Thanks! Just wondering if it is plausible that you’re going to get a much different value when testing with NiMH. Obviously you will because the voltage is different, but perhaps the efficiency may be of a completely different order. With 14500 it’s 777 microW (=185 x 4.2), but is this the same with NiMH? Would you be so kind to test it with NiMH as well? Thanks!
168 µA on an Eneloop.
Thanks! This means 202 microW opposed to 777 microW. Practically a fourth, which is interesting.
Good info. Thanks.
Sounds like I have a lemon. Thanks maukka.
edit:
| Type | Capacity (mAH) | drain (mAH) | Days | Months (assuming 30 days per) |
| AA NiMH | 2500 | 0.168 | 620.04 | 20.67 |
| 14500 | 800 | 0.185 | 180.18 | 6.01 |
Although your conclusion that you have a lemon is unfortunately correct, you used wrong parameters. Capacity for NiMH should be 2000 or 2500 mAh; you used a value for AAA instead of AA.
Thanks for pointing that out. And here I thought I was being clever! I’ll correct my error.
Seems pretty high on a 14500
I guess it depends on your perspective. For my purposes as an EDC light, 6 months of stand by is more than sufficient, since I use it daily and will run down the battery long before 6 months elapses.
If, on the other hand, I was putting it in a survival kit, I could see that being an issue, but then again, if it was in a survival kit, I would engage physical lock out. Furthermore, I usually check my gear more frequently than once every 6 months.
I wonder if the drain is constant regardless of voltage? The numbers seem quite close. I seem to recall there were devices that drew constant current and adjusting input voltage changed power consumption on a linear scale.
For my case, AA will drain to more than 30% after around 10 days in my drawer.
So does it have parasitic drain issues or not?
See post #24
Mine has horrible parasitic drain, but it’s not typical. I got a dud. If you look at the table I created, based on the data maukka provided on his light, using AA NiHM, the parasitic drain would take 20+ months to deplete the cell.
14500 test with thin leads - 193µA for both with or w/o e-lockout.
I got 174 µA on mine. I think this is about 6 months which is good? Only way to get not have any drain is a proper switch or unscrew the head.
Thanks guys!
LOL
| Member | Type | Capacity (mAH) | drain (mAH) | Days | Months (assuming 30 days per) |
| maukka | AA NiMH | 2500 | 0.168 | 620.04 | 20.67 |
| maukka | 14500 | 800 | 0.185 | 180.18 | 6.01 |
| everydaysurvivalgear | 4500 | 800 | 0.174 | 191.57 | 6.39 |
| freeme | 14500 | 800 | 0.193 | 172.71 | 5.76 |
| Mkduffer | AA NiMH | 2500 | 37 | 2.82 | 0.09 |
| Mkduffer | 14500 | 800 | 33 | 1.01 | 0.03 |
Well, I suppose I shouldn’t be laughing, but at least these measurements confirm what I’ve been experiencing.
WTS - Nearly new Klarus Mi7. j/k :smiling_imp:
I emailed info@klaruslight.com many times. There were 7 emails between them and I between February 12th, 2017 until March 12th, 2017. I had to email them twice before they would respond. When they did, they asked me to go back to the dealer. I explained that I had and that the dealer had offered me a $5 credit, a total joke. I shared the link to this forum, explaining the parasitic draw issue and gave them my serial number. In the very next email, 5 days later, they asked me for the serial number, which I again gave to them on March 12th. After that, they stopped corresponding with me.
Hardly what I would consider customer service. I will follow your advice and also email service@klaruslight.com. As for posting it in the forum, I felt I gave Klarus amply opportunity to make it right. When they chose to ignore me, I felt the only option I had was to resort to the forum. Furthermore, I felt I had a duty to let others know what my experience was with Klarus. I’d had bad products before. Any company can be great to deal with when all is going well. It’s how a company deals with problems that determines whether or not I’ll continue to do business with them. Frankly, there are a lot of other flashlight manufacturers out there who have not broken my trust. I’m willing to give Klarus one more chance, but the ball is now in their court. I’ve sung praise about the lights that I have purchased from Klarus and have referred many others to purchase their lights. Whether or not that continues is up to them.
Thank you for reaching out. Hopefully we can reach an accord.
Well my Mi7 has gone from bad to worse. Not only am I still dealing with the horrible parasitic drain, now the light output has gone down considerably. I don’t have a light box so I can’t check exact lumen output, but using the same battery in both my Mi7 and an Xtar WK50, I’m seeing considerably less light output from the Mi7 on high vs. the WK50. The WK50 is rated at 150 lm on high, where as the Mi7 is supposed to put out 330 lm on high. I’m guessing that if I’m lucky, I’m getting 100 lm out of the Klarus. No where near as high as it should be. For comparison, I also checked it against a Jetbeam Jet-1 Mk, which is also rated at 150 lm on high. The Jet-1 and the WK50 are comparable, whereas the Mi7 is considerable dimmer. For good measure, I compared the Mi7 to an Xtar H2, which is also rated at 330 lm on high. The Mi7 doesn’t even come close.
Personally, I think my Mi7 is rated in lemons, not lumens. Now where’s my juicer?
Now see what ya made me do??? here ya go….one lemon deserves another… :laughing:
https://budgetlightforum.com/t/-/41681/57