Old 04-16-2016, 04:59 AM #17
InfinitusEquitas's Avatar
Class 4 Laser
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,019
Rep Power: 63339
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
InfinitusEquitas InfinitusEquitas is online now
Class 4 Laser
InfinitusEquitas's Avatar
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,019
Rep Power: 63339
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
Default Re: 16340 VS 18650 battery

Not quite, while in principal they are the same, the 18650s have always gotten the most attention and development from manufacturers.


InfinitusEquitas is online now   Reply With Quote


















Old 04-17-2016, 02:05 AM #18
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,623
Rep Power: 210024
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is offline
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,623
Rep Power: 210024
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: 16340 VS 18650 battery

Quote:
Originally Posted by OVNI View Post
The capacity specified in mAH is generally used to estimate runtime. Using two 16340 in series means runtime is still based on 650mAH but driving something @ 7.4V as opposed to using one 18650 rated at 3000mAH driving something else @ 3.7V . That is, the 18650 will 'run' roughly 4.5x longer than two 16340s.
That would depend entirely on the design of the power supply/driver.

For something like a green or blue you would need a boost supply to run from a single cell, but a buck from two cells in series. With the correct driver the difference should not be that large really, although there are so many crappy cells on the market it is difficult to demonstrate this by now.

The 18650 cells were widely used in laptops until a few years ago, and some really good ones were on the market intended for that purpose.

Considering many laptops nowadays are too thin to house battery packs based on 18650s i predict this form factor will die out rather quickly, and only remain as something to use in flashlights, laser pointers and the odd powerbank. Sadly this will probably attract sub-par manufacturers even more, and we end up with 18650 cells that have perhaps 2 Ah capacity on a good day when the label claims 4.

Overstating the capacity grossly like that will attract attention in mainstream items like laptops, but probably not so much for loose cells sold on ebay or ali.
Benm is offline   Reply With Quote
Reply

Tags
16340, 18650, battery





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


LinkBacks (?)
LinkBack to this Thread: https://laserpointerforums.com/f67/16340-vs-18650-battery-66366.html
Posted By For Type Date
16340 Vs Cr123a 2015 | Tone Hair and Body 2015 This thread Refback 10-17-2015 05:00 PM
























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 06:54 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC