Trustfire chargers Blow Up?!

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Krprice84

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I haven't read through this entire thread, but as an electronic engineering tech, i can offer some insight i think. firstly, considering where the wire blew apart, it is HIGHLY unlikely that the charger had anything at all to do with the problem. It is slightly possible that, during the short circuit, the solid state chips inside of the charger *could* have been blown, but very unlikely, as the front stage is the most durable and quite likely has some form of protection circuitry to keep voltage spikes from blowing the IC's.

Having said that, I would also suggest that this was absolutely not a fault of the charger itself, and was simply a short in the cord at the exact location where it blew apart. Realistically that is the only way the cord is going to split apart, especially BOTH wires in the cord. If there was an issue in the charger that caused excess current to go to/thru the charger, then the charger itself would blow LONG before the cord would ever burn apart. Quite likely what one person above (1st page) said is exactly the case - the cord was just a cheap mass-produced piece of crap which has defective insulation and shorted out.

I would suggest that if this happens to anyone else, just replace the cord with a decent one (maybe one from a razor/shaver, or some other higher-current device, as these cords will be more likely to be of at least somewhat decent quality). The device itself is almost certainly fine, and if it DID break, you would know by it just simply not working... it wouldn't burn out or burn up a battery if it was broken, the light just wouldn't turn on at all (this is because IF the current/voltage spike, that could have occurred during the short, affected anything in the charger itself, it would just burn out the primary stage which would cause the whole thing to not function.

If you have a decent warranty, or a supplier who will replace it free of charge, then go ahead, but if you have to pay for a new one, i would suggest that you shouldn't bother wasting your money changing out a perfectly good charger... and if you do replace it, i'd be HAPPY to take it off your hands (i'll pay your shipping costs) and i'd be more than happy to test it (or if you wanted it tested but want it back, you could pay for shipping and i'd be happy to make sure it works for ya for free).
 

sailorman

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I haven't read through this entire thread, but as an electronic engineering tech, i can offer some insight i think. firstly, considering where the wire blew apart, it is HIGHLY unlikely that the charger had anything at all to do with the problem. It is slightly possible that, during the short circuit, the solid state chips inside of the charger *could* have been blown, but very unlikely, as the front stage is the most durable and quite likely has some form of protection circuitry to keep voltage spikes from blowing the IC's.

Having said that, I would also suggest that this was absolutely not a fault of the charger itself, and was simply a short in the cord at the exact location where it blew apart. Realistically that is the only way the cord is going to split apart, especially BOTH wires in the cord. If there was an issue in the charger that caused excess current to go to/thru the charger, then the charger itself would blow LONG before the cord would ever burn apart. Quite likely what one person above (1st page) said is exactly the case - the cord was just a cheap mass-produced piece of crap which has defective insulation and shorted out.

I would suggest that if this happens to anyone else, just replace the cord with a decent one (maybe one from a razor/shaver, or some other higher-current device, as these cords will be more likely to be of at least somewhat decent quality). The device itself is almost certainly fine, and if it DID break, you would know by it just simply not working... it wouldn't burn out or burn up a battery if it was broken, the light just wouldn't turn on at all (this is because IF the current/voltage spike, that could have occurred during the short, affected anything in the charger itself, it would just burn out the primary stage which would cause the whole thing to not function.

If you have a decent warranty, or a supplier who will replace it free of charge, then go ahead, but if you have to pay for a new one, i would suggest that you shouldn't bother wasting your money changing out a perfectly good charger... and if you do replace it, i'd be HAPPY to take it off your hands (i'll pay your shipping costs) and i'd be more than happy to test it (or if you wanted it tested but want it back, you could pay for shipping and i'd be happy to make sure it works for ya for free).

I've already offered to take the charger, but too late. The vendor is taking it back.

But on behalf of several other posters, and myself, who have been arguing against the hysteria surrounding this incident for a couple weeks now. THANK YOU.
 

Krprice84

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I've already offered to take the charger, but too late. The vendor is taking it back.

But on behalf of several other posters, and myself, who have been arguing against the hysteria surrounding this incident for a couple weeks now. THANK YOU.

happy i can help... i know things can look pretty scary when stuff blows up, but you can't always blame the device connected to the explosion... it's quite often just a faulty wire. but people are understandably a little paranoid with anything that charges lithium based batteries, as even one explosion involving them is a pretty scary ... thing to see/have happen to you, and dangerous, so i can see why people are pretty keen on avoiding it at all....
 

sailorman

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happy i can help... i know things can look pretty scary when stuff blows up, but you can't always blame the device connected to the explosion... it's quite often just a faulty wire. but people are understandably a little paranoid with anything that charges lithium based batteries, as even one explosion involving them is a pretty scary ... thing to see/have happen to you, and dangerous, so i can see why people are pretty keen on avoiding it at all....

Thanks, but I wasn't the one who had the problem. I just offered to take the charger off his hands, but the vendor offered him a replacement.

I was one of a few people here trying to quell the hysteria and keep the O.P. from taking advice he was getting to trash his charger, his batteries and do everything but re-wire his entire house. It was pretty obvious what happened. Cheapo cord. Seen it a million times, but a lot of people couldn't believe it. Suddenly people were piping up saying the same thing had happened to them; their chargers "exploded". Right. A cord shorts and severs at the plug and it's an "explosion". God forbid they ever see an actual explosion.

