very much doubt you'll find powerbanks with NiMH. Best case is to
find a
portable phone charger that takes AA batteries, and carry your own NiMH
batteries and charger.
There are a few, mainly by GP. As far as I could tell, though, none
seemed to have a USB-C connection. Mini and perhaps micro-USB, but not
USB-C. <https://www.amazon.co.uk/GP-Batteries-ReCyko-2600mAH-134DX411270AAHCEC4/dp/B07FN5JSDD>
On 11/11/23 04:11, Carlos E. R. wrote:
On 2023-11-11 11:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not >>> much idfferent from zero.
After two fires, city transport in Madrid has prohibited portable
electric vehicles inside buses and Metro (underground railway). This
breaks greatly the advantage of those vehicles, but it is true that
there have been recent fires, the one on the Metro stopping service
totally in one of the lines for hours.
The airline in which I flew this summer prohibits all kind of
batteries in the baggage that goes into the cargo hold. Even standard
AA batteries or button cell (watch) batteries.
They have to be manufactured perfectly or the
tendrils grow and kaboom. There is a lot of
temptation to cut corners to squeeze and extra
1/2 cent of margin out of them. Dell and
Samsung paid a dear price for that foolishness.
On 2023-11-11 11:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not
much idfferent from zero.
After two fires, city transport in Madrid has prohibited portable
electric vehicles inside buses and Metro (underground railway). This
breaks greatly the advantage of those vehicles, but it is true that
there have been recent fires, the one on the Metro stopping service
totally in one of the lines for hours.
The airline in which I flew this summer prohibits all kind of batteries
in the baggage that goes into the cargo hold. Even standard AA batteries
or button cell (watch) batteries.
T <T@invalid.invalid> wrote:
On 11/11/23 02:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not >>> much idfferent from zero.
https://www.youtube.com/results?search_query=lithuim+battery+fires
All powerbanks have management circuits which are designed to prevent the cells getting into a dangerous state where fire is risk. Some are better designed than others, so it's good to buy a high quality pack (ie not an Amazon brand made up of Scrabble letters, or from Aliexpress).
On 2023-11-11 11:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not
much idfferent from zero.
After two fires, city transport in Madrid has prohibited portable
electric vehicles inside buses and Metro (underground railway). This
breaks greatly the advantage of those vehicles, but it is true that
there have been recent fires, the one on the Metro stopping service
totally in one of the lines for hours.
The airline in which I flew this summer prohibits all kind of batteries
in the baggage that goes into the cargo hold. Even standard AA batteries
or button cell (watch) batteries.
On 2023-11-11 14:16, T wrote:
On 11/11/23 04:11, Carlos E. R. wrote:
On 2023-11-11 11:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is
not
much idfferent from zero.
After two fires, city transport in Madrid has prohibited portable
electric vehicles inside buses and Metro (underground railway). This
breaks greatly the advantage of those vehicles, but it is true that
there have been recent fires, the one on the Metro stopping service
totally in one of the lines for hours.
The airline in which I flew this summer prohibits all kind of
batteries in the baggage that goes into the cargo hold. Even standard
AA batteries or button cell (watch) batteries.
They have to be manufactured perfectly or the
tendrils grow and kaboom. There is a lot of
temptation to cut corners to squeeze and extra
1/2 cent of margin out of them. Dell and
Samsung paid a dear price for that foolishness.
The problem is that customers do not know when they are buying dangerous batteries. As it is not viable to prohibit whatever batteries from being
sold and used, the only protection is to prohibit battery powered
devices in critical areas.
We would need some organization examining all batteries and then
stamping some seal of safety.
All other batteries should be removed,
banned, fined.
It occurs to me. A discharged battery, stored somewhere, is dangerous?
Can it catch fire? I think not, but :-?
Because I'm wondering about my old disused phones and devices in
cupboards and boxes.
On 2023-11-11 11:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not
much idfferent from zero.
After two fires, city transport in Madrid has prohibited portable
electric vehicles inside buses and Metro (underground railway). This
It occurs to me. A discharged battery, stored somewhere, is
dangerous? Can it catch fire? I think not, but :-?
Because I'm wondering about my old disused phones and devices in
cupboards and boxes.
In article <kr9f5gFtvc1U3@mid.individual.net>, robin_listas@es.invalid >(Carlos E. R.) wrote:
It occurs to me. A discharged battery, stored somewhere, is
dangerous? Can it catch fire? I think not, but :-?
Because I'm wondering about my old disused phones and devices in
cupboards and boxes.
I don't believe so. However, a discharged Li-ion battery left in that
state for months may just die completely, and fail to charge when tried.
I've been informally experimenting with this for years, because I keep an >archive of old iPads and Android devices for reproducing software bugs. I >keep them permanently on charge. I've never had a fire, but I have had
quite a few devices with swelled batteries. As far as I've observed, the >danger factors apart from high temperatures are:
* Cheapness. The devices that swelled fastest were very cheap tablets.
