Soldering or attaching a wire to a AA battery.
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green_dots
13:53:34 Mon
Jan 5 2009
Soldering or attaching a wire to a AA battery.
Greetings all. Can a wire be directly soldered to a AA battery without damaging the battery.Is there another way?I hear some AA's can blow up if they get too hot. GD.

Tbkahuna
14:45:33 Mon
Jan 5 2009
Re: Soldering or attaching a wire to a AA battery.
If you are doing a battery pack, you can get nicads with tabs made for soldering. They are welded to the case so you can solder to them.

I would be really careful if you are talking about other battery types. If you flux and tin the end of a battery quickly, you would be able to do it without heating up the battery very much. Use the lowest temperature solder you can find- that will still be over 400 degree F melt temp though.

gmiller0
15:13:46 Mon
Jan 5 2009
Re: Soldering or attaching a wire to a AA battery.
just my 2 cents, but it is pretty safe to by those type of NiCad Batteries and hook them together with the tabs and solder.. I used to race RC Cars for many many many many years and have built tons of battery packs :wink: I may have to try this idea when I get my BBird (which I'm hopefully ordering today :smile:

ATF_MALICIOUS
03:16:30 Tue
Jan 6 2009
Re: Soldering or attaching a wire to a AA battery.
Batteries are actually welded - spot welded. But soldering is fine as long as you're careful not to overheat the battery cell or block the vents. I do it occasionally at work to supply various test boards with portable power. However we have nickel strips available which makes it very easy to form different pack shapes once soldered.

While most spot welders aimed at battery pack building are cheaper than commercial varieties, it's still not cost effective to purchase a retail machine. Many electronics enthusiasts have implemented high discharge capacitors - 100,000 to 600,000 uFd sizes you might find in a large TV or computer monitor. Anyway - just be careful not to overheat and you should be fine. If you notice the battery plastic wrap melting - you're pushing the temp.


For a peek at the weld process you can look here -

http://www.hobbyspotwelders.com/HSBATTERYPEN.php

-Mal



Soldering or attaching a wire to a AA battery.
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