Recent content by Szemhazai

  1. Szemhazai

    Identifying a headlamp upgrade if there is one.

    I think that you are looking for E10 3-6V 3W led bub replacement: Those cane be a bit crappy - only about 150-200 lumens from 3W - but are cost effective 1,5$ per piece in a bulk. https://www.aliexpress.com/item/1005002860501813.html
  2. e10_led_bulb_ali.jpg

    e10_led_bulb_ali.jpg

  3. Szemhazai

    Petzl NAO+ battery life - am I being unreasonable?

    @sirpetr: not exactly... When I'm connecting directly I'm in "no mans land" ;). Nao have a precise voltage sense system in it's head - probably somebody was thinking about replaceable power source. It's switching to safety mode at 3,05-3,00V - so i's safe to say that it is ok for unprotected...
  4. Szemhazai

    Petzl NAO+ battery life - am I being unreasonable?

    Yep, they are compatible, but they sucks because in most cases you are using only 60% of their capacity. That's why I've posted DIY version that can be charged in the standard battery charger.
  5. Szemhazai

    Petzl NAO+ battery life - am I being unreasonable?

    The best solution is to remove everything and connect directly to the red (+) and black(-) wires that are going from the plug to the pcb.
  6. Szemhazai

    Black Diamond Spot 350 waterproof with Eneloop?

    Basically it''s only a legal precaution - in case of a hydrogen build-up during over-discharge of the cells that may cause the explosion - in water resistance (not airtight) equipment you don't have to worry about that.
  7. Szemhazai

    [Review] Nitecore HC35 Headlamp ... 2.7K+TIR+21700+USB

    @kreisl - those are great angle lights, I love them in the cellars, or under the car... They can be used as headlamps on the hard-hats, and they are quite stable. For standard usage, my answer is simple - it is not a headlamp.
  8. Szemhazai

    [Review] Nitecore HC35 Headlamp ... 2.7K+TIR+21700+USB

    The total weight for HC35 is about 210 grams (the 21700 cell itself weights around 70g).
  9. Szemhazai

    Klarus HR1 Plus 600 Lumen USB-C Rechargeable Lightweight Headlamp

    Clarus XP-G2 - outdated and low CRI :shakehead 600 lumens from 2000mAh battery for 4 hours ? :crackup: PP20 2000mAh battery pack - weight unknown :confused: Want some more ? :D Zebralight - good or even very good headlamp if you don't want to run with it :huh: For running it's like "bang...
  10. Szemhazai

    Petzl NAO - high-tech headlamp review.

    hikon2 - sorry, I don't know why but but I gave you a false information, It will use it as 3100mah but effective run-times for you will be the same. NAO 1/2/3 have fixed run-times almost independent from capacity. Only in emergency mode you will be able to use extra capacity - in other word's...
  11. Szemhazai

    Petzl NAO - high-tech headlamp review.

    If you will swap the battery itself it will most probably recognize it as 3100mAh :D.
  12. Szemhazai

    Petzl NAO - high-tech headlamp review.

    No, the battery life is well calculated + more than an hour in the safety mode. That was one of the main reasons why I start to mod it - the lamp: Petzl NAO ICR1865026 - 2600mAh - burn time 3:07 Petzl NAO NCR18650B - 3400mAh - burn time 3:10 WTF?? :devil: After that I've fond that it's using...
  13. Szemhazai

    Petzl NAO - high-tech headlamp review.

    The lamp is calculating the capacity - you can put there 4000mAh battery and still it will use 2300mah if this is the version of the battery pack that you have... That's why I've posted all information's about his headlamp - to make it more usable and user friendly.
  14. Szemhazai

    All-night run-time for Ultramarathons

    I would suggest you to use Petzl NAO+ with customized battery pack accommodating standard 18650 unprotected cells. The real life run-times for 3350mAh cells are up to 14 hours in reactive mode.
  15. Szemhazai

    Petzl NAO - high-tech headlamp review.

    I've done some modding on NAO 2 - the old leds (I don't know what that was but it was no Cree) were replaced with Samsung LH351C 5000K CRI 90+. I must say that there is no huge difference on the photos, but with naked aye it's huge if you compare those side by side. Despite the fact that modded...
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