I picked up a couple of 38120L LiFePo4 based batteries packs(flat top Headway) and I'm trying to replace the dead cells with good spares. The batteries use0.5mm nickel strips, spot welded to make the pack (24v, 8s2p). I don't own a spot welder and the biggest readily available spot welder (Amazon) can only weldup to 0.25mm pure nickel strips (0.15mm if using the welding pen, which I'd have to use to weld in the center of the pack). To achievethe thickness and some of thestrength of the current 0.5mm welded strips, can I simply spot weld 0.15mm x 10mm pure nickelstrips together(also, what's readily available to me via Amazon) layering 4 strips on top of each other andshifting each weld 4 to 5millimeters left/right for each layer (to avoid undoing the previous layer weld)??
P.S. - As per the application, these packs are likely going to be used in an e-bike or with an inverter to power part of my house temporarily (we have a winter storm coming this weekend so we're expected a power outage).
P.S. - As per the application, these packs are likely going to be used in an e-bike or with an inverter to power part of my house temporarily (we have a winter storm coming this weekend so we're expected a power outage).