It's a coated insert to safeguard versus shorts in case you experienced problems on your battery wrap, however, you should Often inspect your batteries just before using and ensure the wrap isn’t harmed. If it is you need to rewrap it, Video Total I felt the general performance of this

A different possibility is that due to cautious handling plus a cleanse natural environment the auto switch did not are unsuccessful as early as envisioned. All those items typically finally get yourself a bit of dust in them and die (it only requires just one) but they strictly speaking don’t