Peak using LiFePO4

[zemmo]

batteries in their upcoming hi-output lights. Battery size 38120P, "M" size. Anyone know of this battery? It's not tiny! No picture yet!

http://www.em-mgt.com/LED/SANDR.html

 

[gt40]

http://www.batteryspace.com/lifepo4...gerate32whwith6mscrewterminal-unapproved.aspx

Nominal Voltage Average 3.2 - 3.3 V UN Approved

Capacity

• Nominal: 10000mAh (3.8V cut-off, 1C )
• Minimum: 9800 mAh
• Energy density: 82.05 wh/kg

Standard Charging current
10 A recommended and 20A Max.. Max.Discharging current
50 Amp (Continuous discharge rate)
100 Amp ( < 30 sec Surge rate)


Dimensions (DxH)

• 38mm(1.5") x 120mm(4.7")
  • Height 120mm(4.7") isfrom end to end without 6mm male screw
• Terminal: 6 mm Female screw in both ends for connection.

I just got one to play with. Still trying to find a boost circuit though. That seems to be the issue.
​

 

[rmteo]

Here http://www.batteryspace.com/lifepo4...gerate32whwith6mscrewterminal-unapproved.aspx

 

[zemmo]

Wow! That's a pretty serious battery! 38120, is that about the size of 2 D cells? I guess it wouldn't be what 47's will use in the rumored G2 sized 2000 lumens light.

 

[kramer5150]

Yikes... that things huge. Little shorter and quite a bit fatter than 2D cells... IIRC

Curious, what does the size code "P" stand for?... cylinder with bulging contact terminals?

 

[zemmo]

Yikes... that things huge. Little shorter and quite a bit fatter than 2D cells... IIRC

Curious, what does the size code "P" stand for?... cylinder with bulging contact terminals?

No idea. The bulges make it a bit longer, though...

 

[bkumanski]

I sure hope Peak recommends a charger or integrates one into the light. I'm not really sure how this would be done, considering this is being marketed for a LE light (would suck if we needed to purchase a $120 hobby charger just to recharge a $400 light...)

 

[JohnF]

Jeez, and I though my new 26650's were large...

 

[zemmo]

Jeez, and I though my new 26650's were large...

And Peak is using 2 of them to power 3xP7's. Will this be the first HID class LED?