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 04-15-2012, 01:59 AM #1
justinjja's Avatar
Class 2M Laser
 
Join Date: Mar 2011
Location: Texas
Posts: 692
Rep Power: 52
justinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond repute
justinjja justinjja is offline
Class 2M Laser
justinjja's Avatar
 
Join Date: Mar 2011
Location: Texas
Posts: 692
Rep Power: 52
justinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond repute
Default Protected batteries...

This is probably a stupid question, but Im going to ask it anyway

Is overvoltage of the things a protected battery is protected from?

What happens when you hook up 5v to a protected battery?
Will it burn out a fues? lock down until the overvoltage is resolved?
-----------

I ask these questions because I am curious about this:


Some lithium ion battery has 200 mOhm internal resistance and a max voltage of 4.2v.

So I wonder if it would be ok to charge it at 1A until the voltage was 4.4v.
Take off the 1A load and the voltage would drop to 4.2v
and the battery is fully charged, quicker than cc/cv could have charged the battery?


__________________
"V=IR It's not a suggestion it's the law"
-georg simon ohm
justinjja is offline   Reply With Quote







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







Old 04-15-2012, 08:45 AM #2
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Protected batteries...

You should never charge a Li-Ion cell to higher than 4.19V because at above that point the battery can explode and catch fire. As little as 4.21V has been reported to cause this issue.

What the protection circuit protects against, and how it accomplishes what it does, depends on the circuit used, which depends on the brand and make. Not all are the same. AFAIK there are no hard fuses though.

Safe charge current depends on the capacity of the cell. Generally 2/3C is the accepted safe maximum charge current. For example a 1000mAh cell can be charged at 666mA safely. Some cells can take as much as 0.8C charge rate with no issue at all, but if you don't know your cell's charging dynamic it is safer to use 2/3C.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 04-15-2012, 09:05 AM #3
justinjja's Avatar
Class 2M Laser
 
Join Date: Mar 2011
Location: Texas
Posts: 692
Rep Power: 52
justinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond repute
justinjja justinjja is offline
Class 2M Laser
justinjja's Avatar
 
Join Date: Mar 2011
Location: Texas
Posts: 692
Rep Power: 52
justinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond repute
Default Re: Protected batteries...

From what I have read, some of ultrafires chargers actually charge at over 4.2V to speed up charging.
__________________
"V=IR It's not a suggestion it's the law"
-georg simon ohm
justinjja is offline   Reply With Quote
Old 04-15-2012, 09:24 AM #4
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Protected batteries...

That is possible, ultrafire is utter crap. I have an Ultrafire 16340 with 790mOhm Ri (internal resistance). It came this way new, sealed in plastic.

I use a Tenergy brand dual universal Li-ion charger. Voltage is locked at 4.19V and current is limited to 600mA/channel.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert

Last edited by Sigurthr; 04-15-2012 at 01:18 PM. Reason: typo
Sigurthr is offline   Reply With Quote
Old 04-15-2012, 11:28 AM #5
piferal's Avatar
Class 3R Laser
 
Join Date: Apr 2011
Location: Andorra
Posts: 1,280
Rep Power: 184
piferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond repute
piferal piferal is offline
Class 3R Laser
piferal's Avatar
 
Join Date: Apr 2011
Location: Andorra
Posts: 1,280
Rep Power: 184
piferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond repute
Default Re: Protected batteries...

Now you have Li-Ion batteries that can be charged to 4.35V, and the Samsung ICR 18650-30A is an example of this.
piferal is offline   Reply With Quote
Old 04-16-2012, 06:27 PM #6
Hiemal's Avatar
Class 3R Laser
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 311
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Hiemal Hiemal is offline
Class 3R Laser
Hiemal's Avatar
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 311
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Default Re: Protected batteries...

Yeah, some Li-ion batteries are rather finicky about the way they're charged.

Typically the charging cycle starts by constant current, anywhere from 1/C (c is capacity of the battery) to 1 full C. So lets say we have a 1000 mAh li ion; 1 / c would be charging it at 100 mA, while 1 C would be 1000 mA.

