Jerry Simon Posted June 23, 2011 Report Share Posted June 23, 2011 If your using the UltraFire 18650 batteries, I just found out they don't slowly die; they die a sudden death. After perusing the CandlePower forums, the consensus is those batteries suck, and most prefer the longer lasting TrustFire 18650 batteries. I ordered two on-line from a company in China, paid under nine bucks which includes shipping, and received by mail in less than a week. They work fine & dandy, and fit the UltraFire charger. http://www.bestofferbuy.com Quote Link to comment Share on other sites More sharing options...
John Dirks Jr Posted June 23, 2011 Report Share Posted June 23, 2011 I've got both types. Ones that die instantly without much warning and others that dim for a significant time prior to crapping out totally. I've never had either die on an inspection as long as they're charged up to begin with. I use a TK15 on the job and a TK11 around the house. I've gotten addicted to it for everything from working on the car to searching for the crab steaming pot on the basement shelves. Walking around with the beam in hand seems to have me moving in a systematic way. Gee...I wonder where I picked that up? Quote Link to comment Share on other sites More sharing options...
kurt Posted June 23, 2011 Report Share Posted June 23, 2011 My experience with UltraFire is consistent with the posts; they suck. My current experience with Tenergy batteries is much better. Quote Link to comment Share on other sites More sharing options...
Bryan Posted June 23, 2011 Report Share Posted June 23, 2011 Kurt, Where are you getting your batteries? Quote Link to comment Share on other sites More sharing options...
kurt Posted June 23, 2011 Report Share Posted June 23, 2011 Amazon. Best price I've found, except for cell phone stuff, which I get @ Cellular Factory. Quote Link to comment Share on other sites More sharing options...
caryseidner Posted June 23, 2011 Report Share Posted June 23, 2011 I've been happy with the Powerex I use in my Fenix. Hey Jerry - Wanna buy some ultrastinger bulbs? Reeeeal cheap! Quote Link to comment Share on other sites More sharing options...
Jerry Simon Posted June 23, 2011 Author Report Share Posted June 23, 2011 I've been happy with the Powerex I use in my Fenix. Hey Jerry - Wanna buy some ultrastinger bulbs? Reeeeal cheap! Still pissed, eh? Quote Link to comment Share on other sites More sharing options...
caryseidner Posted June 23, 2011 Report Share Posted June 23, 2011 I've been happy with the Powerex I use in my Fenix. Hey Jerry - Wanna buy some ultrastinger bulbs? Reeeeal cheap! Still pissed, eh? Just for backing the wrong horse my friend. Quote Link to comment Share on other sites More sharing options...
Neal Lewis Posted June 24, 2011 Report Share Posted June 24, 2011 I have several sets of Trustfire and Ultrafire; they all die suddenly. I thought that was the norm for this type of battery. Quote Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted June 24, 2011 Report Share Posted June 24, 2011 I thought that was the norm for this type of battery. Tenergy's work well for me and don't die suddenly. Quote Link to comment Share on other sites More sharing options...
Ben H Posted October 2, 2011 Report Share Posted October 2, 2011 What mAh are guys using? Quote Link to comment Share on other sites More sharing options...
kurt Posted October 2, 2011 Report Share Posted October 2, 2011 2600 Quote Link to comment Share on other sites More sharing options...
Ben H Posted October 2, 2011 Report Share Posted October 2, 2011 Thanks Kurt. Quote Link to comment Share on other sites More sharing options...
David Meiland Posted October 2, 2011 Report Share Posted October 2, 2011 Those blue ones from Amazon are the same that I have. They are quite splendid and amazingly cheap. Quote Link to comment Share on other sites More sharing options...
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