Battery Myths vs. Battery Facts

[concept0]

Was looking around to find out if alkaline batteries would be adversely affected by using them in freezing temps, and I stumbled upon this article. It had some interesting information, so I though I'd post it:

http://www.greenbatteries.com/batterymyths.html

 

[AA6TZ]

Was looking around to find out if alkaline batteries would be adversely affected by using them in freezing temps, and I stumbled upon this article. It had some interesting information, so I though I'd post it:

http://www.greenbatteries.com/batterymyths.html

Thanks! Very useful info. :thumbsup:

-Clive

 

[mdocod]

this link has a few errors:
http://www.greenbatteries.com/libafa.html

(same site)..

The "myth" section isn't too bad.

 

[concept0]

this link has a few errors:
http://www.greenbatteries.com/libafa.html

(same site)..

The "myth" section isn't too bad.

What are you trying to say, that you can't believe everything you read on the internet?! :eek:

[world... collapsing... all... around... me...]

 

[concept0]

this link has a few errors:
http://www.greenbatteries.com/libafa.html

Out of curiosity, what's incorrect on this page?

 

[jerry i h]

Out of curiosity, what's incorrect on this page?

Li-ion batteries actually include special circuitry to protect the battery from damage due to overcharging or undercharging.
Nope. Some Li-ions have PCB's, some don't. When you purchase, you have to be clear as to which ones you need and why.

Lithium ion batteries are not available in standard cells sizes (AA, C and D) like NiMH and NiCd batteries.
Nope. All standard alkys (except 9v.) have a Li-ion sibling that is identical in size, but not voltage.

Li-ion batteries use lithium compounds which are much more stable than the elemental lithium used in lithium batteries
Nope: backwards. The lithium primaries from Energerzer, L91/92 AA/AAA, are just as stable as alkys. The RECHARGEABLE lithiums Li-ion's are the ones that will give you problems.

 

[concept0]

Li-ion batteries actually include special circuitry to protect the battery from damage due to overcharging or undercharging.
Nope. Some Li-ions have PCB's, some don't. When you purchase, you have to be clear as to which ones you need and why.

Lithium ion batteries are not available in standard cells sizes (AA, C and D) like NiMH and NiCd batteries.
Nope. All standard alkys (except 9v.) have a Li-ion sibling that is identical in size, but not voltage.

Li-ion batteries use lithium compounds which are much more stable than the elemental lithium used in lithium batteries
Nope: backwards. The lithium primaries from Energerzer, L91/92 AA/AAA, are just as stable as alkys. The RECHARGEABLE lithiums Li-ion's are the ones that will give you problems.

This page is written for laypersons... From their perspective, all but the last one would be true.

I'm pretty sure all commercial products incorporating Li-ion batteries incorporate a protection circuit, otherwise there would be tons of reports of Li-ion cells dying all the time. Most people don't buy standalone Li-ion cells and chargers.

They do have identical sized Li-ion cells, but if this page said it then you know that people would go out and blow up their stuff!

And you're right, that last one is just plain wrong...

 

[45/70]

Beware of "experts"

Dave

 

[jerry i h]

...
I'm pretty sure all commercial products incorporating Li-ion batteries incorporate a protection circuit, otherwise there would be tons of reports of Li-ion cells dying all the time...

Ummm...again, Nope. Remember all those recalls of laptop computer batteries? They were Li-ion battery packs without sufficient protection circuits. Millions of Li-ion battery packs had to be turned in as defective.

...They do have identical sized Li-ion cells, but if this page said it then you know that people would go out and blow up their stuff!...

Go to www.batteryjunction.com. Many actually have blown up their stuff, so the merchant on this website has many warnings so that buyers know that the reason their electronic toy has melted is because a 14500 is not interchangeable with a AA alky :poke:.

 

[concept0]

Ummm...again, Nope. Remember all those recalls of laptop computer batteries? They were Li-ion battery packs without sufficient protection circuits. Millions of Li-ion battery packs had to be turned in as defective.

I think key word there is "sufficient." I'm pretty sure that they had protection circuits, but that they were insufficient. I don't think there are any commercially available (read: available at walmart) devices that actually use unprotected cells.

Anyway, I'm not saying that you are wrong on any of those points. Just that some of the information you point out would be superfluous or even dangerous to the newbs that probably read that page...

 

[Wattnot]

Beware of "experts"

Dave

Well you've heard the definition of an "expert," right? It's right in the sound of the word itself:

EX - a has been
SPURT - a drip under pressure

:crackup::crackup:

 

[shadowjk]

Nope. All standard alkys (except 9v.) have a Li-ion sibling that is identical in size, but not voltage.

There are Li-Po batteries in the 9V form factor.

So that leaves just the 4.5V and 6V alkaline/zinc form factor without a Lithium cousin. Maybe because those sizes are rare and the other (AAA, AA, C, D, 9V) are used and available globally.

 

[VidPro]

There are Li-Po batteries in the 9V form factor.

So that leaves just the 4.5V and 6V alkaline/zinc form factor without a Lithium cousin. Maybe because those sizes are rare and the other (AAA, AA, C, D, 9V) are used and available globally.

also they now have a new li-fe-po that actually could replace a 9v, the li-po 9volts are actually 8.4v-6v type and are not adequite for most uses :-(
by using 3x li-fe they might have finnaly gotten a rechargable 9v that is acceptable replacement.