Technical manuals
AWithZ product guides: unboxing and getting started, settings, needle replacement, troubleshooting, maintenance and safety.
Unboxing, getting started, settings, needle replacement, troubleshooting, care and safety
Nickel Strip Peels Right Off After Spot Welding? 3 Steps to Tell Cold, False and Good Welds Apart
Many DIYers building 18650/21700/32140 or large-format cell battery packs run into the same common problem: the spot weld looks fine, yet a light tug peels the whole nickel strip off. In the vast majority of cases, that is a cold (false) weld.
AWithZ official — 2026-09-28
How to Build an 18650 Battery Pack: Complete Guide from Cell Grading to Spot Welding
A DIY 18650 pack is more than cells in series and parallel. Cell matching, insulation and weld quality decide its lifespan and safety. Most DIYers trip over three things: mismatched cells, cold welds and burned-through nickel strip. A standardized process gives a well-matched pack with solid welds.
AWithZ official — 2026-09-28