The absolute max capacity for an 18650 lipo is 3400mah. I own a
bunch of ultrafire brand cells. The high capacity (less than 3000
mah) cells' voltage will collapse under high load then recover.
They are poor candidates for power drills, but for low steady
discharge like a geiger counter, they should work well and are
relatively cheap if you buy them on eBay from China
On 5/27/2022 8:00 AM, Geo Dowell wrote:
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Update, Li cell 18650 on DigiKey, data sheet shows the one they
sell as 2600mAh or 2.6A/h Other sources claim far more but one
wonders it that's advertising hype.
With even 100mA current, which should be well within the 0.2C
rating, a single cell would power an?ENi/LENi/Lionel CDV-700? for
at least 26 hours continuous use.
Geo