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2oldman

Ca

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Posted: 04/18/19 09:54am Link  |  Quote  |  Print  |  Notify Moderator

myredracer wrote:

On Duracells, I'm danged if I'm going to get caught by the mafia prices when the batteries are right at the checkout.
I guess this is called a rock and a hard place. Also, 'pay me now or pay me later.'

pianotuna

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Posted: 04/18/19 10:09am Link  |  Quote  |  Print  |  Notify Moderator

Hi,

That's why I tried LI AA and AAA. I did not have good results--but that may be because my RV was in storage some times at -40.

I get equal life or perhaps longer from alkaline.

D.E.Bishop wrote:

schlep1967 wrote:

Just once. Spend the money for the Energizer Ultimate Lithium Batteries. Once you see how much longer they last, you will realize they are cheaper than a dozen cheap batteries.
X-2



Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

MrWizard

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Posted: 04/18/19 04:33pm Link  |  Quote  |  Print  |  Notify Moderator

i use rechargables in almost everything, that can use them
flashlights, lanterns, B&D screwdriver etc..
always have some spares charged up, ready to swap out


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ktmrfs

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Posted: 04/18/19 05:44pm Link  |  Quote  |  Print  |  Notify Moderator

on batteries leaking, my experience is that with alkaline I've never had one that was not fully discharged leak. Now, more than once I've left dead batteries in something and if left long enough they leaked.

The chemical reaction that occurs during discharge is the major cause of a cell leaking. Hydrogen gas is generated during discharge, and/or the metal corrodes during discharge. once it vents there the potasium hydroxide in the cell often leaks out combining with air to form potasium carbonate a stable reasonably safe compound, but in the meantime it eats stuff up.

* This post was edited 04/18/19 05:50pm by ktmrfs *


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pianotuna

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Posted: 04/18/19 11:06pm Link  |  Quote  |  Print  |  Notify Moderator

Tom is more correct than I was. The actual numbers for LiFeS2 are 1.8 volts.

I found their life span poor and not cost competitive with alkaline AA and AAA from dollar stores.

Tom thank you for the correction and for getting me off my duff to research this.

Tom_M wrote:

pianotuna wrote:

myredracer wrote:

pianotuna wrote:

redracer,

The AA li have to have a voltage dropping resistor. I'm not at all happy with them.
You mean an internal one? Why is that and do other Li batteries like that?


The nominal voltage of lithium-ion is 3.60V/cell.
There are different chemistries of lithium cells. The disposable AA and AAA cells use Lithium Iron Disulfide which is 1.5 volts.

There are rechargeable AA and AAA cells which have a buck converter built into each cell.

A dropping resistor will not work. Half of the energy would be wasted in heat and you would get huge voltage swings depending on the amount of current drawn.


MrWizard

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Posted: 04/19/19 01:17am Link  |  Quote  |  Print  |  Notify Moderator

most of my AA AAA rechargeable cells are NiMh

hypoxia

Arizona

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Posted: 04/19/19 07:03am Link  |  Quote  |  Print  |  Notify Moderator

MrWizard wrote:

most of my AA AAA rechargeable cells are NiMh

In addition to leaking Kirklands I've had lots of leaking Duracells lately.

I have never had a leaky rechargeable battery but they don't seem to last as long on a charge as an alkaline battery. Sometimes that makes a difference.


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D.E.Bishop

Eagle Rock, CA

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Posted: 04/20/19 08:09am Link  |  Quote  |  Print  |  Notify Moderator

Here is the best review I found on batteries for use in DSLR. I have a Nikon Coolpix P510, a point and shoot that was manufactured to look like a DSLR. Fortunately it has a dedicated Lithium battery so I don't have any real experience with DSLR batteries.

Here is the article I found, article


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FlatBroke

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Posted: 04/20/19 12:27pm Link  |  Quote  |  Print  |  Notify Moderator

Duracell’s are junk! Can’t remember the last time I didn’t pull one out and it hadn’t leaked.



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DiskDoctr

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Posted: 04/21/19 11:28am Link  |  Quote  |  Print  |  Notify Moderator

shastagary wrote:

those sunbeam batteries are carbon-zink not alkiline


^^This^^ Alkaline are what you want.

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