receiver pack repair

[rlouis12]

hello, Does anyone out there knows how to repair five cell hump receiver pack? It seems like the wires melted off because my cousin put it on backwads. I tried to soldier it back myself but it did not work. So please tell me on to repair them, what kind of soldier to use, and what procedure should I take.

 

[olds97_lss]

If he wired it in backwards, there's a good chance the batteries are fried internally. If nothing else, the life of the pack has probably been shortened.

You have to use a high heat iron to get a quick solder joint. If your iron won't get hot enough, it just heats the crap out of the battery but doesn't get hot enough to melt the solder to the battery good, which destroys it. I've been using 50/50 tin/lead solder in all the receiver packs I've made and it seems to work fine.

 

[rlouis12]

what kind of iron are you talking about, and who makes it?

 

[ADDAndy]

i use a snap-on 450 watt gun and 30/70 rosin core solder and it seems to work pretty well.

 

[mattyk6]

You do want a high-wattage iron when working with batteries. But, most people use an 60-80 watt iron.

Good name brand irons: Hakko and Weller

I have a Hakko 936 soldering station that I use on all my soldering needs. But Hakko and Weller (and others) all sell individual soldering irons.

 

[olds97_lss]

I have a cheap 25watt I think from radio shack. In order to do battery packs, I heat the tip with a mini butane torch, then work quickly. As often as I make packs (I've made 4 in 2 years), this suits me just fine. If your into electric racing and make packs more often, you would obviously want a better setup.