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 08-01-2010, 05:41 AM #1
Class 1 Laser
 
Join Date: Dec 2008
Posts: 70
Rep Power: 9
trinity_2200 is on a distinguished road
trinity_2200 trinity_2200 is offline
Class 1 Laser
 
Join Date: Dec 2008
Posts: 70
Rep Power: 9
trinity_2200 is on a distinguished road
Default Something wrong with my batteries?

My 445 laser start to blink about 10 mins of usage after the battery is fully charged. I guess this indicates the voltage of the battery has drop below the threshold of the driver. Is it normal for a 18650 battery?

How much current does the driver draw from the battery? I'm using microboost set @1A.

I have 2 18650, both of they behave like that ....


trinity_2200 is offline   Reply With Quote







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







Old 08-16-2010, 11:18 AM #2
millirad's Avatar
Class 3B Laser
 
Join Date: Apr 2009
Location: No. California
Posts: 2,576
Rep Power: 297
millirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond repute
millirad millirad is offline
Class 3B Laser
millirad's Avatar
 
Join Date: Apr 2009
Location: No. California
Posts: 2,576
Rep Power: 297
millirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond reputemillirad has a reputation beyond repute
Default Re: Something wrong with my batteries?

You are on the wrong forum. This is not for automotive help. Lasers only!
__________________
Greenie - 100mw in diy aluminum host
650nm - 260mw in MXDL host with brass heatsink
650nm - 325mw in stainless Raygun host. The dot is so bright it's
PINK/ORANGE!
Thanks Jay! Thanks Drew! Thanks Larry! Thanks Glenn! Thanks Dave!

Pink - 500mW (white w/red , ok not till later)
Please don't dazzle aircraft! You wouldn't hit someone in the face normally would you?
Home of the stainless RAYGUN !
millirad is offline   Reply With Quote
Old 08-16-2010, 04:14 PM #3
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: Something wrong with my batteries?

1A 4.5V out is 4.5W out.
4.5W in is 4.2V at 1.08A.
Add inefficiencies and you may be drawing as much as 1.3A from the 18650. A new 18650 (of reputable quality) will have no problem with 1.3A, but an older one that has been cycled a few thousand times will not perform so well.

How new are your 18650s, and did you harvest them or buy them new? They aren't ____fire cells, are they?
BShanahan14rulz is offline   Reply With Quote
Old 08-18-2010, 01:45 AM #4
jmgallego's Avatar
Class 2 Laser
 
Join Date: Apr 2008
Location: San Diego, CA
Posts: 369
Rep Power: 2187
jmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond repute
jmgallego jmgallego is offline
Class 2 Laser
jmgallego's Avatar
 
Join Date: Apr 2008
Location: San Diego, CA
Posts: 369
Rep Power: 2187
jmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond reputejmgallego has a reputation beyond repute
Default Re: Something wrong with my batteries?

Quote:
Originally Posted by millirad View Post
You are on the wrong forum. This is not for automotive help. Lasers only!
The post is in the right forum: "Drivers, Test-load, Power Supply, & Batteries"

Quote:
Originally Posted by trinity_2200 View Post
My 445 laser start to blink about 10 mins of usage after the battery is fully charged...
Trinity_2200: what driver are you using? Sounds to me that it maybe overheating and blinking as it shutdowns, cools down, turns on, heats up, shutdowns, cools down, turn on... a blinking cycle.
__________________
Building Laser Pointers Using the 445nm Laser Diodes
Diode Lasers:
405nm: 15 and 35mW built, PHR 405nm, 100mW, Dagin's Dorcy built ~200mW
445nm: Built ~3W and Jayrob Built - 445nm <1W
532nm: 70mW and ~200mW
635/650nm: 200mW, and several builds
Gas Lasers:
337nm: Nitrogen (N2) laser, 3mW, 175uJ/pulse, peak @ 30kW and a 6mW, 260uJ/pulse, peak @ 75kW
632nm: Melles Griot HeNe, 0.5, 1. 0 5 0 and 15. 0mW
Dye Laser(s):

380-~1000nm: Different laser dyes, different wavelenghts, different laser powers.

Crystal Laser:
Holmium YAG (Ho:YAG) laser, 2.1 μm, 53W

Assorted laser accessories, including LPM, optics, and a holography table.
jmgallego 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 05:37 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