Eneloops and my LD10

[grezuki]

My LD10 with an eneloop recently displayed this behavior:
with head loosened, either it would turn on at what I thought might be low, but the first soft press turned it off, or, it just wouldn't come on at all.

Figuring I had a low battery, I popped a new one in and it worked fine.

My question is, even with a weak eneloop, shouldn't it at least have turned on consistently in low mode?

 

[PeaceOfMind]

I've had this same issue with various NiMH batteries in my LD10.
I just figured that when the voltage got too low, the control chip/microprocessor/whatever wasn't turning on consistently

I've never seen it with fresh batteries, but it is annoying since it means that you sometimes can't use up the battery for all its worth. I think I've read about others having this issue as well on here.

 

[Marduke]

Since when is a light not functioning on dead batteries an "issue"? :thinking:

Running a light on rechargeables to the point where it absolutely refuses to turn on is bad for the cells anyhow.

My LD10 with an eneloop recently displayed this behavior:
with head loosened, either it would turn on at what I thought might be low, but the first soft press turned it off, or, it just wouldn't come on at all.

Figuring I had a low battery, I popped a new one in and it worked fine.

My question is, even with a weak eneloop, shouldn't it at least have turned on consistently in low mode?

It did turn on in low, but once on the voltage sagged enough to be below the startup voltage so when you soft pressed for medium, the cell was too dead to fire the circuit.

 

[clintb]

As PeaceOfMind alluded, it does have a microprocessor, and as such needs some current for it to even be "alive", so to speak. Get below what it needs, well, forget it.