cool -- ill be up a while longer -- get some photos cus im not sure what you mean by the soldered contacts causing the battery to get scratched?
I will but I mean when I take them in and out the little tabs scratch the battery itself
cool -- ill be up a while longer -- get some photos cus im not sure what you mean by the soldered contacts causing the battery to get scratched?




Did you cut off the surface mount tabs? Maybe I'm not seeing the pics correctly but it looks like you soldered to the top of the battery connections and not to the surface mount solder point?
That could def be an issue if so. you dont to solder on a shiney piece of metal that can bend or it will break off.
If your surface mount solder tabs are still there bend them up and solder to those -- throw some electrical tape to keep them from shorting and your all set.
I've done a few but nothing to show off really -- wood dual 18650 mech and a mosfet build in a rushed 3d printed enclosure.
I have a dna40 clone en route that I'm working on a 3d printed enclosure for, should be here soononce i get it in hand I want to measure the screen and how long the cable for the screen is so I can finiish the design and print up the case -- if it comes out decent looking I'll post some pics -- although aesthetics is not my strong suit
I'm better with the electronics and technical side of things.
Will take pictures in a minute, but damn man I re did this whole mod because my contacts where to tight last time and would Scratch my battery as it came out but I think this one is going to do the same thing.....
ahhh this is so frustrating haha. I have a Dna40 sitting here on my desk but am not even attempting anything with that until I can get a Dual 18650 with a mosfet to run PERFECTLY. I didn't even bother painting this one or making the out side look perfect but out of all the things in the battery sled gave me the most problems Im just really bad at doing the contacts all my other solder joints look really good and seem to have a good connection, but as soon as I get to them contacts I just fall apart. ha
Can I give you 1 Suggestion.
Before you attempt to Solder leads onto a Circuit Board, you might want to do some Practicing on something you don't have to worry about Ruining.
Most people have an Old Video Card or Network card laying around. It is Nice to take some Wire and Practice soldering Wire to it Before they try their Luck on something like a DNA40 Board.
Also, having a way to hold things when Soldering is about 1/2 the Battle. One of these Gizmos can come in Very Handy.
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SE MZ101B Helping Hand Magnifier - Educational And Hobby Magnifiers - Amazon.com
Thanks, I have 2 helping hands a cheap one from amazon and a pretty good one from radio shack
and I did practice on another board and it all worked out fine the only problem I have had is with the contacts.
About half way there, Quick question my solder tip is getting a little hook cut into it. I have replacement tips, but is this normal I've used it on a few builds?
Can I give you 1 Suggestion.
Before you attempt to Solder leads onto a Circuit Board, you might want to do some Practicing on something you don't have to worry about Ruining.
Most people have an Old Video Card or Network card laying around. It is Nice to take some Wire and Practice soldering Wire to it Before they try their Luck on something like a DNA40 Board.
Also, having a way to hold things when Soldering is about 1/2 the Battle. One of these Gizmos can come in Very Handy.
![]()
SE MZ101B Helping Hand Magnifier - Educational And Hobby Magnifiers - Amazon.com