soldering to batteries?

[naimlessone]

Hey there folks!

So my question for all of you fine folks here is about batteries for portables. Specifically these ones/types:

http://www.fasttech.com/products/1420/1 ... chargeable

this has a built in protection board already in the battery for charging protection.

and then these ones:
http://www.fasttech.com/products/1420/1 ... 00mah-3-7v

the second doesn't mention of a protection circuit but I could add one in myself.

for these types of batteries, i'm not quite sure of how to connect my wires to them as I have heard to never solder directly to the battery itself.

So, how would I accomplish installing these into a portable without blowing them up?

 

[Bush]

Rough up the contacts with sandpaper, tin wires and contacts with liberal flux, and try not to keep the iron on too long. It shouldn't take more than a second for a strong joint to form. Using flux means you don't need to sit there and heat up the contact with the iron, which seems iffy as far as safety goes.

 

[naimlessone]

Okay. I knew there had to be some method of doing it but I didn't want to blow something up by not asking someone first haha. Thanks Bush!

 

[C4RB0]

You really shouldn't solder to the battery directly. Look for batteries with solder tabs, like these:
http://www.ebay.com/itm/NEW-Panasonic-N ... 4d2851aaa5

Or you can use a battery holder, like this one:
http://www.ebay.com/itm/281199951833?va ... 1423.l2649

Also, if you make a battery pack, you usually use one protection circuit for the whole pack and not one for each cell.

 

[grossaffe]

yeah, soldering to batteries isn't a great idea. I have seen people spot-weld tabs onto batteries and then solder to those.