Battery Spot Welder Recommendations

[FazzaGBR]

I'm thinking about refreshing some old laptop batteries by carefully taking them apart, seeing what cells they are, getting them from CPC or RS Components etc. and then having a got at replacing them myself.

I dont have spot welder but have seen things like this on Amazon:

Battery Spot Welder

Are these sort any good or is there a better one you guys can recommend?

 

[ldkraemer]

Aliexpress has several
https://www.aliexpress.us/item/3256...|x_object_id:1005005646361312|_p_origin_prod:


Larry

 

[FazzaGBR]

Aliexpress has several
https://www.aliexpress.us/item/3256805460046560.html?spm=a2g0o.productlist.main.10.1ba3dRGxdRGxSS&algo_pvid=5d38ac1e-50aa-4b79-aaac-3bf45572821e&algo_exp_id=5d38ac1e-50aa-4b79-aaac-3bf45572821e-9&pdp_ext_f={"order":"1408","eval":"1","fromPage":"search"}&pdp_npi=6@dis!USD!20.24!14.74!!!20.24!14.74!@2101e2b417764354395997309e7bb4!12000033872232895!sea!US!0!ABX!1!0!n_tag:-29910;d:ed7f0f5a;m03_new_user:-29895;pisId:5000000203531369&curPageLogUid=1zmri1cSVZkU&utparam-url=scene:search|query_from:|x_object_id:1005005646361312|_p_origin_prod:


Larry

Which one do you have and how do you find it?

 

[ldkraemer]

The one I bought was in a kit, and I haven't assembled it yet. It's a different design.

Larry

 

[wolf_67]

I'm thinking about refreshing some old laptop batteries by carefully taking them apart, seeing what cells they are, getting them from CPC or RS Components etc. and then having a got at replacing them myself.

I dont have spot welder but have seen things like this on Amazon:

Battery Spot Welder

Are these sort any good or is there a better one you guys can recommend?

Hi, this one is too weak. Have bought it to repair all kind of akkupacks. Does not work for 18650 cells.

 

[FazzaGBR]

I've got quite a few CMOS batteries that I need to replace and I usually do it like this: https://www.retrocomputing.co.uk/2019/03/how-to-replace-cmos-battery-on-compaq_12.html

I'd love to do it properly using a spot welder but there are so many to choose from I don't want to buy one and it's not up to the job so was hoping someone would already be doing this sort of thing and recommend a particular one or at least certain specifications to get?

 

[atakioki]

Really thorough exploration of the options, but with a focus on larger and higher amperage packs than you would likely be working with:

 

[FazzaGBR]

Really thorough exploration of the options, but with a focus on larger and higher amperage packs than you would likely be working with:

Something like the SEQURE SQ-SW2 sounds like the thing I am after, just need to find where I can get one from or a similar alternative!

 

[modem7]

Hi, this one is too weak. Have bought it to repair all kind of akkupacks. Does not work for 18650 cells.

In case it assists:
Yesterday, I used my spot welder on six 10-amp 18650's. My spot welder is pictured below, something that I purchased about three years ago.