Sheath for Farmer and Nitecore D10

Nice little sheath - I like it!

A note about the D10 - it has a small parasitic drain on the cell even when switched off. That will drain the cell eventually.

Not a problem at all if it sees frequent use but it makes it less useful as a standby light. It must either be left partly unscrewed so that no contact is made, or stored with the cell separate.

Just a heads-up. It's still a very nice flashlight and great for frequent use.


I'm bummed to read this... I recently bought a D10 and figured it was my favorite flashlight of all time!


Stay sharp,
desmobob
 
Didn't know about the slight drain issue either......where did you find that info?

I looked up the D10's waterproof rating, IPX8, and found several answers, all fall well into my use of the light, as I don't plan on diving with it.

-IPX8 protected against submersion 1m+
-IPX8 = Water-Tight Equipment...protected against the effects of submersion; tested to 12 feet/3.6 meters for 24 hours
-IPX-8 Standard immersion is 1.5 meters for 30 minutes

edit: just found this about the drain:

Originally Posted by 4sevens:
* When the light is off, the microprocessor draws very, very little power -
between 0.1-0.4ma (0.2ma typical). For example, one 2000mah cell would
last about 416 days!


I am not too worried about this either.
 
Last edited:
Didn't know about the slight drain issue either......where did you find that info?

I looked up the D10's waterproof rating, IPX8, and found several answers, all fall well into my use of the light, as I don't plan on diving with it.

-IPX8 protected against submersion 1m+
-IPX8 = Water-Tight Equipment...protected against the effects of submersion; tested to 12 feet/3.6 meters for 24 hours
-IPX-8 Standard immersion is 1.5 meters for 30 minutes

edit: just found this about the drain:

Originally Posted by 4sevens:
* When the light is off, the microprocessor draws very, very little power -
between 0.1-0.4ma (0.2ma typical). For example, one 2000mah cell would
last about 416 days!


I am not too worried about this either.
Two things.

1. It's nice that the light is rated IPX-8, but in my experience I got water into the light from immersing it into a 6" bowl.

Because the lens is floating, and not resting on a lip, the o-ring under it rests within the threads, thus rendering the concept of the design no waterproof.

I mitigated this effect slightly by placing an o-ring around the bezel ring of my EX10, and was able to carefully submerse the light without water leakage... but operating the click switch underwater will cause water to be drawn into the cylinder due to the suction forces generated. The light can be operated as an on/off twisty underwater without significant leakage, however.

Nitecore should modify the housing in the next revision of the light, to ensure that the lens rests on a lip, wherefore an o-ring can be squeezed between the two by twisting the bezel ring closed, generating a sealed head. This is a rather simple solution to the problem, and would make the light waterproof to small depths.

2. The standby draw isn't a big concern if you're carrying the light and will be topping off the rechargeable battery rather frequently. For long-term storage simply twisting the light less than one turn into the "off" position will break contact and no standby current will be drawn.
 
Didn't know about the slight drain issue either......where did you find that info?

I looked up the D10's waterproof rating, IPX8, and found several answers, all fall well into my use of the light, as I don't plan on diving with it.

-IPX8 protected against submersion 1m+
-IPX8 = Water-Tight Equipment...protected against the effects of submersion; tested to 12 feet/3.6 meters for 24 hours
-IPX-8 Standard immersion is 1.5 meters for 30 minutes

edit: just found this about the drain:

Originally Posted by 4sevens:
* When the light is off, the microprocessor draws very, very little power -
between 0.1-0.4ma (0.2ma typical). For example, one 2000mah cell would
last about 416 days!


I am not too worried about this either.

Yep, that's it.

I found out when I was looking for lights to put into storage for emergency use, so it was very important to me.

Bear in mind that the cell will also be self-discharging; rechargeable cells are bad for this although the eneloops are a lot better than standard cells. So the 416 days will in fact be a lot less.

For long-term storage you can't beat primary (non-rechargeable) lithium cells like CR123 or the 1.5V types now common in AA size. Good alkaline cells are also better than any rechargeable, but not as good as lithium at either total capacity or longevity in storage. Lithiums also withstand cold storage better than alkaline.

Like I said, the D10 is still a great flashlight, but not for long-term storage unless precautions are taken.
 
2. The standby draw isn't a big concern if you're carrying the light and will be topping off the rechargeable battery rather frequently. For long-term storage simply twisting the light less than one turn into the "off" position will break contact and no standby current will be drawn.


That's good news... I usually unscrew it so it won't come on in my pocket or pack (which it has).

OK. It's back to being my all-time favorite flashlight. :)

Stay sharp,
desmobob
 
Yep, that's it.

I found out when I was looking for lights to put into storage for emergency use, so it was very important to me.

Bear in mind that the cell will also be self-discharging; rechargeable cells are bad for this although the eneloops are a lot better than standard cells. So the 416 days will in fact be a lot less.

For long-term storage you can't beat primary (non-rechargeable) lithium cells like CR123 or the 1.5V types now common in AA size. Good alkaline cells are also better than any rechargeable, but not as good as lithium at either total capacity or longevity in storage. Lithiums also withstand cold storage better than alkaline.

Like I said, the D10 is still a great flashlight, but not for long-term storage unless precautions are taken.

Mhm, this is one reason why I wanted to stay with cr 123's. I have a Raovac that stays in the car for the hell of it, but at times of -40 and colder, that light rutenly doesnt work. So, I've been keeping my TK10 in the car, never skipped a beat. So, Now I need another High out put light for the Pack, and a smaller EDC light, mabye a PD20?
 
Back
Top