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Erlkoenig
Erlkoenig
06:23
@Criggie A good bike mechanic should have a spot welder, no?!?!
Criggie
Criggie
06:46
I have a battery spot welder, tool for the job etc.
gschenk
gschenk
07:44
A good battery is a spot welder.
 
1 hour later…
Erlkoenig
Erlkoenig
08:53
It won't be good anymore after that...
 
2 hours later…
Michael
Michael
10:59
@Erlkoenig what would a bike mechanic need a spot welder for? o.O
attaching cable stops to a steel frame is the only thing I can think of
Criggie
Criggie
11:41
Spot welder wouldn't be any good for that - a braze on fitting tends to need brazing.
Spot welding is only good for thin things like perhaps mudguards ?
 
5 hours later…
Erlkoenig
Erlkoenig
16:15
@Michael For rebuilding e-bike batteries! The cells need to be spot-welded to the power rails. Doing this as a business is probably pretty lucrative
Michael
Michael
@Erlkoenig are you “allowed” to open them up and just replace the 18650 cells? Who’s taking the blame if they catch fire and somebody’s house burns down?
Erlkoenig
Erlkoenig
16:47
You are allowed to, but you will be liable unless you can prove you did it according to best practices.
You are allowed to, but you will be liable unless you can prove you did it according to best practices.
 
3 hours later…
MaplePanda
MaplePanda
19:45
@Erlkoenig even ignoring the shitty soldering job, the wire they used looks awfully tiny...
Maybe it's intentional--the pack will desolder itself if it overheats :D
 
4 hours later…
Erlkoenig
Erlkoenig
23:20
@MaplePanda Yeah it's terrible on several levels. Soldering is fundamentally wrong for this application

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