I don’t know if anyone had said it but, welcome to BLF.
Marc
Me too 
thank you
as a Purchasing Agent i have a different way of looking at things and i know that it can ruffle some feathers
i did my testing with brand new Sanyo NCR18650BF
to start with all of the NCR18650BF have a charge of 3.66v
i am doing a long “NORM” test of the cells if i understand the ENGRISH instructions this mode charges discharges and then charges to give me the full mAh rating (i know that Li-ion do not need to be conditioned RIGHT??)
it also have a “FAST” testing mode
i am doing
1 300mAh 15mR 1 500mAh 16mR
1 700mAh 16mR 1 1000mAh 17mR & at 4.00v the mR was 15 it went from 3.66v - 4.24v in 1:40min and now its discharging
all 4 together are pulling only 16w on my power meter (seems like not a lot 2 cells in my i4 use 10w
OH and all the NCR18650BF have a mR (internal resistance aka iR) of 15-17
the charger and the 1000mAh 700mAh cells get warm but so does my Nitecore i4
so far the only thing i really do not like is that the Liitokala lii-500 charger while its got a great BIG screen it can only display info on 1 battery at a time there is no indication that bank #2 is done if its displaying another bank
thank you
poster
their site seems broken cannot search cannot make account
if you can handle 8pcs here is a better deal
6.75 each is a dollar more.
the sale just ended they were $5.40 each
to each there own i prefer the NCR18650BF and get those for ~$3.86 for 20pcs
BTW the NCR18650BF are better then the NCR18650B
Robert.jones from Italy shilling for soondeal :D?
I doubt he's from Italy, but most of his posts are obvious soondeal spam.
He has a total of 11 posts, and 6 of them are unpublished (deleted).
Not a very good record. ;)
You can also get 3xNCR18650BF inside xiaomi 10000mah powerbank which after 10% off using Banggood mobile app costs only 10,8$. That is If you dont mind the extra aluminium casing, quality USB charging/discharging circuit and breaking apart solder tabs.
My 3400mAh Panasonics NCR18650B batteries (8 of them) arrived yesterday, first thing I did is charge them at 200mAh, with my Opus BT-C3100 v2.2
They charged up to 4.18V or 4.19V and each battery only took in 2000mAh of power.
Could the batteries already been somewhat charged from the factory?
Or do they need to be discharged and recharged a few times to be able to hold 3400mAh?
Normally batteries are shipped at storage voltage of around 3.6 to 3.9 voltage.
You need to run charge and discharge test on your Opus charger
Usually they are kind of precharged. It should not be necessary to cycle them.
Are these still the best 18650 you can buy?
No.
In terms of capacity there are 3600mAh capacity batteries available (Panasonic as well), although hardly for consumers. There are 3500mAh cells available (LG 18650MJ1).
For high drain batteries the NCR18650 where never the best in town.
But they are getting cheaper, so I still buy these.
NCR18650B are outdated. The have been succeded by NCR18650BF.
NCR18650GA, LG INR18650 MJ1 and Samsung INR18650-35E are currently the ‘best’ batteries.
All 3 are usually offered as ‘3500mAh’ cells.
GA and 35E are specified as 3450mAh ‘typical’ capacity, 3350mAh minimum.
MJ1 and are rated 3500mAh typical and 3400mAh minimum.
In reality, we can excpect them to be closer to minimum than to ‘typical’.
I was able to order 8 of them (NCR18650B 3400mAh button top) for $35.50, from Gearbest.
Shipping took almost a month.
So I’ll let you judge if they are a good deal.
Any suggestions for the best deal on high discharge 18650s?
