Phone battery dies when I weld?

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Never had this happen with any phone but I just got a warranty replacement after washing my old iphone. Been doing other things at the shop this last week so have not been welding a lot. Today and one other day I have been welding. Both days my phone dies well before my shift ends. It is just fine every other day. I do have to stand within a foot of the welder because it and I are on a man lift. I know a welder puts off a good electromagnetic field but I have never had a phone die before. Thinking my warranty phone had an electrical issue that they fixed just not all the way and maybe that makes it sensitive to the welder? Don't know not an expert on how it all works. My old iphone was just fine. Phone is locked and in a case that protects all the buttons so its not turning on. Signal is good to. Easy fix is leave it in the truck but was just curious if this happens to anyone else?
Reply:Noticed it once or twice.  Sent from my SGH-M919 using TapatalkLong after the price is forgotten, the quality will remain.Both of my Poppy's 1954 Short Hoods -Third generation to weld with it and teaching a fourthSA 2## - Bought and sold more than I can remember or care to list, 8 in the shop right now
Reply:HF start wil do that. Its blasting EMI and RFI everywhere.Welding/Fab Pics: www.UtahWeld.com
Reply:Thanks for the information. I will leave it in the truck when I have to weld. Never had a problem before but never working sitting on a welder either. They don't make a terrible chair lol.
Reply:I didn't even know there was a welding app. I could see why the battery would dies sooner. Were you using a feeder, or stick welding?
Reply:Stick. When you buy the app it comes with a connector that just plugs into the head phone jack. Insert rod...weld away lol
Reply:Cell phones modulate their output power based on how well they can talk to the cell tower. When you're in a bad coverage area - or there's interference - they start cranking up their power output trying to compensate. This really kills batteries quickly.
Reply:Originally Posted by travisdCell phones modulate their output power based on how well they can talk to the cell tower. When you're in a bad coverage area - or there's interference - they start cranking up their power output trying to compensate. This really kills batteries quickly.
Reply:Originally Posted by SuperArc+1 what travisd said.A fine visual and simplistic example of the RFI an "arc" welder produces, is to just watch any of the many arc welding videos people make on YouTube.  You'll find that even with a video camera on a tripod and several feet from the arc, the image gets distorted terribly.  Some cameras and equipment is not affected as much, but others have major interference.  Radio frequency propagation (including arc welding) can be a sudden bitch with electronics.  Think of the old timer ham radio antenna towers that negatively affected old television signals in the neighborhood when you grew up as a kid.  It's the same principle.
Reply:The bluetooth in my car used to do terrible things to my phone's battery (2.5 hrs/day commute).New phone, new battery less problem.The HF start and wild amounts of RFI from any arc will play merry-hell with any radio transeiver.Be wary of The Numbers: Figures don't lie,. but liars can figure.Welders:2008 Lincoln 140 GMAW&FCAW2012 HF 165 'toy' GTAW&SMAW1970's Cobbled together O/A