Is there any way to fix a lipo that was shorted?
I just got a few turnigy 2s lipos, and I wasn't thinking at all when I cut off the stock connector on one to solder on my deans. I just cut the pos and neg at the same time, which obviously caused a short. it was just for a split second, but it was long enough I guess to probably melt the connector for one of the cells. Checked the voltage of each cell, one reads 4.18, the other doesn't read anything.

I'm pretty sure it's trash, but hoping there might be some secret to fix it

Most of these have a small board with thin traces designed to pop when shorted. Sometimes it is possible to run a dab of solder across the broken trace. I have fixed a few like this.

can you possibly post a pic of what you mean? does it require opening the battery?

Yes you have to get inside the battery. Most likely you broke a solder tab. It's very hard to solder because a lot of them are aluminum.

Is it really advisable to open a hard case lipo?? Hmmm I don't think I would do it and at the price of a turnigy pack it's cheap enough to toss (learning from the costly error!) and buy new. Certainly wouldn't want to risk burning my house down!

+2

Unless your really good at soldering, like freaky good at soldering, I would not suggest messing with the inside of a lipo. If you do it, please do it outside in a well ventilated area, with a bucket of sand near by.

I'm freaky good at soldering and even I wouldn't attempt it.

I would never open up a lipo over a $25 battery, to my understanding lipos are dangerous mofos.
I'm sure I'll never make that mistake again atleast

Only if they are shorted / damaged or over-taxed.

It is the standard power in so many devices not just our cars.

I've unfortunately seen one explode firsthand, while it wasn't doing anything special other than powering an F1 R/C car. Even with normal usage: always charge in a safety bag.

I'm with burning eyes, its prob the trace he spoke of. I've used solder braid to repair one before.

Get a new battery, small price to pay for a lesson learned.