Welcome to Laser Pointer Forums! If you are looking for a laser you may want to check out the Laser Company Top Sites List. The link will open in a new window for your convenience.

Colorful 2018, Colorful Laser Power Meter
 Laser Pointers IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

LPF Laser Pointer Company Database (link opens new window)

08-20-2015, 10:42 AM #1
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

I've done some googling and poking around for information on the IMREN IMR 32650 3.7v 5000mAh Li-Mn and not coming up with much. Anyone know if these charge up to 4.2 VDC and whether I can use a regular Li-ion charger for them?

Would like to know your opinion of these "safe chemistry" Li-MN batteries.

Thanks!

__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

08-20-2015, 11:34 AM #2
 Banned Join Date: Feb 2015 Posts: 1,371 Rep Power: 0
Isaac Clarke
Banned

Join Date: Feb 2015
Posts: 1,371
Rep Power: 0
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

i'm not really sure about your size but i have use 18650 Li-Mn and charge them using inteli-charger I4 and it fully charge just fine.

08-20-2015, 11:37 AM #3
 Class 3B Laser Join Date: May 2013 Location: Snohomish County Washington, US Posts: 3,798 Rep Power: 102502
Pi R Squared
Class 3B Laser

Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 102502
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Quote:
 Originally Posted by Alaskan I've done some googling and poking around for information on the IMREN IMR 32650 3.7v 5000mAh Li-Mn and not coming up with much. Anyone know if these charge up to 4.2 VDC and whether I can use a regular Li-ion charger for them? Would like to know your opinion of these "safe chemistry" Li-MN batteries. Thanks!
I have 2 sizes of Li-Mn batteries, but not 32650. Yes they charge to 4.2V and you use a regular Li-Ion charger. Those may take awhile to charge unless you have a charger that can charge faster. I have an Efest LUC V4 charger with adjustable charging output, but it only holds up to a 26650, I don't remember ever seeing a charger that even fits 32650, but you should be able to use wires and magnets to connect them to a charger. If you find a charger that fits a 32650 please let us know, although I doubt I will use anything larger than 26650, my next laser will use 26650.

The Li-Mn batteries are rated for higher current than Li-Ion.

Alan
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter

___________________________________________
The light that shines twice as bright burns half as long.

08-20-2015, 04:34 PM #4
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Great, I was thinking of using them for a knife edged pointer, but three stacks of four each in parallel for 12.6 VDC (peak voltage) at 20 amp hours.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

08-20-2015, 09:34 PM #5
 Class 3B Laser Join Date: Dec 2014 Location: N.J. USA ⚡️⚡️ Posts: 3,861 Rep Power: 810594
Class 3B Laser

Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 3,861
Rep Power: 810594
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Well i only will use top brand cell Panasonics,AW,LG. I have bought Chinese cells now there all bundled up and waiting for the recycle bin. I figure why use cheaper cell in a build that you spend so much time and money on only to have something go terribly wrong or even injure yourself or someone. Just my opinion i rather have 2 good cells than 6 crappy cells any day.. Have fun be safe :-))

08-20-2015, 10:12 PM #6
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Are IMREN IMR batteries considered junk or a crappy brand,

08-20-2015, 10:14 PM #7
 Class 1M Laser Join Date: May 2014 Location: Huntsville, Alabama Posts: 128 Rep Power: 42
KrowBar
Class 1M Laser

Join Date: May 2014
Location: Huntsville, Alabama
Posts: 128
Rep Power: 42
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

No - IMREN are quality cells.

 Check out what the vape/e-cig crowd uses for high discharge cells to get a feel for what you can trust. The consensus right now seems to be that IMREN perform well in high drain applications. That being said, you will also see that they aren't the top performing high current cells either.

Last edited by KrowBar; 08-20-2015 at 10:24 PM.

08-21-2015, 12:29 AM #8
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Thanks, they sound good for my project but I'm still looking for a battery charger for these beasts.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

08-22-2015, 05:02 PM #9
 Class 3B Laser Join Date: Dec 2014 Location: N.J. USA ⚡️⚡️ Posts: 3,861 Rep Power: 810594
Class 3B Laser

Join Date: Dec 2014
Location: N.J. USA ⚡️⚡️
Posts: 3,861
Rep Power: 810594
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Hi,
I Core is a good charger great price, i have two i I 4 D chargers try them you won't be disappointed ..

08-22-2015, 06:19 PM #10
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Googled I Core, couldn't find it. Looking for a four slot 32650 Li-Mn/Li-ion charger with a display showing voltage and current as well as capacity of the battery.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

08-22-2015, 06:47 PM #11
 Class 3B Laser Join Date: May 2013 Location: Snohomish County Washington, US Posts: 3,798 Rep Power: 102502
Pi R Squared
Class 3B Laser

Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 102502
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Quote:
 Originally Posted by Alaskan Googled I Core, couldn't find it. Looking for a four slot 32650 Li-Mn/Li-ion charger with a display showing voltage and current as well as capacity of the battery.
I looked for one of those too before I bought my 3rd charger because I wanted to be sure that time that a bought a charger that can charge any size I may use in the future, but I couldn't find one.

