General > General Technical Chat
Is it just me or have rechargeable NiMH improved?
<< < (4/10) > >>
steve30:
Personally, I'd say NiMH cells are a lot better than they used to be. Especially the LSD ones.
tom66:
I seem to recall the pet theory with LSD NiMH was it was just older technology, the problem with NiMH was pushing up to say 2850mAh (which I believe Duracell marketed at one point) was making the leakage current on the order of a few mA, enough to discharge the cell within a month or two.  Going back down to 2400mAh alleviated a lot of these issues.  Has this been disproven?
Bud:

--- Quote from: Zoli on November 14, 2022, 05:17:30 am ---
--- Quote from: Bud on November 14, 2022, 04:45:36 am ---
--- Quote from: deadlylover on November 14, 2022, 02:49:45 am ---If you have an IKEA nearby, their LADDA series of batteries are excellent .

--- End quote ---
In Canada IKEA discontinued LADDA batteries. Too bad, they were cheap and good. I liked them.

--- End quote ---
Hmmm:
https://www.ikea.com/ca/en/search/products/?q=ladda
Last weekend(Nov 5) Ikea Coquitlam was pretty full of them; sometimes they're sold out, even for weeks in a row.

--- End quote ---
Those are rechargeables. I was talking about regular non-rechargeable batteries, in yellow jacket.
wraper:
Currently low self-discharge NiMH are very common. If labeled as pre-charged, you can be sure they are LSD cells. Older NiMH went from fully charged to flat in a month if simply left alone.

--- Quote ---I took my new Duracells out of the pack and they barely fit into my electronics (very tight fit).
--- End quote ---
Stumbled on the issue recently when bought 10 wireless wall thermostats. Alkalines fit fine and are easy to remove. Usual eneloops fit tight and not easy to remove, high capacity ones and high capacity amazon basics fit super tight and are very hard to remove. Found ANSI standard, measured battery dimensions. Conclusion is that device manufacturers do not adhere to the standard which says AA must be between 13.5mm and 14.5mm in diameter, and devices must be designed to accept that. Alkalines I measured were mostly about 13.8-13.9mm. Thickest NiMH 14.2-14.3mm.
alm:

--- Quote from: tom66 on November 14, 2022, 01:08:48 pm ---I seem to recall the pet theory with LSD NiMH was it was just older technology, the problem with NiMH was pushing up to say 2850mAh (which I believe Duracell marketed at one point) was making the leakage current on the order of a few mA, enough to discharge the cell within a month or two.  Going back down to 2400mAh alleviated a lot of these issues.  Has this been disproven?

--- End quote ---
When Sanyo Eneloop was introduced in 2005, they compared the self discharge rate of the 2000 mAh (typical) Eneloop to 2500 mAh (typical) regular NiMH batteries, where the Eneloop had 85% capacity left after one year, and the regular NiMH battery was basically flat. Now Panasonic (who bought the Eneloop brand from Sanyo in 2013) sells Eneloop pro batteries with 2500 mAh typical capacities that have 85% capacity left after one year. So your claim is that the 2500 mAh (typ) Eneloop pro batteries are the same as the 2500 mAh (typ) non-LSD batteries Sanyo produced in 2005?


--- Quote from: Bud on November 14, 2022, 01:13:11 pm ---Those are rechargeables. I was talking about regular non-rechargeable batteries, in yellow jacket.

--- End quote ---
I thought this topic was about rechargeable batteries?
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod