Got A New Flashlight...
- Thread starter Warstud
- Start date
My only charger that can analyze Li-Ion cells is the Liitokala Lii-500.
I also have an Opus charger, but that one can only analyze NiMH cells.
My third one is a Miboxer C4-12. Nice and fast (4x 3A), but it cannot analyze.
If I needed an analyzing charger right now, I'd be looking at that Vapcell S4+, although I haven't really been up to speed on this stuff lately - there may be some other new ones that I haven't heard of.
For what purpose? Just for fun, or would you send them back if they didn’t meet spec?
Both.
Thanks.
It's a Shame that HJK style reviews, are not available for ALL types of products.
I am visiting with the 'rents at the moment, and one of the 3 PeetPen L21s I ordered, was gifted to dad. It has not seen much use, he claims, and tonight, when the post dinner conversation turned political, I went outside with my dog, and the ball of her choice, taking my easily accessible dads' PP L21, and was dismayed to find with little use, that it was flashing 3 times and shutting off.
I just asked him if he had been using it a lot, he claimed no. Pretty sure I had gifted it, ~ 3 weeks ago, after fully charging it, which leads me to believe it has a significant parasitic load on it when just sitting there. I got it charging through my USB meter now having taken 298 mah so far taking 660 ma with the Peetpen '1800mah' battery within
I was looking at an Xtar 2 bay charger capable of fitting 21700's, a new version recently released, but tabled such a purchase, for now.
It's a Shame that HJK style reviews, are not available for ALL types of products.
I am visiting with the 'rents at the moment, and one of the 3 PeetPen L21s I ordered, was gifted to dad. It has not seen much use, he claims, and tonight, when the post dinner conversation turned political, I went outside with my dog, and the ball of her choice, taking my easily accessible dads' PP L21, and was dismayed to find with little use, that it was flashing 3 times and shutting off.
I just asked him if he had been using it a lot, he claimed no. Pretty sure I had gifted it, ~ 3 weeks ago, after fully charging it, which leads me to believe it has a significant parasitic load on it when just sitting there. I got it charging through my USB meter now having taken 298 mah so far taking 660 ma with the Peetpen '1800mah' battery within
I was looking at an Xtar 2 bay charger capable of fitting 21700's, a new version recently released, but tabled such a purchase, for now.
Thanks for reminding me, i forgot, that of the 3 PP L21's I ordered, one came with a cell at 3.96. on at 3.76, one at 2.07v. I foolishly did not keep track of this 2.07v cell and it could certainly be, and likely is, the one inside the light I gave my dad.
It has accepted 1220 mah at this point, but has tapered to 550ma from 660. the L21 body remains cool to touch.
I'm going to monitor this cell's self discharge, outside the L21, once the green light says OK and will likely depart for the other ocean leaving him a panasonic cell inside.
It has accepted 1220 mah at this point, but has tapered to 550ma from 660. the L21 body remains cool to touch.
I'm going to monitor this cell's self discharge, outside the L21, once the green light says OK and will likely depart for the other ocean leaving him a panasonic cell inside.
Some manufacturers are getting a bit involved with incorporating that sort of thing for a FLASHLIGHT, lmao. Where is ON and OFF when you need it to work?!? That's why I buy from reputable manufacturers that design/build quality lights that will work flawlessly every time you actually need light and don't require a crash course to figure out how to get it to work 100%.
I believe the button on mine is the one giving me all the trouble. It does not work reliably 100% of the time. Some of the button press are NOT registered.
When the PP L21 stopped charging, my USB meter registered 1815mah, but then I pulled out the battery and it measured 4.29v!
I busted out a different voltmeter and 4.279v
I busted out a third voltmeter and 4.28v.
The USB source, a Samsung phone charger rated at 2.1 amps output, was holding 5.25 volts.
Perhaps this higher USB Input voltage causes it to stop charging at higher than 4.2v.
I charged my 2 other L21's with different USB sources, without a USB meter inline and checked both battery voltage this AM. 4.21 and 4.23v respectively. Drat.
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The 9$ headlamps I linked in post 493, arrived. Hesitant to relate first impressions during daylight hours, but beam has strong hotspot.
No memory, it turns on at mid brightness and if one holds the button down it steps down 3 steps, then goes to full brightness, then if holding the button it steps down in 5 stages from max to minimum brightness. I'll take some comparative Lux readings tonight with smartphone app. The 2000 lumen claim seems dubious, at least during daylight, inside, but I expect the throw to be pretty good with that strong hotspot.
When plugged into recharge it accepted 1.23 amps with the USB source holding 4.96v.
The end of the light with the button unscrews with a high pitch thread to expose the microUSB charge port. Of the two lights i ordered one of them could use some lube on these dry threads. There is a very tight spot and the seat when fully seated against the O ring is not confidence inspiring as to waterproofedness.
Just took the light off the charger. I did not measure battery voltage on arrival, but the battery, which claims 2000mah capacity, took 798mah till it stopped charging, and now measures 4.23v.
I want to get another USB meter, or two.
I busted out a different voltmeter and 4.279v
I busted out a third voltmeter and 4.28v.
The USB source, a Samsung phone charger rated at 2.1 amps output, was holding 5.25 volts.
Perhaps this higher USB Input voltage causes it to stop charging at higher than 4.2v.
I charged my 2 other L21's with different USB sources, without a USB meter inline and checked both battery voltage this AM. 4.21 and 4.23v respectively. Drat.
--------
The 9$ headlamps I linked in post 493, arrived. Hesitant to relate first impressions during daylight hours, but beam has strong hotspot.
No memory, it turns on at mid brightness and if one holds the button down it steps down 3 steps, then goes to full brightness, then if holding the button it steps down in 5 stages from max to minimum brightness. I'll take some comparative Lux readings tonight with smartphone app. The 2000 lumen claim seems dubious, at least during daylight, inside, but I expect the throw to be pretty good with that strong hotspot.
When plugged into recharge it accepted 1.23 amps with the USB source holding 4.96v.
The end of the light with the button unscrews with a high pitch thread to expose the microUSB charge port. Of the two lights i ordered one of them could use some lube on these dry threads. There is a very tight spot and the seat when fully seated against the O ring is not confidence inspiring as to waterproofedness.
Just took the light off the charger. I did not measure battery voltage on arrival, but the battery, which claims 2000mah capacity, took 798mah till it stopped charging, and now measures 4.23v.
I want to get another USB meter, or two.
Id estimate the 9$ headlamp is within 100k of the Peetpen L21 color. They are very close.
Kind of eager to seen its throw, come dark thirty.
Second unit finished at 4.21v, took 914mah.
Kind of eager to seen its throw, come dark thirty.
Second unit finished at 4.21v, took 914mah.
The Sofirn SC21 2700 K version is on sale for $29.99 on Amazon right now (5000K version is $34.99).
I picked one up, and really like the color temperature of the light.
I played with the LUX app on my Phone, and compared the Pricey Armytek C2Pro max warm( 4000k) , to the 9.19$ Peetpen L21 and the 9$ RantiZon headlamp.
Aimed at the white popcorn ceiling with phone flat on the table, light reflector at the same height as smart phone.
This test favors the narrower output of the Peetpen and Rantizon. Raising all three towards the ceiling does not appreciably raise the measured Lux on peetpen or Rantizon, but does with Armytek, but the numbers below represent all lights at the same distance from popcorn ceiling
The Armytek C2 promax warm:
Turbo 2........ 155 lux, claimed 3720 lumens
Turbo 1........ 49 Lux, claimed 1320 lumens
high.............. 16 lux, claimed 440 lumens
med................ 5 lux, claimed 140 lumens
low.................. 1 lux, claimed 30 lumens
The Peetpen L21 handheld light. No claimed lumen output.
High....... 24Lux
Medium..9 lux
Low...........1 Lux
The Rantizon headlamp.
Highest................. 39 lux
Medium high......21 lux
Medium................10 lux
medium low........5 lux
Low.........................1 lux
The 2 for 10$ cheapo headlamps measure 1 lux on the reflector LED , and 0 lux on the COB.
Outside, the Rantizon wins the throw competition. The Peetpen's smaller distant hotspot is slightly brighter, but the wider distant rantizon hotspot is is 85% of the Peetpen, but the wider rantizon spill outside the hotspot is 2x as bright as that of the Peetpen, to my eye.
For 9$, now 10$, the Rantizon is the best bang for the buck flashlight I own, by a considerable margin. Put a 3400 Mah battery within, for the win. It is ever so slightly cooler color than the Peetpen, and neither would I put int the Blue tint, like the cheapo 2 for 10$ light.
https://www.amazon.com/Rantizon-Headlamp-Rechargeable-Hands-Free-Flashlight/dp/B08Q7G8S31
The 100+$ Armytek' Wizard C2 promax warm very wide floody even output on turbo 1 or 2 would be awesome, for others standing behind me to see anything in front of me, but in terms of distance throw for the wearer of this headlamp, the 10$ Rantizon wins, easily.
In terms of Which i will likely choose for nighttime dog walking, the 10$ Rantizon headlamp output is the leader, but the Sofirn HS40 I do no yet have in my possession, could beat it.
But one huge factor in nighttime dog walking, is I like how thee Armytek body can be positioned low on forehead to block both sides of oncoming car headlamps from my eyeballs. The Rantizon smaller body is not as effective at this. Those who decide to blast me and my dog with their high beams, the Armytek could likely reciprocate the obnoxiousness most effectively, especially on strobe.
Aimed at the white popcorn ceiling with phone flat on the table, light reflector at the same height as smart phone.
This test favors the narrower output of the Peetpen and Rantizon. Raising all three towards the ceiling does not appreciably raise the measured Lux on peetpen or Rantizon, but does with Armytek, but the numbers below represent all lights at the same distance from popcorn ceiling
The Armytek C2 promax warm:
Turbo 2........ 155 lux, claimed 3720 lumens
Turbo 1........ 49 Lux, claimed 1320 lumens
high.............. 16 lux, claimed 440 lumens
med................ 5 lux, claimed 140 lumens
low.................. 1 lux, claimed 30 lumens
The Peetpen L21 handheld light. No claimed lumen output.
High....... 24Lux
Medium..9 lux
Low...........1 Lux
The Rantizon headlamp.
Highest................. 39 lux
Medium high......21 lux
Medium................10 lux
medium low........5 lux
Low.........................1 lux
The 2 for 10$ cheapo headlamps measure 1 lux on the reflector LED , and 0 lux on the COB.
Outside, the Rantizon wins the throw competition. The Peetpen's smaller distant hotspot is slightly brighter, but the wider distant rantizon hotspot is is 85% of the Peetpen, but the wider rantizon spill outside the hotspot is 2x as bright as that of the Peetpen, to my eye.
For 9$, now 10$, the Rantizon is the best bang for the buck flashlight I own, by a considerable margin. Put a 3400 Mah battery within, for the win. It is ever so slightly cooler color than the Peetpen, and neither would I put int the Blue tint, like the cheapo 2 for 10$ light.
https://www.amazon.com/Rantizon-Headlamp-Rechargeable-Hands-Free-Flashlight/dp/B08Q7G8S31
The 100+$ Armytek' Wizard C2 promax warm very wide floody even output on turbo 1 or 2 would be awesome, for others standing behind me to see anything in front of me, but in terms of distance throw for the wearer of this headlamp, the 10$ Rantizon wins, easily.
In terms of Which i will likely choose for nighttime dog walking, the 10$ Rantizon headlamp output is the leader, but the Sofirn HS40 I do no yet have in my possession, could beat it.
But one huge factor in nighttime dog walking, is I like how thee Armytek body can be positioned low on forehead to block both sides of oncoming car headlamps from my eyeballs. The Rantizon smaller body is not as effective at this. Those who decide to blast me and my dog with their high beams, the Armytek could likely reciprocate the obnoxiousness most effectively, especially on strobe.
