Samsung - are we just paying for the name?

[Nealh]

At less then £2 a cell the BAK 20A N18650CNP has to be a no brainer to try out and may well be on my to do list as soon or before spring I will be wanting a small 7 - 9ah 13s 2 or 3p in a bottle battery, it is a whole £1. 20 cheaper then the excellent molycel p26a. As has been mentioned the caveat will be life cycle but even if only 300 -500 they will still be good value.

 

[Nealh]

Had a Mooch on ES and found someone cycle tested the BAK N18650CK at 3a the results weren't to shabby 2.26% capacity loss after 50 cycles.

 

[billym1967]

I've got a few out with the delivery drivers, the bak 2900mah, so there getting a good test lol. I've started using 21700 a bit more because there's cases now, bit bigger but they work. But getting cells this year have been a nightmare. Last year this time 35e were dropping in price. I bought 5000 of them. No movement this year yet. I was looking at the listen,, but none in stock were I get my cells

 

[Nealh]

DLG is another China brand, ES cycle testing again at 3a showed the 3000ah cell being tested was quite poor and and 100cycles over 11% capacity was lost.

 

[wheeliepete]

Nice one Neah and Billy for keeping up with the latest cells coming on the scene. It does look as if we need to change our attitude of Chinese made cells esp. if they are starting to show decent results in trusted testing. I see Fogstar have the Molicel M35's back in stock, how do they stand up? Glad to hear you are keeping busy Billy, there have been a couple of your customers singing your praises on here recently.

 

[Nealh]

Mooch rates the M35 cell from Moli as an equal to the GA, keep the current draw at 5 - 7a max for longevity/life cycle.

 

[Nealh]

Just had a peek over at ES and the 4800mah Lishen LR2170SD a 10a cell is looking quite good and cheap to buy.
After 500 cycles at the full 10a discharge the cell loses approx. 20% capacity down to 3.3v. At a full 10a the 4800mah cell gives 3000mah which is better then the Sam 48G and the Panny 20700B.
At 10a it sags to 3.95v then the voltage decrease is pretty much linear as with any other cell.

After 100 cycles 6% loss, 200 cycles 7%, 300 cycles 12% & 400 cycles 15%.

BAK N21700CG if kept to 10a is another good performer, the 5000mah cell returning 3150mah at 10a bettering the Sam 50E3.