* Lack of intended service life. Android phones intended for gaming
were surprisingly perishable, but any serious gamer would expect to
replace each device within a year.
* Hard usage: Batteries that are constantly being drained and then
recharged between test runs tend to suffer.
The quality of battery management software on devices tends to be related
to price. Since all the iPads I've treated this way were expensive iPad
Pros, the lack of swelling isn't too surprising.
John
In article <kr9f5gFtvc1U3@mid.individual.net>, robin_listas@es.invalid (Carlos E. R.) wrote:
It occurs to me. A discharged battery, stored somewhere, is
dangerous? Can it catch fire? I think not, but :-?
Because I'm wondering about my old disused phones and devices in
cupboards and boxes.
I don't believe so. However, a discharged Li-ion battery left in that
state for months may just die completely, and fail to charge when tried.
I've been informally experimenting with this for years, because I keep an archive of old iPads and Android devices for reproducing software bugs. I keep them permanently on charge. I've never had a fire, but I have had
quite a few devices with swelled batteries. As far as I've observed, the danger factors apart from high temperatures are:
* Cheapness. The devices that swelled fastest were very cheap tablets.
* Lack of intended service life. Android phones intended for gaming
were surprisingly perishable, but any serious gamer would expect to
replace each device within a year.
* Hard usage: Batteries that are constantly being drained and then
recharged between test runs tend to suffer.
The quality of battery management software on devices tends to be related
to price. Since all the iPads I've treated this way were expensive iPad
Pros, the lack of swelling isn't too surprising.
John
* Cheapness. The devices that swelled fastest were very cheap tablets.
* Lack of intended service life. Android phones intended for gaming
were surprisingly perishable, but any serious gamer would expect to
replace each device within a year.
* Hard usage: Batteries that are constantly being drained and then
recharged between test runs tend to suffer.
The quality of battery management software on devices tends to be related
to price. Since all the iPads I've treated this way were expensive iPad
Pros, the lack of swelling isn't too surprising.
Closer to home for me. My daughter had a charging scooter battery catch fire
in her garage while she and family were asleep. Fortunately a smoke alarm
woke them. The fire department was able to contain the fire mostly to the
garage though it did burn through one inside wall. The repairs to the house
cost thousands but it could have been much worse...
Now that I remember, at least one of my cameras recommends that when
storing the batteries for long time unused, do so uncharged.
Of course, this is a problem if you keep the camera in a cupboard and
expect to be able to use instantly if the occasion arises.
In an effort to help you, I looked up some recent reviews of power banks,
and most of them, as you likely knew already, are _not_ Ni-MH power banks.
It occurs to me. A discharged battery, stored somewhere, is dangerous?
Can it catch fire? I think not, but :-?
I've read that laptops should be stored with 50% to 80% charge, and I
just assumed it would be the same for cameras. Luckily my only
cameras are part of phones or laptops.
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
On Sat, 11 Nov 2023 17:47:29 +0100, Carlos E. R. wrote:
Now that I remember, at least one of my cameras recommends that when
storing the batteries for long time unused, do so uncharged.
Of course, this is a problem if you keep the camera in a cupboard and
expect to be able to use instantly if the occasion arises.
I've read that laptops should be stored with 50% to 80% charge, and I
just assumed it would be the same for cameras. Luckily my only
cameras are part of phones or laptops!
On 11/11/2023 10:14 AM, Stan Brown wrote:
I've read that laptops should be stored with 50% to 80% charge, and I
just assumed it would be the same for cameras. Luckily my only
cameras are part of phones or laptops.
My phone (Galaxy S10+) can be set to only charge to 85%. But I prefer a
full charge to start the day with (I'm an overnight charger) because you never know when you'll need it. So far at 4+ years I've not NOTICED any battery problems (crosses fingers)...
On Sat, 11 Nov 2023 14:37:24 -0000 (UTC), AJL wrote:
Closer to home for me. My daughter had a charging scooter battery catch fire >> in her garage while she and family were asleep. Fortunately a smoke alarm >> woke them. The fire department was able to contain the fire mostly to the >> garage though it did burn through one inside wall. The repairs to the house
cost thousands but it could have been much worse...
Wow -- glad it wasn't worse! I asked my bike shop before I bought it,
and they said the riskiest time for fire is while it's charging, or
while stored in high heat. I wonder about that fire Carlos reported
in the Madrid Metro -- is it super hot in those trains?
My ebike lives in my attached-but-uninsulated garage, but when I'm
not actually riding I remove the battery and bring it into the house
so it's not exposed to 100° heat. I charge it in the house, and check
the indicator periodically so that I can take it off charger
promptly.