Which Sofirn did you go with?
Youll like it.
Mine is probably my favorite flashlight. Compact, pocketable, extremely bright, with great flood as well as throw, good runtime, and I really like the Anduril 2 operating system. It’s really handy to be able to check batt voltage with a few clicks of the button.
I also really like the color temperature and tint of the 4 SST-20s.
I measured amp draw of My 9$ Rantizon/ Sofirn d25 clone and my 100$+ Armytek Wizard C2 promax warm last night.
I used an Extech meter inline on the clone, but found that its long leads led to so much voltage drop that would also drop the light levels and amp draw, that a 6 inch length of 18awg between headlamp body and battery - end with my Clampmeter was far more reliable. At first I used a 3 foot 18 awg test lead and on high, it read 0.35a lower, so I shortened the loop to 6 inches of 18 awg, and this still, no doubt drops the voltage reaching driver more than if the tailcap were screwed on.
The Rantizon / sofirn d25 clone, with fully charged Olight 3000mah 18650 'high drain' battery installed
highest: 2.47 amps
Medhigh: 1.09 amps
Medium: 0.72 amps
Medlow 0.31 amps
Low, 0.13 amps
The Armytek Wizard C2 Promax with ~80% charged provided 21700 5000mah battery
Turbo2 9.33 amps
Turbo1 2.0 amps
high 0.67 amps
medium 0.20 amps
low 0.09 amps
I do not have the equipment to measure ow much the cell voltage drops when providing the amperage measured, to the driver
My previous post, I took some comparitive Lux readings
The D25 clone on highest revealed 39 Lux in my test
The C2 promax on Turbo 1 revealed 49 lux in the same test.
The D25 on highest draws 2.47 amps, for that 39 lux
The C2promax warm on turbo 1 draws 2.0 amps, for that 49 lux
The c2pro max warm turbo 1 is rated at 1210 lumens.
Looks to be a significant difference in efficiency between the cheap d25 clone and the $$$ Armytek.
I still really like the throwy nature of the d25 clone, and for 9$, I'm glad I bought 2.
The HJK site is a goldmine of info for enthusiasts of this, and similar topics:
https://lygte-info.dk/info/Measurement UK.html
https://lygte-info.dk/info/indexArticles UK.html
I used an Extech meter inline on the clone, but found that its long leads led to so much voltage drop that would also drop the light levels and amp draw, that a 6 inch length of 18awg between headlamp body and battery - end with my Clampmeter was far more reliable. At first I used a 3 foot 18 awg test lead and on high, it read 0.35a lower, so I shortened the loop to 6 inches of 18 awg, and this still, no doubt drops the voltage reaching driver more than if the tailcap were screwed on.
The Rantizon / sofirn d25 clone, with fully charged Olight 3000mah 18650 'high drain' battery installed
highest: 2.47 amps
Medhigh: 1.09 amps
Medium: 0.72 amps
Medlow 0.31 amps
Low, 0.13 amps
The Armytek Wizard C2 Promax with ~80% charged provided 21700 5000mah battery
Turbo2 9.33 amps
Turbo1 2.0 amps
high 0.67 amps
medium 0.20 amps
low 0.09 amps
I do not have the equipment to measure ow much the cell voltage drops when providing the amperage measured, to the driver
My previous post, I took some comparitive Lux readings
The D25 clone on highest revealed 39 Lux in my test
The C2 promax on Turbo 1 revealed 49 lux in the same test.
The D25 on highest draws 2.47 amps, for that 39 lux
The C2promax warm on turbo 1 draws 2.0 amps, for that 49 lux
The c2pro max warm turbo 1 is rated at 1210 lumens.
Looks to be a significant difference in efficiency between the cheap d25 clone and the $$$ Armytek.
I still really like the throwy nature of the d25 clone, and for 9$, I'm glad I bought 2.
The HJK site is a goldmine of info for enthusiasts of this, and similar topics:
https://lygte-info.dk/info/Measurement UK.html
https://lygte-info.dk/info/indexArticles UK.html
