Product review (1 stars): Shorted a battery and potential fire risk?
It didn't work.  When I took out the batteries, one was very very hot.  I suspect I got a defective one.  I asked about return but the seller asked about timing of the problem relatively to when i bought it (it had been a while) and I explained it was the first time.  Haven't heard back.  Regardless, I can't recommend something that could have caught fire.