Electronics > Projects, Designs, and Technical Stuff
good 9V battery
edavid:
--- Quote from: Andreas on March 26, 2017, 08:56:08 pm ---
--- 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?
--- End quote ---
8.4-8.5V charged, 6.0V cutoff
IanB:
--- Quote from: ali6x944 on March 26, 2017, 08:41:06 pm ---also how could Alkaline batteries leak? I mean why do they leak? what chemicals inside the cell could cause the leak?
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Under certain circumstances chemical reactions inside an alkaline cell can produce gas bubbles which pressurize the inside of the cell and force electrolyte out through the seals.
Zinc chloride cells do not produce gas bubbles in the same way, so as long as the cell or battery is contained within a sealed outer shell it will not generally leak.
StillTrying:
I was going to buy a few EBL lithium batteries, if most of their running voltage is only about 7.2V ( 2x3.6 ) I'm glad I didn't now!
I settled for 250mAh long shelf life Ni-Mh from 7dayshop.com which are fine - so far.
Prehistoricman:
A lot of 9V batteries have 6 AAAA batteries inside. I took one apart and was transporting this string of small cells when one exploded out of my hand! I'd prefer them to leak slowly rather than quickly.
It was probably a Duracell.
edavid:
--- Quote from: StillTrying on March 26, 2017, 11:43:02 pm ---I was going to buy a few EBL lithium batteries, if most of their running voltage is only about 7.2V ( 2x3.6 ) I'm glad I didn't now!
I settled for 250mAh long shelf life Ni-Mh from 7dayshop.com which are fine - so far.
--- End quote ---
I think that if you compare to a 6 cell NiMH battery, the EBL lithium will always have a higher voltage during discharge...
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