Recent content by Robert_M

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  1. Robert_M

    Four Sevens Mini ML-X gen 2 run time graph

    I thought I'd share a run time graph for my new FourSevens Mini ML-X gen 2 (XM-L2). This flashlight is only 2.3" long!!! Its a great key chain light. The measured light output on a primary is about 275 Lumens after 30 seconds, so the LiFePO4 cell provides about another 70 Lumens of light output.
  2. Robert_M

    Review of / Measurement on Xtar SP2 charger

    I have two SP2 chargers. One charges to 4.20V (1A setting) and the other to 4.23V (1A setting). Depending on the accuracy of the voltmeter and the accuracy of the SP2, its not surprising that your SP2 is terminating at 4.15V which is only 0.05V low. I have a Pila charger which terminates at...
  3. Robert_M

    Issue with AW LifePO4 in series

    I use the Tenergy model 01207 charger; technical info is here. The charger spec claims 500mA charging current; however, it is actually 250mA per channel (250mA x2) which is printed on the bottom of the charger. It has two independent channels. Output is 3.65V at 250mA per channel. It typically...
  4. Robert_M

    AW protected 17670 in Streamlight Protac HL and Surefire P2X Fury Dual output?

    Re: Protected 16650 cells in Surefire P2X Fury Dual output? Bummer ... so the voltage is too low ... looks like you'll have to use LiFePO4 batteries instead. Since they're about 3.6V off the charger let them set for an hour or so until the voltage drops to about 3.4V which is really close to...
  5. Robert_M

    AW protected 17670 in Streamlight Protac HL and Surefire P2X Fury Dual output?

    Re: Protected 16650 cells in Surefire P2X Fury Dual output? Robin24k did a review on the ProTac HL here. It worked just fine with LiFePO4 cells. I don't think 17670 cells will hurt anything ... the voltage will be low, so you just need to make sure it runs on 4.2V max vs. 6.6V (2x3.3) max ok.
  6. Robert_M

    AW protected 17670 in Streamlight Protac HL and Surefire P2X Fury Dual output?

    I haven't had any problems with Tenergy LiFePO4 RCR123 cells ... I use them in my Fury these days as well. If K2 LiFePO4 cells are safe in a SureFire then I don't see why Tenergy would be bad ... they're the same chemistry. Here's another thread that may be of interest. It shows several run...
  7. Robert_M

    Surefire and Malkoff LED and RCR123 Questions

    I haven't had any problems with them in my SureFire lights. I have some run time graphs posted here.
  8. Robert_M

    AW protected 17670 in Streamlight Protac HL and Surefire P2X Fury Dual output?

    I posted some run time graphs here.
  9. Robert_M

    Sold/Expired P60 modules -warm, neutral, cool white/XRE-XPE-XPG-XML-U3 / NICHIA 92CRI PART 11

    Cree XM-L2 U2 ($40), Potting with Cu Tape, One level regulated, 2.8-6V, 3A driver, Smooth Reflector, Host: Solar Force L2T. Using one AW18650 LiCoO2 (3100mAh). Total=$40. Robert_M :paypal:
  10. Robert_M

    Malkoff MD2 with M61SHO Run Time Graphs

    Re: Help Calculating Runtime with Malkoff M61 SHO For two 1500mAh 18500 cells the run time is 103 min or 1.72 hours. So 3000mAh batteries should be about twice that or 3.43 hours.
  11. Robert_M

    Best drop in module for solarforce l2?

    I highly recommend EDC+. Their modules are optimized for a single 17670, 18650 or two CR123A cells. I have two X60L XM-L U2 Cool White modules and they have a well regulated output of about 500 Lumens from my estimates. EDC+ also offers neutral (T5) and warm (T4) as well.
  12. Robert_M

    **NEW** XTAR SP2, 2-bay Li-ion Charger

    I bought mine at Lighthound.
  13. Robert_M

    Help with upgrading an old 6P original.

    I don't, however the run time will be about twice as long if you use a 3100mAh 18650 versus a 1600mAh 17670 (just calculate the ratio of the capacities).
  14. Robert_M

    Rechargable 123's

    I don't think you'll have any problems using LiFePO4 RCR123A cells instead of Lithium CR123A cells. I use them in my Fenix PD30 and several SureFire LED flashlights without any issues.
  15. Robert_M

    Another Pila charger or try the Xtar SP2

    The SP2 is awesome. I use the 0.5A setting for my 16340 cells, 1A for 17670 and 2A for 18650. The charge time is thus about 1.5 hours, which is great when you don't won't to wait 3+ hours for recharging your batteries. However, it will probably degrade the expected life of the batteries by...
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