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 03-30-2011, 03:37 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 Best High Current Batteries?

I am going to be making a high power flash light, hopfully in the 50-100w range.

What kind of batteries should I be looking at?
I tested my friends 18650 Ultrafire 3000mah batteries,
Hooked them up to 1.5 ohms, and they could only do 2.2 amps (Close to full charge) or ~7watts.

Would a different brand of battery be able to do 10+ Watts?

I would assume that the higher cappasity would mean the higher peak current/voltage, but mabye that is incorrect.


justinjja is offline   Reply With Quote







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







Old 03-30-2011, 03:39 AM #2
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Best High Current Batteries?

Yes -

LiFePO4 18650 Rechargeable Cell: 3.2V 1250 mAh, 21A Rate, 4.0Wh

21A x 3.2V = 67 W

Have fun melting your hand
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Old 03-30-2011, 03:40 AM #3
Flaminpyro's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Flaminpyro Flaminpyro is offline
Class 4 Laser
Flaminpyro's Avatar
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Default Re: Best High Current Batteries?

You should use 26650 cells they can deliver 10 amps
need some ?
__________________
White Fusion Time Machine 445
473nm LRS-0473-KFM-00150-10 158.5mW Lab style
laser used in the making of the latest TRON movie

CNI PGL-III-C-589 125mW
520 in a SH-032
Viasho 532nm 500mW
CNI pen 532nm 84mW
The Violet Pip Squeek 45mW

_____________________________________
LOOKING FOR A HOST WITH PERFECT HEAT SINKING
order your C-88 Cu kit today !

Flaminpyro is offline   Reply With Quote
Old 03-30-2011, 04:01 AM #4
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Best High Current Batteries?

Flaminpyro:
Do you sell batteries?

I'm dying to find an 18650 or two 16340s that can do crazy high current (like 8 or 9A)
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Old 03-30-2011, 04:02 AM #5
Prototype's Avatar
Class 3B Laser
 
Join Date: Jun 2009
Posts: 2,712
Rep Power: 107
Prototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond repute
Prototype Prototype is offline
Class 3B Laser
Prototype's Avatar
 
Join Date: Jun 2009
Posts: 2,712
Rep Power: 107
Prototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond reputePrototype has a reputation beyond repute
Default Re: Best High Current Batteries?

Get IMR cells for high current draw. A123 Systems make 26650s that can withstand 70A current draw.
__________________
Quote:
Originally Posted by MoonShad0w
No, bird, do not bite my F7 key off
Prototype is offline   Reply With Quote
Old 03-30-2011, 04:23 AM #6
Jufran88's Avatar
Class 2M Laser
 
Join Date: Feb 2011
Location: Southern California
Posts: 573
Rep Power: 81
Jufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond repute
Jufran88 Jufran88 is offline
Class 2M Laser
Jufran88's Avatar
 
Join Date: Feb 2011
Location: Southern California
Posts: 573
Rep Power: 81
Jufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond repute
Default Re: Best High Current Batteries?

I had a thread about batteries awhile back, but no one paid attention to it

Here is the link *here*

I originally got it from CPF and it compares many 18650 batteries for all specifications.

I hope this helps!
__________________
FS: 3A selectable test loads *IN STOCK* - link

405nm 455 mA BDR-S06J GUIDESMAN (G2 Drive) - link
445nm 1500 mA A140 SOLARFORCE L2 GUNMETAL (FLEXDRIVE V5) - link
445nm 1566 mA A140 SIPIK HK21 (G2 Drive) - link
473nm B&W Tek BWB-10-OEM - 10mW
532nm SKY Lasers DPL - 200mW
638nm 1071 mA GUIDESMAN (AMC7135) - link
638nm 1053 mA SS 26650 (AMC7135) - link

LED Maglite 3D DD SST-90 5700K w/ Aspheric lens - link
LED Maglite 3D XM-L U2 bin - link
LED Maglite 2D Triple XM-L U2-1C bin - link

My DIY LPM - link
Jufran88 is offline   Reply With Quote
Old 03-30-2011, 04:25 AM #7
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: Best High Current Batteries?

justinjja;

Current 2600mah Sanyo/Panasonic 18650 cells can output about 5.2 amps.

