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u/Psychological-Ad2562

Image 1 — HELP! Need suggestions for removing old solder points and the bits of nickel plates from used lithium ion batteries (Repost) (Read description)
Image 2 — HELP! Need suggestions for removing old solder points and the bits of nickel plates from used lithium ion batteries (Repost) (Read description)
Image 3 — HELP! Need suggestions for removing old solder points and the bits of nickel plates from used lithium ion batteries (Repost) (Read description)
Image 4 — HELP! Need suggestions for removing old solder points and the bits of nickel plates from used lithium ion batteries (Repost) (Read description)
Image 5 — HELP! Need suggestions for removing old solder points and the bits of nickel plates from used lithium ion batteries (Repost) (Read description)
Image 6 — HELP! Need suggestions for removing old solder points and the bits of nickel plates from used lithium ion batteries (Repost) (Read description)
▲ 2 r/battery+2 crossposts

HELP! Need suggestions for removing old solder points and the bits of nickel plates from used lithium ion batteries (Repost) (Read description)

About a year ago I bought a used electric scooter for 150€. It was in ok condition but a bit of the battery has now suffered from water damage and I took the battery apart and ordered 40 new lithium ion batteries. The old battery pack had about 120 4,2V batteries and most of them are in good condition.

The only problem I have is that the old solder points could make it harder to spot weld the old batteries because of the old solder points. I wan't to try using a straight grinder with a non-conductive end. Is it a good idea, probably not but i've haven't come up with any other solution that is time effiecent.

Any ideas or solutions? It needs to be pretty flush so the current would not be limited

(Deleted the old post to change the title)

u/Psychological-Ad2562 — 8 days ago
▲ 5 r/battery+2 crossposts

Removing old solder points and the bits of nickel plates from used lithium ion batteries

About a year ago I bought a used electric scooter for 150€. It was in ok condition but a bit of the battery has now suffered from water damage and I took the battery apart and ordered 40 new lithium ion batteries. The old battery pack had about 120 4,2V batteries and most of them are in good condition.

The only problem I have is that the old solder points could make it harder to spot weld the old batteries because of the old solder points. I wan't to try using a straight grinder with a non-conductive end. Is it a good idea, probably not but i've haven't come up with any other solution that is time effiecent.

Any ideas or solutions? It needs to be pretty flush so the current would not be limited

u/Psychological-Ad2562 — 8 days ago