Niwalker Aurora C26 XP-L HI

LED Flashlights – General Info 26650 Flashlights
1

I bought this 1x26650 thrower from Andrew & Amanda for $42 last January (2017).

I am very pleased with the light.

However, it does have what seems like a high parasitic drain.

In one or two months of non use, the battery gets drained.

I plan on unscrewing the tailcap from now on.

Anyone else have this problem?

2

I’ve read about it: FlashLion Reviews: Niwalker Aurora C26, Prototype (Cree XP-L HI)(1x26650)
Basically within a month your battery is depleted.
A lot of Niwalkers have fairly high drain values. The MM18 (tested by the same guy) also suffers from extreme high values.

3

my light shut down and the battery read 2.9 volts or so. Does this mean that it would not deplete the battery to a dangerous level?

4

This is only the case when the light is switched on; then the low voltage protection will kick in and shut the light off. However, the problem is that there is a high parasitic drain when the light is off, and from what I’ve read, the driver is not going to shut itself/circuit off. This means that the light will keep on depleting the battery until 0 Volts when the light is off (=on the shelf not being used for a couple of weeks). This is the case if you have an unprotected cell. If you have a protected cell (don’t know if it fits), then the protection circuit of the battery should kick in.
I have little understanding of drivers and stuff, but I think this is correct.

Edit:

Here’s the issue explained with the Niwalker MM18: NIWALKER Nova MM18 (1.XM-L2 + 2.MK-R)(4x18650)(Lots of Pictures)
A problem with the MM18 is that the light requires high drain cells, therefore they are unprotected. Back then you didn’t have protected high drain cells.