Battery Jig for Welding / Soldering 7.2V / 9V Pack

This may be overly specific to be popular, but I thought it was helpful enough to share.

I had whipped this up to help me make replacement battery packs for some equipment at work, and it was night and day having this hold them in the correct shape for the form factor I needed. 

With 1.5V non-rechargeable batteries in series this will make a 9V nominal battery pack suitable for Arduino, etc.

With 1.2V rechargeable batteries in series (pictured) this will make a 7.2V nominal battery pack suitable for many RC applications.

Other voltage levels can be obtained by creating two or three parallel banks in this same 6xAA configuration as well.

(Just make sure you check whether you would need 1.5V non-rechargeable or 1.2V rechargeable batteries to do so.)

ALWAYS consult the input voltage minimums and maximums for anything you are intending to make your own pack for! :)