Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Drivers, Test-load, Power Supply, & Batteries



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 05-21-2015, 08:19 AM #1
Junior Member
 
Join Date: Apr 2015
Location: Tampa, Florida
Posts: 17
Rep Power: 0
sumnerd711 is on a distinguished road
sumnerd711 sumnerd711 is offline
Junior Member
 
Join Date: Apr 2015
Location: Tampa, Florida
Posts: 17
Rep Power: 0
sumnerd711 is on a distinguished road
Default Battery maintenance/ performance

I have a question dealing with battery maintenance.

Recently ive purchased 3 or 4 laser pen/ 1 pointer from gearbest. 3 of which use aaa batteries, and the other a 16340
that i picked up from a vape shop

i also got a nitecore i2 charger from the vape shop

the use i place on the 16340, and 1 set of aaa rechargeables is light, per night

im wondering what the best way to maintain these batteries for full llongevity and power is

should i drain them near to empty and then recharge? or should i top them off every few nights as i have been.

(the batts i have now are not high quality, the triple as being duracell 1.2v nimh, and the 16430 is a trustfitre i think which i know is low quality)

bu for any battery , what should i do? thanks


__________________
Death cannot exist without life.
sumnerd711 is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 05-21-2015, 10:09 AM #2
tttonyyy's Avatar
Class 1M Laser
 
Join Date: Dec 2014
Location: Hampshire, UK
Posts: 117
Rep Power: 50
tttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond repute
tttonyyy tttonyyy is offline
Class 1M Laser
tttonyyy's Avatar
 
Join Date: Dec 2014
Location: Hampshire, UK
Posts: 117
Rep Power: 50
tttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond reputetttonyyy has a reputation beyond repute
Default Re: Battery maintenance/ performance

There is no need to cycle them, and no harm in recharging after a partial discharge. Just avoid heat and deep discharge and they will be fine.
__________________

Playing with lasers since 1997.
405nm 100mW x 2 + dead 301
445nm 1W pointer and 3W+ Nichia NDB7875 with G9 Lens
532nm 5mW, 100mW x2, "True 300mw Output" (from China, actually about 80mW)
630nm 0.5mW, 100mW + dead 301
Nitecore D4 charger and iMax B6 for tending the Lithium Ions
tttonyyy is offline   Reply With Quote
Old 05-21-2015, 01:31 PM #3
Junior Member
 
Join Date: Apr 2015
Location: Tampa, Florida
Posts: 17
Rep Power: 0
sumnerd711 is on a distinguished road
sumnerd711 sumnerd711 is offline
Junior Member
 
Join Date: Apr 2015
Location: Tampa, Florida
Posts: 17
Rep Power: 0
sumnerd711 is on a distinguished road
Default Re: Battery maintenance/ performance

thanks tony
__________________
Death cannot exist without life.
sumnerd711 is offline   Reply With Quote
Old 05-22-2015, 01:16 AM #4
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,144
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,144
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Battery maintenance/ performance

Keeping most battery chemistries between something like 30-70% charge is typically best for longevity, actually. That's how hybrid cars keep their cells so they get 10+ year life out of them. But that's not very practical for consumer grade things, as you wouldn't utilize the whole charge, and AAA cells are cheap.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 05-22-2015, 11:49 PM #5
Junior Member
 
Join Date: Apr 2015
Location: Tampa, Florida
Posts: 17
Rep Power: 0
sumnerd711 is on a distinguished road
sumnerd711 sumnerd711 is offline
Junior Member
 
Join Date: Apr 2015
Location: Tampa, Florida
Posts: 17
Rep Power: 0
sumnerd711 is on a distinguished road
Default Re: Battery maintenance/ performance

Quote:
Originally Posted by Cyparagon View Post
Keeping most battery chemistries between something like 30-70% charge is typically best for longevity, actually. That's how hybrid cars keep their cells so they get 10+ year life out of them. But that's not very practical for consumer grade things, as you wouldn't utilize the whole charge, and AAA cells are cheap.
thanks cyparagon. that makes sense. ive heard of batteries, typically cell phone ones losing life if you recharge them at the wrong time. but yes aaas are not that expensive, and the rechargable ones are a lower voltage than the other ones
__________________
Death cannot exist without life.
sumnerd711 is offline   Reply With Quote
Old 05-24-2015, 07:48 AM #6
anderp's Avatar
Junior Member
 
Join Date: May 2015
Location: Melbourne, Australia
Posts: 27
Rep Power: 0
anderp is a jewel in the roughanderp is a jewel in the roughanderp is a jewel in the rough
anderp anderp is offline
Junior Member
anderp's Avatar
 
Join Date: May 2015
Location: Melbourne, Australia
Posts: 27
Rep Power: 0
anderp is a jewel in the roughanderp is a jewel in the roughanderp is a jewel in the rough
Default Re: Battery maintenance/ performance

Quote:
Originally Posted by sumnerd711 View Post
ive heard of batteries, typically cell phone ones losing life if you recharge them at the wrong time.
You've probably heard of it, but it's 100% untrue. Lithium ion batteries have no memory effect and if they're not drained below ~20% it doesn't reaaaaally matter how you treat them.

For long term storage without use it's best to partially discharge them before storing, but if they're regularly used then there's no need for it at all.

Strictly speaking, like Cyparagon said for the absolute best lifetime you want to never go below 20% or above 80% - but that's only really important when you're trying to get a large battery pack to last upwards of ten years, not when you're dealing with a $3-5 li-ion cell.

The AAAs are NiMh, which can suffer a little if not occasionally fully drained and recharged, but they're hardly expensive and most modern cells don't really care.

The reason you hear of phones/laptops miraculously gaining battery life when they're fully drained and recharged isn't because of the battery itself, it's due to the circuitry inside these batteries that monitors the capacity of the battery and gives you a percentage and time-to-empty, often called a "fuel meter" (or more accurately a coulomb counter)

These circuits are based purely on estimating current battery capacity from previously seen discharge rates and voltage drops per mAh consumed (some really fancy math), so sometimes they get out of sync with the battery's actual capacity. If you run the (for example) laptop until the battery is actually dead (not when the meter shows 0%, but when the machine shuts entirely off due to battery protection cutting in - sometimes you'll get upwards of 30 mins of use on "0%") then leave it on the charger for 24 hours, this will recalibrate the "fuel meter" and suddenly you seem to have so much more battery life than you did before - not because you've actually got more battery capacity, but because the meter is now more accurate.

Apple, for example, recommends this process be done every 2-6 months (and actually recommends two full cycles) to maintain the calibration.

to tl;dr myself: lithium ions don't really care as long as you don't run them until the protection cuts in, and AAA NiMh largely don't care anymore either - and are cheap enough that a few years of lifetime is plenty.
__________________
405nm "1mW" ebay pointer (est. 50mW?) | 405nm BDR-209 SurvivalLasers S4 w/G2 lens | 445nm BitLasers "BitBrew" kit (~1300mW)
462nm M462 Kryton @ 1.7A (~2W) | 532nm "SDLaser.303" chinapointer (est. 80mW?) | 638nm Sanwu Pocket Series (~300mW) | 638nm Oclaro HL63133DG Kryton @ ~300mA
parts inbound for: nothing at the moment. Probably a 520 soon, and maybe a 9mm 445.
I should really buy/build an LPM... | I have several pairs of properly-approved safety goggles, and so should you! | need MOAR WAVELENGTHS

Last edited by anderp; 05-24-2015 at 07:50 AM.
anderp is offline   Reply With Quote
Reply





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











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 04:20 AM.


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