Thermacell died

My trusty thermacell has been taking longer and longer to fire up.The other night it wouldn't start luckily I had some bug spray to keep me varmint hunting a bit longer. I bought it quite a few years ago. Heck just noticed it has thermascent printed on it instead of thermacell. Already replaced it. any of yall have a thermascent that still works?

Actually got my wife a Thermacell just the other day and she wants to take it back. Said the skeeters were still landing on her the other day out at the ranch.