DGS
Heliman
Location: Hamburg, NY
My Posts This: Topic Forum | This afternoon I think I used up a years worth of luck (or more). I was charging up packs and gear for a day of flying tomorrow. I brought my LiPo charger out into the garage to charge some heli packs and my starter. I started charging one of the 4s, 2350 LiPos for my starter and headed into the backyard to do some work. The charger and battery were on the concrete floor but relatively close to my truck. About 15 minutes later as I was dragging the hose around the front of the house I heard several 'pops'. I immediately looked around hoping to see some neighborhood kids goofing around with something. No kids..no one around. A couple more pops and I was sprinting into the garage. No fire, charger still charging, no alarms...opened the door into the house... no problems... and then more noise behind me.
I yanked out the power to the charger and fumbled around trying to unplug the charger and balancer from the pack. Now the pack was hissing and popping and having seen vids of LiPo fires I knew what was about to happen. I put the starter with the LiPos - I had two 4s LiPos on this starter - on the driveway and tried to figure out the fastest way to get my Dynatron detached from these packs. Finally managed to unscrew the lower plate holding the two batteries, but no time to get the batteries seperated. The hissing pack ignited. I watched it burn for a couple seconds then decided to try to get some pictures of this. Ran into the house and the first camera I found had a low battery..that figures. Ran back out and checked the fire - and was amazed at the blow torch that comes out of these batteries. I finally found my other camera, but I missed the most impressive part of the burn.
I can't believe how close this was to a real mess. Thinking about the situation, I realize I ignored a couple of hints that something was going wrong. Recently the charger 'faulted out' a couple times with a warning. I unplugged the charger and balancer, reconnected and the pack seemed to charge normally. I thought that the balance connector may have been an issue because some of those connectors get a loose feel after a while. I'll be sending the charger back to the manufacturer for repair or replacement, however I will be much more careful of how and where I charge any LiPo. Thought I should post this just as a reminder. I've seen and heard all the warnings and I've been using LiPos for 5 years and never had an issue - until today.
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had them puff last one the rotor blade went through 3 cells of a 6s pack and nothing but white smoke had a align pack get poped open and no fire 
just kiddin glad u saved ur starter and equipment oh and most of all ur house. the ammo can is great just keep lipo inside and be able to disconnect and toss out the window incase of smoke 
i dont put any thing but batt in the box as if it goes i want to salvage my balancer and dean lead 
