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› Lipo Short Circuit Damage
11-25-2006 02:37 PM  11 years agoPost 1
Darren Lee

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Woodstock, GA

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I just got a new TP 11.1v 1320 pack for my Blade CP and I think it's toast. I was installing a Deans micro connector and had a split-second short circuit. The pack was fully charged when this happened. Now it won't charge or discharge on my ICE. It says voltage is too high for 3-cell. And it won't do anything when plugged into my LBA6 balancer. I haven't tried to run the pack. Has anyone experienced this?

Will Thunder Power help me out?

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11-25-2006 05:45 PM  11 years agoPost 2
Rob_T

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There have been a few people do that before. It seems that what happens most often is that the tabs that make the connections between the cells burn out like fuses. For most people the battery is not repairable.

PS when working on any battery, you should always finish off insulating one connection before stripping the insulation on the other. Then unless you get really unlucky with burning through the insulation with your soldering iron, this sort of thing shouldn't happen.

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11-25-2006 06:05 PM  11 years agoPost 3
Darren Lee

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Woodstock, GA

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Yes, actually I did strip and insulate the wires individually. I will blame the incident on the Deans Micro soldering instructions. It says to plug in the mating connector while you are soldering to help prevent damage to the plastic by overheating. Not really a smart idea if the mating connector is naked! I completely overlooked this danger.

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12-05-2006 02:31 PM  11 years agoPost 4
Darren Lee

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Woodstock, GA

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OK, I was going to ship this pack to Thunder Power last night, but I decided to check it again first. Now it works! It took a charge, and then I tested it by running a 2C discharge on the ICE for about 10 minutes. Looks fine! Haven't flown it yet though. What could be going on here? It just sat on the bench for about a week. Should I be concerned about the stability of this pack?

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12-05-2006 04:54 PM  11 years agoPost 5
Two Left Thumbs

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Houston, Texas - USA

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I shorted a brand new TP pack, installing an Astro connector. Dumb move, I used a screw driver to seat the pins and bridged the gap. The short was very, um, short, just a quick zap, no heat or welding.

After I got done cursing at myself, I put the back in the BBQ over night. The pack didn't swell, checked fine on a meter. I now have over 30 flights on it, and it behaves the same as my other TP packs.

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12-06-2006 05:19 AM  11 years agoPost 6
Dennisu

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Langley, B.C. Canada

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beeflyer2

Why not give it a full discharge on the ICE and see what it does. Have it shut down at 3.7 volts per cell and that should give you about a 70% discharge. This will check that it will work for the amount of discharge that you should be using it for. If it doesn't get to 70% discharge (924 mAH) then it really is toast.

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