Alan
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter

___________________________________________
The light that shines twice as bright burns half as long.

08-22-2015, 07:06 PM #12
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Closest i can find is this ThruNite model on ebay for the 32650 but only two slot, guess i can just buy two at \$35 each.

__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 08-22-2015 at 07:12 PM.

08-22-2015, 07:14 PM #13
 Class 3B Laser Join Date: May 2013 Location: Snohomish County Washington, US Posts: 3,798 Rep Power: 102502
Pi R Squared
Class 3B Laser

Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 102502
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

I was just looking on Amazon and found this:
http://www.amazon.com/TrustFire-Disp...attery+charger

Alan
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter

___________________________________________
The light that shines twice as bright burns half as long.

08-22-2015, 07:29 PM #14
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

I saw that but the all the bad news on their batteries I've seen, I dismissed it with their name on it. Perhaps their chargers are better than their batteries

Edit: One of the Amazon.com buyer reports says the third slot wouldn't work for him when two batteries were in it. I'm guessing the thing won't let the third slot function when two 32650's are in it, but will allow three for other smaller batteries. That's one solution to being unable to produce enough current for three of these big daddies together, just shut the third slot down. Either that or he has a defective unit.
__________________

Attention new brothers of the collimated light!

Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.

Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

Online calc. to determine spot intensity at different mRad's & powers: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

Build a beam expander to reduce divergence: http://tinyurl.com/BeamExpander

University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

RHD's Calc: http://lsrtools.1apps.com/RelativeBr...&useRaleigh=on

High Current Pulse Drivers: https://tinyurl.com/ya7whuk3

Last edited by Alaskan; 08-22-2015 at 07:42 PM.

08-22-2015, 08:50 PM #15
 Class 3B Laser Join Date: May 2013 Location: Snohomish County Washington, US Posts: 3,798 Rep Power: 102502
Pi R Squared
Class 3B Laser

Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 102502
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Quote:
 Originally Posted by Alaskan I saw that but the all the bad news on their batteries I've seen, I dismissed it with their name on it. Perhaps their chargers are better than their batteries Edit: One of the Amazon.com buyer reports says the third slot wouldn't work for him when two batteries were in it. I'm guessing the thing won't let the third slot function when two 32650's are in it, but will allow three for other smaller batteries. That's one solution to being unable to produce enough current for three of these big daddies together, just shut the third slot down. Either that or he has a defective unit.
Yes that doesn't surprise me, my Efest charger can charge 4 batteries but only the center 2 take 26650.

My second charger I bought is a Trustfire and it has worked fine, it's one of these: Amazon.com : Trustfire Multifunctional Universal Lithium Ion Rechargeable Battery Charger for CR123A, 16340, 14500, 10400, or 18650 : Digital Camera Battery Chargers : Camera & Photo
I don't completely agree about the quality of their batteries, Ultrafire I can verify are not very good, they have been known to put a smaller cell in some of their batteries and there has been some testing that showed them to be less than 1/3rd of the stated capacity in mAh. I have 2 pair of Trustfire that seem to perform ok but I can't properly test them to verify what the true mAh is. Some people think that anything with fire in the name is garbage, I don't think that's true, but I do think they aren't nearly as good as some other brands, you get what you pay for. I have never tried the Tangsfire or Kss Fire or any others with fire in the name, there was also one called Uranusfire but I think they were discontinued, see the 3rd post here: http://laserpointerforums.com/f57/po...e-88150-2.html many Chinese are into astrology and Uranus represents the element fire, I am sure it sounds good in Chinese but it translates poorly to English.

Alan
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter

___________________________________________
The light that shines twice as bright burns half as long.

08-23-2015, 12:22 AM #16
 Super Moderator Join Date: Jan 2014 Location: Great White Frozen North Posts: 9,263 Rep Power: 1157360
Super Moderator

Join Date: Jan 2014
Location: Great White Frozen North
Posts: 9,263
Rep Power: 1157360
Re: IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions?

Yep, it's the posts not to buy batteries with the word fire in them which scared me away, the prices are so cheap for them that also caused me to believe they are junk when i have never tried them myself.

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 LinkBacks (?) LinkBack to this Thread: https://laserpointerforums.com/f67/imren-imr-32650-3-7v-5000mah-li-mn-batteries-opinions-94774.html Posted By For Type Date IMREN IMR 32650 3.7v 5000mAh Li-Mn Batteries, opinions? This thread Refback 11-21-2015 04:49 AM

All times are GMT. The time now is 01:56 PM.

 -- DarkShadows V5 -- Responsive LPF -2562016 -- Default Style Contact Us - Laser Pointers - Archive - Top