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Such as these:
I AM GUESSING that 10000 mWh is a bit exaggerated...
I AM GUESSING that 10000 mWh is a bit exaggerated...
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I have a 21700 cell that has a built in Micro USB charger. Also have a 9V version for my Shot Timer.
If they could do this with CR123 or AA batteries I would be so happy.
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Not with the micro usb, but I am trying out some of the EBL rechargeable AA batteries that require a charger.
Not too impressed. They don't seem to last much longer in devices than a good ole NiMh battery in devices like 2 way radios or GPS units. If they'll keep from self discharging better than NiMh then they might be worth it, but haven't tested that yet.
And IMO, neither compares to disposable lithiums for battery life, but the disposables do quickly add up in price.
The other drawback is than none of my chargers recognize them so I had to get a proprietary charger.
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Maybe someone here can enlighten...why are these rechargeable lithium batts rated in MwH when other lithium like 26650 and 18650 are rated in MaH? Amd how do you compare MwH to MaH?Comment
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Thy this: https://www.batteryjunction.com/feni...RoCM_YQAvD_BwE
The 16340 is interchangeable with the CR or DL 123 batteries, but be careful as they do not last as long, and may put up a bit higher voltage. I have one light that will only run these and not the 123's. Other lights may have an issue with the higher voltage, so ymmv."You can have peace. Or you can have freedom. Don't ever count on having both at once."
Robert A. Heinlein
NRA Life MemberComment
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A "mWh"includes the voltage in the calculation, why "mAh" does not (it's assumed based on the standard voltage of the particular battery type). mWh is the better number to use when trying to compare energy capacity, kind of like the size of a gas tank. You can calculate the mWh of 18650 lithium-ion batteries by multiplying the mAh by 3.7 (that's the standard voltage of those types). There are some LiFePO4 types and for those you would multiply by 3.2.Comment
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Let us not pray to be sheltered from dangers but to be fearless when facing them. - Rabindranath Tagore
A mind all logic is like a knife all blade. It makes the hand bleed that uses it. - Rabindranath Tagore
Talent hits a target no one else can hit. Genius hits a target no one else can see. - Arthur SchopenhaurComment
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Wow, those aren't even really batteries.... It's a usb power bank in the shape of a D-cell. Lithium can't produce 1.5 volts. They should print "anti-gravity-battery" on the side too...Calguns Lurker
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10 watts hours might be possible since running at such a low voltage. Assuming the battery pack runs internally at 4.2 volts, that puts it in roughly the 2000mAh range. Of course the buck circuit to drop the voltage from 4.2 to 1.5 may be as low as 60% efficient so you might get 1 amp out...Calguns LurkerComment
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Of course the real question, is why. You can get D-cell NiMH with 10 times the capacity for half the price on the same website...Calguns LurkerComment
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Yes, and when you convert 10,000 mAh to mWh, it's 12,000. NiMH batteries use a standard voltage of 1.2V.Comment
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I bought some of the AA one a few months ago to check them out. They seem to be fine other than having a lower storage rating. They run Blink cameras that normal rechargeables won't run.Comment
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I was wondering how you get 1.5 volts out of a 4.2 volt lithium ion battery.Let us not pray to be sheltered from dangers but to be fearless when facing them. - Rabindranath Tagore
A mind all logic is like a knife all blade. It makes the hand bleed that uses it. - Rabindranath Tagore
Talent hits a target no one else can hit. Genius hits a target no one else can see. - Arthur SchopenhaurComment
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