I had the problem. Envelope was longer. Cut one coil off bottom of spring. Fixed.
Have several and mentioned the fix on another thread. Just cut a coil off spring and give it more room to make the contact.
that does not make sense to me. Are you talking about a Ti2 or some other light?
my Eneloop and my Primary are equal length
but the positive post is fatter on the Eneloop
how would cutting a spring solve that issue?
.
Exactly.
I have encountered several items that worked with alkaline but not rechargeables.
Ti2 I have many. Try it.
“Ti2 I have many. Try it.”
Ok watt the heck I’ll try it. 
The eneloop is longer. Cutting a coil lets it make contact.
The eneloop is longer. Cutting a coil lets it make contact.
When I ordered my ti2s and 3s the shipping was free. What is the shipping now?
Just cut the top coil off. ANNNNNNNDDDDDDDDD!!!..………………………….
Still doesn’t work.
Bought the 10-pak for $29.99. Shipping was $5.95.
I cut bottom coil.
I interpret the issue differently.
to me it sounds like the positive on the battery is not reaching the positive on the driver.
because the battery is on a spring, the body tube can still move forward to contact the pill… unless arow55 is correctly solving an issue with the spring being at maximum compression, preventing body tube contact to negative ring on pill. If I understand arow55 correctly, his Ti2’s did not work until he cut the spring… I dont understand, but, if it works… well… maybe worth a try before returning the 10 pack.
I think (pure guessing without evidence yet), that the issue is because the eneloop positive post is wider and is hitting one of the parts on the driver. We confirmed by photo that the component is mounted slightly closer on the Ti2, than on my Olight i3e.
btw, the reason the components are on the battery side, is because the other side has the LED mounted directly to the board, no wires. imo the intent was to make the flattest driver possible. They did succeed at that.
whether the eneloop issue is spring length or positive post width, remains unclear to me
I would speculate that chipping the insulation off the component that is too close to the brass post on the driver, could enable a Ti2 to become eneloop friendly, without cutting the spring… I dont know if chips of insulation getting broken off by the battery, is the actual reason that arow55’s lights started working… Im glad he got them to work though, either way… Im not trying to doubt the report, that spring cutting was associated with a non eneloop friendly Ti2, becoming less prejudiced against phat posts.
Try jumping the negative contact of eneloop. That should tell you something.
“Try jumping the negative contact of eneloop. That should tell you something.”……
Already did that right from the get-go when I was too lazy to pull the pill.
When I got mine all they had were black and green. The tan look nice.
Wow. All I can say is cutting a coil off the big end worked on mine. Mentioned it on a thread about ti3 deal.
“…….whether the eneloop issue is spring length or positive post width, remains unclear to me
I would speculate that chipping the insulation off the component that is too close to the brass post on the driver, could enable a Ti2 to become eneloop friendly, without cutting the spring… I dont know if chips of insulation getting broken off by the battery, is the actual reason that arow55’s lights started working… Im glad he got them to work though, either way… Im not trying to doubt the report, that spring cutting was associated with a non eneloop friendly Ti2, becoming less prejudiced against phat posts.”
Ya know, I didn’t intentionally initially chip the components corners either. That happened when I put a little extra torque rotating the head. I heard a slight ’krik!” and I thought, well Notta now it’s
really fooked up. Anyway even beyond that obscene abuse it still werks. Tough little flash!
Anywho, since I got 9 more still in their boxes I suppose I could very carefully grind off more of the component’s base and see if that’ll werk. Or I can cut off ANOTHER coil. 
Watt the heck ACT II. Off with another coil it is! 
Stay tuned. I’ll be back.
arow55 can you post a photo of the pill in one of your Ti2… Im looking to see the position of the components, and whether one of them has a corner chipped off
duh!… LOL
thanks for taking (another) one for the team
makes no difference what end of a spring you cut… move along
we already confirmed that battery lengths are the same, and that the positive post on the Eneloop is phatter than on the Primary battery
IF my hypothesis is correct
the correct fix is to create a way for the positive post on the battery, to reach the brass post on the pill
either chip away at the interfering component, or put a small magnet or solder blob on the battery positive post… or if you want to live dangerously, drop a little ball of tin foil onto the brass post on the pill, and hope it does not short to any other component… 
and then return those Stupid Lights… LOL