On 11/11/23 03:33, Jeff Layman wrote:
On 11/11/2023 11:18, Theo wrote:
T <T@invalid.invalid> wrote:
On 11/11/23 02:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I very much doubt you'll find powerbanks with NiMH. Best case is to
find a
portable phone charger that takes AA batteries, and carry your own NiMH
batteries and charger.
There are a few, mainly by GP. As far as I could tell, though, none
seemed to have a USB-C connection. Mini and perhaps micro-USB, but not
USB-C.
<https://www.amazon.co.uk/GP-Batteries-ReCyko-2600mAH-134DX411270AAHCEC4/dp/B07FN5JSDD>
and only about 1/10 the capacity of a lithium polymer
power bank
Now that I remember, at least one of my cameras recommends that when
storing the batteries for long time unused, do so uncharged.
Of course, this is a problem if you keep the camera in a cupboard and
expect to be able to use instantly if the occasion arises.
Carlos E. R. <robin_listas@es.invalid> wrote:
[...]
Now that I remember, at least one of my cameras recommends that when
storing the batteries for long time unused, do so uncharged.
Strange recommendation! AFAIK, that advice is wrong for *any* type of battery and surely for a lithium battery, which a camera battery
probably is.
Of course, this is a problem if you keep the camera in a cupboard and
expect to be able to use instantly if the occasion arises.
Just charge it fully, but don't keep it in the charger when the
charging is finished. Sitting at 100% for a long time decreases the life
of lithium batteries. ~80% would be better, but most camera chargers
probably do not have such a maximum percentage setting/limit.
FWIW, I top up the batteries of our cameras (Nikon (small DSLR) and
Canon (zoom)) every three months and every time they take some time to
stop charging, so I assume they have lost some of their charge.
BTW, if this post ends unexpectedly, it's because this laptop has
caught fire and I have thrown it out of the wind
On 2023-11-11 11:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Any of you guys know of a portable charger power bank
that uses nickel metal hydride rather than a lithium
battery?
I doubt that there are factory new PBs that use this very old
technology. Energy density and durabilty are inferior.
What is the reason for this?
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not
much idfferent from zero.
After two fires, city transport in Madrid has prohibited portable
electric vehicles inside buses and Metro (underground railway). This
breaks greatly the advantage of those vehicles, but it is true that
there have been recent fires, the one on the Metro stopping service
totally in one of the lines for hours.
The airline in which I flew this summer prohibits all kind of batteries
in the baggage that goes into the cargo hold. Even standard AA batteries
or button cell (watch) batteries.
Do button or 9v batteries ever leak?
I recently uncovered my studfinder with an Engergizer Max, that I
hadn't seen for 3-1/2 years and it was still good.
On 2023-11-11 18:53, AJL wrote:
On 11/11/2023 10:14 AM, Stan Brown wrote:
I've read that laptops should be stored with 50% to 80% charge, and I
just assumed it would be the same for cameras. Luckily my only
cameras are part of phones or laptops.
My phone (Galaxy S10+) can be set to only charge to 85%. But I prefer a
full charge to start the day with (I'm an overnight charger) because you
never know when you'll need it. So far at 4+ years I've not NOTICED any
battery problems (crosses fingers)...
My current phone when charging overnight limits charge to around 80%,
but goes to 100% at the time the alarm bell rings. I can't have it not
fully charge on automatics.
In comp.mobile.android, on Sat, 11 Nov 2023 13:11:28 +0100, "Carlos E. R." <robin_listas@es.invalid> wrote:
On 2023-11-11 11:26, Jörg Lorenz wrote:
On 11.11.23 10:29, T wrote:
On 11/11/23 00:07, Jörg Lorenz wrote:
On 11.11.23 04:23, T wrote:
Hi All,
Much harder to catch fire
If correctly used this is and never was an issue. The probability is not >>> much idfferent from zero.
After two fires, city transport in Madrid has prohibited portable
electric vehicles inside buses and Metro (underground railway). This
breaks greatly the advantage of those vehicles, but it is true that
there have been recent fires, the one on the Metro stopping service
totally in one of the lines for hours.
The airline in which I flew this summer prohibits all kind of batteries
in the baggage that goes into the cargo hold. Even standard AA batteries
or button cell (watch) batteries.
Do button or 9v batteries ever leak?
I recently uncovered my studfinder with an Engergizer Max, that I hadn't
seen for 3-1/2 years and it was still good.
and only about 1/10 the capacity of a lithium polymer
power bank
That's why they're obsolete.
Chris <ithinkiam@gmail.com> wrote
and only about 1/10 the capacity of a lithium polymer
power bank
That's why they're obsolete.
One thing they're really good at is they have a low internal resistance.
That means the instantaneous current output is phenomenal .
It could still have niche uses as a high instantaneous current source.
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