blue light stays on?

[ill_dawg]

I had the same problem with one of my supermini batteries. I flushed it with rubbing alcohol, blew it out with compressed air, and let it dry overnight. Seems to have solved the problem. It's definitely a problem with theswitch, I think in my case it was caused by liquid getting at the switch due to overfilling it and leaving it on its side while I wasn't using it. I've started standing it up on its end while it's not in use.

[Spikey]

I had it happen on my 901... but unscrewing the battery has worked for me also.

There also seems to be a pressure point on some of the batteries for diff models where if they are squeezed in a certain spot it turns the LED on (even when they are NOT attached to an atomizer!). Weird and freaky

Steve at PureSmoker also said that it seems the batteries do weird things if you drip a lot (directly on atomizer) and flood the atomizer because you get e-liquid in your battery and it is not meant to be wet!

[corbin]

So I just got my rn4072 and my dse901 and I noticed that on the rn4072 with one of my batteries the light will stay lit after I take a hit... same thing is happening with one of my dse901 batteries... are they defective I don’t drip smoke if that helps. The other batteries work fine is there anything I can do to fix this or are they defective and I need to send them back? Please let me know.
~Corbin~

[kgonepostl]

The sensor switches are retarded
I'm a huge fan of the original pressure switches

[xxJRockxx]

So I just got my rn4072 and my dse901 and I noticed that on the rn4072 with one of my batteries the light will stay lit after I take a hit... same thing is happening with one of my dse901 batteries... are they defective I don’t drip smoke if that helps. The other batteries work fine is there anything I can do to fix this or are they defective and I need to send them back? Please let me know.
~Corbin~

On my first set of 901's I had this problem and could not fix it. Recently, on a different set the sensor was so sensitive it would turn on simply by touching the battery. I tried the paperclip in the battery hole (gently) technique and it fixed it immediately. I never tried that on my first set because I sent them back right away....

[Hellen A. Handbasket]

I'm glad you posted today and bumped this up... I can't believe I haven't read about this on a post yet. I had a battery that fried an atomizer because it would just stay on. I gave up on it, put a sticker on it that said DOA.

Just used a paperclip on it. Wala... one more RN4072 battery to add to the stock pile!

I have a couple of other ones that blink all the time. Wonder if that would help them work better?

[seminolewind]

One of my batteries, maybe it's the one that never seems to charge up, never get a green light. I used it tonight, and it didn't work after a while and the light would keep comeing on so I tried the blow in and out thing, and this really bad taste came out so I think it's best to toss it. It was about a month old. The other month old battery -the light stays on. So I'll try leaving it stand and then charge it in the morning.
At this rate I'm never going to break even with quitting analogs.