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 > Experiments & Modifications



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



Reply
 
LinkBack Thread Tools Display Modes
Old 02-23-2010, 08:04 PM #1
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default battery charger??

is it ok to use a ddl driver to make a battery charger if i set it 50ma or so?



thanks
michael


__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote







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







Old 02-24-2010, 01:22 AM #2
mfo mfo is offline
Banned
 
Join Date: Jul 2009
Location: NYC
Posts: 3,403
Rep Power: 0
mfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these parts
mfo mfo is offline
Banned
 
Join Date: Jul 2009
Location: NYC
Posts: 3,403
Rep Power: 0
mfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these parts
Default Re: battery charger??

Quote:
Originally Posted by chipdouglas View Post
is it ok to use a ddl driver to make a battery charger if i set it 50ma or so?



thanks
michael
You also need to regulate the voltage also. Also, @ 50mA, it's going to take like 30 hours to charge the batteries depending on the capacity.
mfo is offline   Reply With Quote
Old 02-24-2010, 06:18 AM #3
spectral532's Avatar
Class 1M Laser
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
spectral532 spectral532 is offline
Class 1M Laser
spectral532's Avatar
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
Default Re: battery charger??

It depends on the the type of battery you are charging. You can use the DDL driver to trickle charge a NiMH battery. For Li-ions, you can use the LM317 in constant voltage mode to charge your batteries. Though you will need to limit the maximum current to around 0.7C.
spectral532 is offline   Reply With Quote
Old 02-24-2010, 07:06 PM #4
bob808's Avatar
Member
 
Join Date: Jan 2010
Posts: 47
Rep Power: 0
bob808 is on a distinguished road
bob808 bob808 is offline
Member
bob808's Avatar
 
Join Date: Jan 2010
Posts: 47
Rep Power: 0
bob808 is on a distinguished road
Default Re: battery charger??

I just bought 2xr123a rechargeables from AW, and I got a regulated voltage and current power supply. What shall I set it to so I can charge those Li-Ion batteries?
bob808 is offline   Reply With Quote
Old 02-24-2010, 07:55 PM #5
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: battery charger??

duelly noted on the amount of time requiered at 50 ma. thanks for the replies guys.
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 02-24-2010, 08:09 PM #6
spectral532's Avatar
Class 1M Laser
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
spectral532 spectral532 is offline
Class 1M Laser
spectral532's Avatar
 
Join Date: Sep 2009
Location: Austin/Houston, Texas
Posts: 101
Rep Power: 9
spectral532 will become famous soon enoughspectral532 will become famous soon enough
Default Re: battery charger??

Quote:
Originally Posted by bob808 View Post
I just bought 2xr123a rechargeables from AW, and I got a regulated voltage and current power supply. What shall I set it to so I can charge those Li-Ion batteries?
Set the power supply to 4.2V and the current limit to 0.7C (0.7C means 0.7xCapacity. So if your cr123a has a capacity of 900mAh, limit the current to 900 x 0.7 = 630 mA). Additionally, you will need to stick around and monitor the current near the end of the charge. When the charge current drops to around ~0.05C you will need to disconnect the batteries to prevent trickle charging. After that your Li-ions should be at full charge.
spectral532 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 09:58 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