Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

4000 mAh 18650??






LaZeRz

0
Joined
Feb 19, 2011
Messages
2,549
Points
63
Definitely not 4000mah. More like 2000.
 
Last edited:
Joined
Dec 6, 2008
Messages
1,581
Points
63
LeQuack;

The very best #18650 cells available today, from Samsung, Sanyo & LG are ~3000mah.

These companies have produced millions of cells in the last couple of years.

They are the industry leaders.

LarryDFW
 
Last edited:

LaZeRz

0
Joined
Feb 19, 2011
Messages
2,549
Points
63
Hey and welcome to LPF!

Btw, you should have posted a thread in the welcome section ;)
 

Fiddy

0
Joined
May 22, 2011
Messages
2,726
Points
63
lool

Rule of thumb, if its from china and its rated, halve it. Then you have a real rating :p
 
Last edited:

Johnyz

0
Joined
Jul 19, 2010
Messages
421
Points
0
It might be possible - if you discharge them at a REALLY slow rate, like 1 mA or less, you might measure them to be 4000mAh or so... Still, they will be more like 2000mAh or less when inside a laser.
 

Fiddy

0
Joined
May 22, 2011
Messages
2,726
Points
63
spot on! Not very usable at 1mAh discharge rate lool
 
Joined
Nov 28, 2010
Messages
292
Points
18
Most of those batteries are "pulled" from used battery packs ( laptops etc).

That particular model is one of the worst.

There is no 4000mAh 18650 battery in existence today.

Highest capacity available on today's market is 3100mAh made by Panasonic.

Model NCR18650A.

To give you a better picture. Even Panasonic will not release new 4000mAh model until the end of 2013.


:beer:
 

Johnyz

0
Joined
Jul 19, 2010
Messages
421
Points
0
Wait what, they pull them from battery packs then brand them as Ultrafire?!
 
Joined
Nov 28, 2010
Messages
292
Points
18
Wait what, they pull them from battery packs then brand them as Ultrafire?!

Have you ever asked yourself : How is it possible to sell them for such a low price, and still make a profit.

Even for Chinese that is too much, or should I say to low:)
 




Top