old4570
Flashlight Enthusiast
Sent to me for testing by Callie's Kustoms
Battery has protection circuit
Length is 68.9mm
Diameter is 18.5mm @ widest point .
Now these Batteries are built on the Panasonic 3100 cell , which is the latest release from Panasonic and they are 4.2v , and can be discharged down to 2.5v . A lot of flashlights will not be able to take advantage of this lower voltage capability as they have built in discharge protection @ 3v . But for a few lucky people , who may have buck boost low voltage drop ins , like the Solarforce 0.8v - 4.2v , will have the ability to suck these batteries dry .
Discharging the battery in my Imax B6 @ 0.5A , I got some 2700mAh from 4.2v to 3v , and some
2919mAh when discharged all the way down to 2.5v @ 0.5A . I did use the Nimh setting as it allows a much larger voltage variation for discharge , for the , to 2.5v discharge .
For comparison :
Hi-max 2600 = 2379mAh @ 0.5A to 3v
Xtar 2600 = 2448mAh @ 0.5A to 3v
Samsung 28A = 2488mAh @ 0.5A to 3v
Sanyo 2600 = 2433mAh @ 0.5A to 3v
The last graph is the run time test in my MTE SSC P7 , and please take note that after 120minutes I have gone in 10 minute steps rather than 5 minute steps .
The other batteries begin to fall of around the 60 minute mark and seriously lose power , while the Callie's Kustoms 18650 continues to deliver power . Now the CK 18650 still has good reserves of power even with the voltage dropping of and running Direct Drive [ Which the MTE is ] , means that Voltage plays a large roll in output . For those folks running Buck boost or regulated lights [ Light maintains a steady output as long as possible ] will see much better gains from running a high capacity battery than those folks running Direct Drive .
Who would benefit from a CK 18650 , well just about anyone , but I can see a real purpose for this battery with anyone requiring light for as long as possible , Police , Search and Rescue , Med Techs , etc . When lives are on the line those 30 or more extra minutes of run time , could be the difference in some ones life . Who said ? what is your life worth ?
If we average out the run time for the other batteries at 80 minutes , the Callie's Kustoms 18650 [ in this light ] takes you to 140 minutes , that's a gain of some 60 minutes over 80 minutes , and in my book , that's one hell of a gain . And if you look at the discharge test [ Current with various lights ] , you can see the CK 18650 compares well to the other batteries I have tested recently .
Thank you Calie's Kustoms for allowing me to test your battery ,
old4570
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