3000W Load Test: 6S2P 21700 Pack with Copper Busbars

In this video, I test a custom 6S2P battery pack built with Tenpower 50XG 21700 cells, 0.3mm copper busbars, and 10AWG output cables. This pack was tested at a 3000W constant load for 60 seconds to verify real-world performance, voltage sag, current delivery, thermal behavior, and overall build quality under a demanding load. This test is especially useful because it shows more than just datasheet numbers. It shows how the pack behaves under real stress with the actual busbars, wiring, and build configuration used for the client. Test details: Configuration: 6S2P Cells: Tenpower 50XG 21700 Busbars: 0.3mm copper Output cables: 10AWG Load test: 3000W constant load Test duration: 60 seconds High-current lithium battery testing should only be performed with proper equipment, monitoring, and safety precautions. Visit my store: https://DIY500AMP.COM Subscribe for more real battery testing, battery pack builds, spot welding content, and DIY high-current lithium battery projects.