I bought some of these a few months ago on Amazon. They lose their charge very quickly just sitting waiting to be used and when used in my Roku, they last about half as long. My intended use for these was to use them in a blood pressure machine, HOWEVER, they’re bigger than a normal AA battery and wouldn’t fit. They’re too fat.
Thanks for sharing the useful info. 
i didn’t follow but what was the price before prime day
Price right now on the one store to rule them all is $16.65 ($15.82 with Subscribe & Save), but you can get 20% off an order with $30 of qualifying products. Still leaves the total for this item at $13.32.
16 pack is $21.28 plus the 20% off a qualifying $30 purchase and an extra 10% off for purchases using Amazon Prime credit card, compared to the 5% or 6% for using the same card here.
Some cookware brands that compete with Amazon Basics items were available for significantly less for several weeks than their price during Prime Day. A 5.3 qt Merten & Storck dutch oven in Aegean Teal went from $96.95 to $169.95 (Cloud Gray is now $108.90).
I’m seeing them for $12.52 on the store that shall not be named as a prime day deal.
You can say the name and post the link to the item if you’d like. It’s ok here.
I know. It’s just more fun to pretend it’s a forbidden.
Oooh. Carry on.
The ones you’re referring to are the 2,000 mah version ($12.52), not the 2,400 mah version (currently $16.84) being sold here.
I second the fact that the batteries really do drain very quickly and are larger than they should be, the same goes for their AAA, which were actually misshapen.
Are these 1.2V or 1.5V, never seen rechargeable 1.5V…
The listing states: * LOW SELF DISCHARGE: Maintains 50% capacity for 1 year; ideal to power household appliances or to use while traveling
2400mAh/12mos= 1000mAh lost a month sitting @ 6mos would be 1200mAh left in batteries, actually & theoretically
Thats pretty high self discharge for my taste
*Edit: my math was wrong thats 200mAh a month, damn not bad
Are you talking about the diagram? It shows this as 1.2V
I have some AA sized batteries with a lithium ion cell and voltage regulator to step it down to a constant 1.5V. They’re pricier, but the higher voltage works a lot better in some devices, such as the battery operated can opener I use.
(Note that I am not staff. I just volunteer to help out on the forums.)
Googled a fact:
Voltage has to do with the chemistry. Alkaline and zinc-carbon cells have a chemistry that develops 1.5v. NiCd and NiMH cells only develop around 1.2v per cell. The trade off is less potential difference in exchange for being rechargeable.
Is this voltage regulator built into the battery housing?
Hi there. These are being pulled from Amazon inventory so we don’t have a lot of information. Here it is on Amazon:
The ones I bought (aka not the ones listed here) do. Just do a search on the mothership for ‘rechargeable lithium 1.5v AA’ and bask in the wonderful search results chaos of non-rechargeable lithium, NiMH, NiCad, disposable batteries, and/or a cat among the actual items you’re considering.