I blame this all on that bonehead in Florida who stacked batteries and blasted his face. Suddenly, everything is either blowing up or about to blow up.
 

Strontium

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Thanks, but I wasn't the one who had the problem. I just offered to take the charger off his hands, but the vendor offered him a replacement.

I was one of a few people here trying to quell the hysteria and keep the O.P. from taking advice he was getting to trash his charger, his batteries and do everything but re-wire his entire house. It was pretty obvious what happened. Cheapo cord. Seen it a million times, but a lot of people couldn't believe it. Suddenly people were piping up saying the same thing had happened to them; their chargers "exploded". Right. A cord shorts and severs at the plug and it's an "explosion". God forbid they ever see an actual explosion.

I blame this all on that bonehead in Florida who stacked batteries and blasted his face. Suddenly, everything is either blowing up or about to blow up.



Buy li-ion charger that has AC/DC adapter (wall wart) separate from charger itself, and if anything happens it will be far away from your li-ion batteries/charger.

Problem solved.
 

sailorman

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Buy li-ion charger that has AC/DC adapter (wall wart) separate from charger itself, and if anything happens it will be far away from your li-ion batteries/charger.

Problem solved.

Excellent idea, as is Deach's. At least a wall wart is likely to be better quality than the cheapass cord.
Just so happens that the TR-001 is already equipped with a jack for a wall wart.
 

Loveridden

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Well I noticed today a break in my cord. It's right by the plug that goes into the charger, not the wall plug. The black outer part has broken and I can see the wires inside. Can I get a new cord at the hardware store? When I saw this I stopped charging my batts and unplugged it immediately. Or price wise is that not worth it, and I should just get a new charger instead? Is there some way to protect your cords by the plug ends from breaking like this?
 

zoiDman

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Well I noticed today a break in my cord. It's right by the plug that goes into the charger, not the wall plug. The black outer part has broken and I can see the wires inside. Can I get a new cord at the hardware store? When I saw this I stopped charging my batts and unplugged it immediately. Or price wise is that not worth it, and I should just get a new charger instead? Is there some way to protect your cords by the plug ends from breaking like this?

I forget what that type of Cord Connection is called but Yes, you can buy replacement cords for it. Might be cheaper to just get a New Charger and keep the Body of you old one as a Backup.

You could wrap some Electricle Tape around the area that wore out. On the New One.
 

zoiDman

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I did a quick search and I think that is type of cord is a 2C or "Two Slot" cord.

41tFAR%2B3YKL._SL500_AA300_.jpg

http://www.amazon.com/1-5M-2-Slot-Standard-Outlet-Cord/dp/B000J0AON4/ref=pd_cp_e_0

Not saying that this is a good one. Just a link you might be able to use for searching.
 

Rocketman

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I don't think anyone has reported a cord failure with the two wire parallel ZIP cord.

Lots of laptop supplies use the same plug. The overwrap vinyl cord with the connectors inside are the ones that are failing.

The strain relief grabs the outer vinyl jacket which stretches and puts the load on the wires themselves.
 

wyojoe

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I guess I have been lucky. I just now looked at both ends of my cord and they look fine. I have used the Trustfire multifunctional charge for around 10 months and I leave it plugged in and then insert the batteries, I charge around maybe 3 or 4 batteries every day, and have never had a problem. Hope it stays that way.LOL It is the 2 slot cord like in the picture above.
 

sailorman

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I guess I have been lucky. I just now looked at both ends of my cord and they look fine. I have used the Trustfire multifunctional charge for around 10 months and I leave it plugged in and then insert the batteries, I charge around maybe 3 or 4 batteries every day, and have never had a problem. Hope it stays that way.LOL It is the 2 slot cord like in the picture above.

This was a big argument around here. Whether to unplug your charger between uses. My charger, a cheapo Trustfire has been continuously plugged in for about 5 years. I have another 4 that have been plugged in from 1 to 8 years. I never had a cord problem with any of them. Know why? Because I'm not constantly plugging and unplugging them. They don't get stressed, they don't get strained, they don't move, they don't break and they don't short out. If it works now, and you don't fool with it, it will likely be working 10 years from now.
 

sailorman

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Would that charger be ok for charging the aw's? I know that they recommend it for Liion batteries only. Just wondering if switching chargers is something I should be concerned about.

Yes, it's fine for AWs. IMR batteries ARE technically lithium ion batteries. The important thing is voltage. Do not use a charger with a voltage that exceeds the nominal voltage of your battery by more than 0.1V. You wouldn't want to charge a 3.4 li-ion like some cellphone batteries on a 3.7V charger. You can charge the panasonic IMR 3.6V on this charger though.
 

Loveridden

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Thanks Zoidman will check out the cord :)

Rocketman, don't have a laptop, don't think I have anything else using a cord like this so gonna try to get a replacement online or somewhere. OR may try a different charger, was looking at this charger at madvapes this morn: HG-1210W Lithium Ion Battery Charger

Prob be good to have more than one anyways
 
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