After the constant current is done, it usually switches over to constant voltage. This usually happens around 4.00 volts. Chargers that do this are "topping" the li-ion. Chargers that don't do this will cause the voltage to drop once you take it out of the charger...

I think most chargers stick to constant current all the way up to full charge; however this doesn't really give the full 100% charge a li-ion usually needs... as said above, the voltage will drop as soon as you take it out.
__________________
formerly Le Quack


Drivers and Stuff

Superboost Driver (5.5+ amp capability) End all for Boosting!

MicroSized Boost Driver

Low Dropout Linear Driver


Any electronics related questions?

Send me a PM and I'll try my best to answer!
Hiemal is offline   Reply With Quote
Old 04-17-2012, 03:44 PM #7
BShanahan14rulz's Avatar
Class 3B Laser
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
BShanahan14rulz BShanahan14rulz is offline
Class 3B Laser
BShanahan14rulz's Avatar
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
Default Re: Protected batteries...

Every protection circuit is different. They are supposed to protect against overcharging, overdischarging, and discharging too quickly.

Charging should be at charging rate specified by manufacturer of the cell, constant current until the cell reaches 4.2V. At that point, charge at constant voltage and let the current taper off. Once the cell charging current reaches about 5% of the specified rate, the cell can be considered full.
BShanahan14rulz is offline   Reply With Quote
Old 04-17-2012, 04:36 PM #8
piferal's Avatar
Class 3R Laser
 
Join Date: Apr 2011
Location: Andorra
Posts: 1,280
Rep Power: 184
piferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond repute
piferal piferal is offline
Class 3R Laser
piferal's Avatar
 
Join Date: Apr 2011
Location: Andorra
Posts: 1,280
Rep Power: 184
piferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond reputepiferal has a reputation beyond repute
Default Re: Protected batteries...

Quote:
Originally Posted by BShanahan14rulz View Post
Every protection circuit is different. They are supposed to protect against overcharging, overdischarging, and discharging too quickly.
Yes, In general the most common protective circuits for Li-Ion battery, are for.

voltage overcharge, voltage overdischarge and overcurrent discharge.

May have more or less, or different types of protection, but the 3 mentioned above are usually the most common,
and generally implemented in almost all battery protection circuits.

But they can also have in the same circuit, these other protections.

Overcurrent protection during the charge, Short protection, etc.....
piferal is offline   Reply With Quote
Old 04-17-2012, 04:50 PM #9
Elektrotechniker's Avatar
Class 3B Laser
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Elektrotechniker Elektrotechniker is offline
Class 3B Laser
Elektrotechniker's Avatar
 
Join Date: Nov 2008
Location: Germany
Posts: 4,240
Rep Power: 409
Elektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond reputeElektrotechniker has a reputation beyond repute
Default Re: Protected batteries...

Quote:
Originally Posted by Sigurthr View Post
You should never charge a Li-Ion cell to higher than 4.19V because at above that point the battery can explode and catch fire. As little as 4.21V has been reported to cause this issue.

What the protection circuit protects against, and how it accomplishes what it does, depends on the circuit used, which depends on the brand and make. Not all are the same. AFAIK there are no hard fuses though.

Safe charge current depends on the capacity of the cell. Generally 2/3C is the accepted safe maximum charge current. For example a 1000mAh cell can be charged at 666mA safely. Some cells can take as much as 0.8C charge rate with no issue at all, but if you don't know your cell's charging dynamic it is safer to use 2/3C.
What? Really? Now that is interesting or I know too little about batteries.
Elektrotechniker is offline   Reply With Quote
Old 04-17-2012, 05:27 PM #10
justinjja's Avatar
Class 2M Laser
 
Join Date: Mar 2011
Location: Texas
Posts: 692
Rep Power: 52
justinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond repute
justinjja justinjja is offline
Class 2M Laser
justinjja's Avatar
 
Join Date: Mar 2011
Location: Texas
Posts: 692
Rep Power: 52
justinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond reputejustinjja has a reputation beyond repute
Default Re: Protected batteries...

