Hump packs

[dustin keeler]

Where do you guys recomend getting some? I tried to make one and it flopped. I have just the standard servo on top of the yoke and not mounted on the side any help would be awesome. Thanks in advance

[chops1sc]

Here's what I did with 8 cells.


Works pretty well, I get the better part of an hour of solid crawling.

[dustin keeler]

I had a hard time getting my soldering (misspelled sorry) to stick to the battery, does it have to be a special kind or something?

[Reflection]

Johns got some good deals on some nice packs.

Holmes Hobbies.

[chops1sc]

Did you use fresh batteries? If so you have to sand a little spot on each end. Use electric-friendly flux to help the solder stick. How hot is your iron?

[dustin keeler]

The batteries were used. Not sure on iron temp but I will try and sand before hitting it agian. Thanks for the advice I did just buy a hump pack from John thanks for the lead you guys rock

[Metal Masher]

Originally Posted by chops1sc

Did you use fresh batteries? If so you have to sand a little spot on each end. Use electric-friendly flux to help the solder stick. How hot is your iron?

That and you always apply heat to the face of the battery then add the solder. The hotter the iron the better as you want to get the surface hot fast and then cool quickly so the heat doesn't soak into the cell.

[trainer]

It really helps when you have a hot iron, I did not get the solder to stick onto cell with my old 30w iron so I bought a 60w one and now its child's play. You just have to watch out not to overheat the cells or you will destroy them. But actually with a hot iron the whole process is faster so the cells heat up less.