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good 9V battery

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tooki:

--- Quote from: ali6x944 on March 26, 2017, 01:00:05 pm ---I generally try to avoid the use of alkali cells because of their  horrible leakage and crystallization problems...
So I would rather use a rechargeable battery or carbon-zinc battery aka heavy duty batteries because they are less prone to those problems and for carbon-zinc batteries they are much cheaper that alkaline batteries.
But it must be noted that the average capacity of the carbon-zinc batteries is a fraction of the poorest preforming alkaline...
A good source of info in this subject is this website:
http://rightbattery.com

--- End quote ---
Alkaline batteries leak when deep-discharged (And even then, not all brands leak as often. Duracell is the worst in this regard.). As long as you remove them when empty, they're fine.

edavid:

--- Quote from: amitchell on March 25, 2017, 01:57:44 pm ---Maybe this is worth a try 2 x 600mAh lithium rechargeable with charger:

https://www.amazon.com/EBL%C2%AE-Battery-Charger-Rechargeable-Batteries/dp/B00EY6BZWS/tag=metaefficient-20?th=1

--- End quote ---

The EBL lithium batteries are great.  I have 10 of them, and they all meet or exceed the rated 600mAh capacity.  If you buy them on eBay, you can get them for $2-3 each.

retiredcaps:

--- Quote from: Jester on March 26, 2017, 01:24:56 pm ---My early 90's Fluke 87 eats batteries for lunch (every 3 months or so).

--- End quote ---
@Jester,

If you would like help troubleshooting this, start a new thread and I can offer suggestions on why this may be happening.  The Fluke 80 series I should be drawing around 9uA when the rotary switch is in the off position.

See

http://mrmodemhead.com/blog/fluke-83-dmm-repair/

ali6x944:

--- Quote from: tooki on March 26, 2017, 04:06:48 pm ---
--- Quote from: ali6x944 on March 26, 2017, 01:00:05 pm ---I generally try to avoid the use of alkali cells because of their  horrible leakage and crystallization problems...
So I would rather use a rechargeable battery or carbon-zinc battery aka heavy duty batteries because they are less prone to those problems and for carbon-zinc batteries they are much cheaper that alkaline batteries.
But it must be noted that the average capacity of the carbon-zinc batteries is a fraction of the poorest preforming alkaline...
A good source of info in this subject is this website:
http://rightbattery.com

--- End quote ---
Alkaline batteries leak when deep-discharged (And even then, not all brands leak as often. Duracell is the worst in this regard.). As long as you remove them when empty, they're fine.

--- End quote ---
sadly enough it is true, the most expensive leak the most!!!
also how could Alkaline batteries leak? I mean why do they leak? what chemicals inside the cell could cause the leak?
I know it is NH4Cl that dissolves away the Zn casing in Carbon-Zinc batteries, that's way the old batteries used to leak...
but now it is some what leak resistant, I have not seen a catastrophically leaking carbon-zinc batteries in my life, especially because Panasonic batteries are well belt :)

Andreas:

--- Quote from: edavid on March 26, 2017, 04:29:24 pm ---
The EBL lithium batteries are great.  I have 10 of them, and they all meet or exceed the rated 600mAh capacity.  If you buy them on eBay, you can get them for $2-3 each.

--- End quote ---

What output voltage do they have? (do not find a datasheet).
2 cells so 6-8.4 V or more?

with best regards

Andreas

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