Quote:
Originally Posted by Silvershot View Post
What? Really? Now that is interesting or I know too little about batteries.
It is probably exagerated,
but I could see it being true for a lipo,
Those things are ridiculous.
__________________
"V=IR It's not a suggestion it's the law"
-georg simon ohm
justinjja is offline   Reply With Quote
Old 04-17-2012, 05:39 PM #11
BShanahan14rulz's Avatar
Class 3B Laser
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
BShanahan14rulz BShanahan14rulz is offline
Class 3B Laser
BShanahan14rulz's Avatar
 
Join Date: Dec 2009
Posts: 3,175
Rep Power: 264
BShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond reputeBShanahan14rulz has a reputation beyond repute
Default Re: Protected batteries...

The chemistry doesn't like going above 4.2V. 4.25V is generally the extreme maximum I see referenced in datasheets.
BShanahan14rulz is offline   Reply With Quote
Old 04-17-2012, 10:18 PM #12
LarryDFW's Avatar
Class 3R Laser
 
Join Date: Dec 2008
Location: Dallas, TX
Posts: 1,577
Rep Power: 128
LarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond repute
LarryDFW LarryDFW is offline
Class 3R Laser
LarryDFW's Avatar
 
Join Date: Dec 2008
Location: Dallas, TX
Posts: 1,577
Rep Power: 128
LarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond reputeLarryDFW has a reputation beyond repute
Default Re: Protected batteries...

Quote:
Originally Posted by Sigurthr View Post
You should never charge a Li-Ion cell to higher than 4.19V because at above that point the battery can explode and catch fire. As little as 4.21V has been reported to cause this issue.
The standard charging voltage for most common lithium-ion cells is stated as:

4.20 VDC to 4.25 VDC .

Any brand name cell will work with these charging voltages.

Newer high-capacity 3000mah cells utilize a 4.35 VDC charging voltage.

LarryDFW
__________________
UV LED Lights F/S, 445nm, Blu-Rays, Red 1/2W, Green Focusables,
Link- Blu-Ray/445 Diode Test Current Levels for Long Life

Last edited by LarryDFW; 04-17-2012 at 10:19 PM.
LarryDFW is offline   Reply With Quote
Old 04-27-2012, 05:38 AM #13
Class 2 Laser
 
Join Date: Jan 2009
Posts: 282
Rep Power: 15
jasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of light
jasonck08 jasonck08 is offline
Class 2 Laser
 
Join Date: Jan 2009
Posts: 282
Rep Power: 15
jasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of lightjasonck08 is a glorious beacon of light
Default Re: Protected batteries...

Quote:
Originally Posted by LarryDFW View Post
The standard charging voltage for most common lithium-ion cells is stated as:

4.20 VDC to 4.25 VDC .LarryDFW
It should be 4.20v +/- 0.5v. Meaning anything within 4.15v - 4.25v is still within spec and is considered "acceptable" according to the industry standard for most LiCo cells. As you mentioned this doesn't apply to ALL cells, but it does apply to most cells that are not 2800 and 3000mAH cells with 4.3 and 4.35v charge specifications.

---------

To respond to the OP. All protection circuits should have overvoltage protection. This is usually set about 0.1v higher than the recommended charge voltage of the cell.

Basically the cell's protection circuit has an IC, when this IC detects over voltage, it will trigger the onboard mosfets and stop allowing energy to flow in and to further overcharge the battery. The battery must then be discharged (e.g. put in a laser or flashlight etc) before these mosfets will allow it to be charged again.

You should never rely on the protection circuit's overvoltage charging feature to terminate the charge cycle, but should instead use a proper CC/CV charge method that tapers off the current as the cell's voltage rises, then terminates the charge at ~50mA.
__________________
www.edcplus.com

Last edited by jasonck08; 04-27-2012 at 05:39 AM.
jasonck08 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 09:18 PM.


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