 TrustFire TR18650, Strange noise when charging? |
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 Jan 16 2011, 07:14 PM
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#1
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 Group: Members Joined: 26-June 09 From: Bolton, UK  |
I got 2 TrustFires with my new P7 as you do... Been on one ride and now one of them is making a strange buzzing/whistling noise when charging. It charged fine (silent) the first time. It is the same in both charging slots. The other one battery is fine. Is it a duff or leaking? Bit worried about charging it as I don't want my house burning down :/
Cheers guys/girls! |
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Jan 16 2011, 07:54 PM
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#2
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 Group: Members Joined: 5-October 08 From: Worcestershire |
It always pays to be cautious with LiPo batteries.
Not had this happen to mine. I presume they are the protected type and the using a recommended charger. This should be a very safe option. Had a near miss with lipo's when I was RC racing and they were first introduced. (different to the 18650) We used adjustable techy smart chargers, but I made the mistake or recharging cells when they had just finished charging. I had just popped out to the car for something, luckily the guy on the pit bench heard the fizzing and the funky smell. General rule is never leave them charging unattended. THIS is what happens when it goes wrong. Got one of THESE soon afterwards  You should be ok, but just get another set to be on the safe side. |
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Jan 16 2011, 08:38 PM
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#3
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 Group: Members Joined: 31-October 05 From: N.Wales (Flintshire) |
Are you sure it is n't the charger?
I hear whistling / whining from my nokia phone, Hope light battery and both my trustfires. Wifey recons I'm a bit weird of hearing though 'cuz she can't hear a thing???? -------------------- Every Silver Lining Has a Cloud!
Don't trust government (I'm bitter and twisted over the CROW & NERC BILL) (Mountain biking will be next incidentally) NO, you're OK, I insist YOU go first. ... Told you it couldn't be done! |
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Jan 16 2011, 08:52 PM
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#4
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Group: Members Joined: 26-June 09 From: Bolton, UK |
QUOTE(Rod @ Jan 16 2011, 08:38 PM)  Are you sure it is n't the charger? I hear whistling / whining from my nokia phone, Hope light battery and both my trustfires. Wifey recons I'm a bit weird of hearing though 'cuz she can't hear a thing???? I "think" it is the battery itself, the pitch changes when I press or squeeze the battery. And this is why im thinking it could be duff... But I have absolutley no experience with these batteries so i'm just a bit worried. |
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Jan 17 2011, 09:05 PM
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#5
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 Group: Root Admin Joined: 28-July 04 |
Most battery charging incidents have happened with multiple cell units charged in 'dumb' chargers. What usually happens is either the incorrect charging setting is selected e.g. charge for six cells instead of five or a repeat charging cycle is run by mistake. These generally don't happen with single cell/dual cell smart chargers which are no more dangerous in my mind than your mobile phone or laptop charging. Please don't sue me if yours burns your house or shed down however.
 Given how reasonably priced these cells are if I had one that made a funny noise on charging I would consider replacing it however. 
-------------------- Get proper instruction www.mountainbikeinstruction.co.uk
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Lo-Fi Version | Time is now: 18th May 2013 - 08:29 PM |