They do make some "high-current" 18650 cells that can output ~15 amps at a lower capacity. They are harder to find.

I use #26650 cells or Li-Poly for amp draws over 5 amps.

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
LarryDFW is offline   Reply With Quote
Old 03-30-2011, 04:27 AM #8
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Best High Current Batteries?

Jufran - where do you actually purchase IMRs from ?

I'd love to find some IMR 16340s or 18350s. If they had even a third of that current rate for their IMR1600 (20A), I'd be happy.

EDIT: If I may ask another question (that doesn't need precision) - If a li-ion has around 4.2V at full charge, if I was discharging at say 8A, what would you expect that voltage to actually be? 4.1? 4.0? 3.0?

I know it sags under a load - just curious (roughly) by how much.
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)


Last edited by rhd; 03-30-2011 at 04:34 AM.
rhd is offline   Reply With Quote
Old 03-30-2011, 04:33 AM #9
DTR's Avatar
DTR DTR is online now
Class 4 Laser
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
DTR DTR is online now
Class 4 Laser
DTR's Avatar
 
Join Date: Jun 2010
Location: St. Louis MO
Posts: 5,482
Rep Power: 10819
DTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond reputeDTR has a reputation beyond repute
Default Re: Best High Current Batteries?

Quote:
Originally Posted by rhd View Post
Jufran - where do you actually purchase IMRs from ?

I'd love to find some IMR 16340s or 18350s. If they had even a third of that current rate for their IMR1600 (20A), I'd be happy.


AW IMR16340 550 mAh IMR CR123 size LiMN Rechargeable Lithium Battery

AW IMR18650 1600mAh LiMN rechargeable lithium battery
DTR is online now   Reply With Quote
Old 03-30-2011, 04:34 AM #10
Jufran88's Avatar
Class 2M Laser
 
Join Date: Feb 2011
Location: Southern California
Posts: 573
Rep Power: 81
Jufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond repute
Jufran88 Jufran88 is offline
Class 2M Laser
Jufran88's Avatar
 
Join Date: Feb 2011
Location: Southern California
Posts: 573
Rep Power: 81
Jufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond reputeJufran88 has a reputation beyond repute
Default Re: Best High Current Batteries?

I think you can find some on eBay or lighthound.com. Other than that I'm not sure.
__________________
FS: 3A selectable test loads *IN STOCK* - link

405nm 455 mA BDR-S06J GUIDESMAN (G2 Drive) - link
445nm 1500 mA A140 SOLARFORCE L2 GUNMETAL (FLEXDRIVE V5) - link
445nm 1566 mA A140 SIPIK HK21 (G2 Drive) - link
473nm B&W Tek BWB-10-OEM - 10mW
532nm SKY Lasers DPL - 200mW
638nm 1071 mA GUIDESMAN (AMC7135) - link
638nm 1053 mA SS 26650 (AMC7135) - link

LED Maglite 3D DD SST-90 5700K w/ Aspheric lens - link
LED Maglite 3D XM-L U2 bin - link
LED Maglite 2D Triple XM-L U2-1C bin - link

My DIY LPM - link

Last edited by Jufran88; 03-30-2011 at 04:34 AM. Reason: lol. DTR beat me to the post.
Jufran88 is offline   Reply With Quote
Old 03-30-2011, 04:38 AM #11
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: Best High Current Batteries?

Great! Looks like this will be possible then

Quote:
So when a 26650 is at 10A what does the voltage drop to?
How about Sanyo/Panasonic 18650 cells @ 5.2 amps?
and the LiFePO4 18650 Rechargeable Cell: @ 21A?
Never mind that, I found the datasheets

Also where is a good place to buy batteries like this, Batteryspace.com?
Flaminpyro do you have some for sale?

Last edited by justinjja; 03-30-2011 at 05:24 AM.
justinjja is offline   Reply With Quote
Old 03-30-2011, 09:58 PM #12
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,142
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: 9,142
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: Best High Current Batteries?

Old-school SLA would be cheaper, easier to mount, and easier to charge. Hard to beat 95 watt-hours for $15.

UPG UB1280 - AGM Battery - Sealed Lead Acid - 12 Volt - 8 Ah Capacity - F1 Terminal | 1000Bulbs.com
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   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 10:15 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