Humminbird VHF5 Battery Rebuild

I put my Sketchy Battery Welder to the Test by rebuilding a pack for a Humminbird VHF5 Marine Radio. 0:00 - Harassing the Fishies 2:06 - Predicting how the Charger Works 3:40 - Opening the Shell 4:24 - Removing the Pack 5:37 - Charger / Pack Schematic 6:30 - Testing the Charger 7:55 - Searching for Replacement Packs Online 8:34 - Low Self Discharge Considerations 11:34 - The Replacement Cells 12:10 - The Battery Welder 12:41 - Pack Assembly 12:49 - Stripping the Old Pack 13:07 - Gluing the Shape 14:03 - The Welding Strip 14:52 - Test Welds 16:33 - Battery Welding & Troubleshooting 18:48 - Solutions & Final Technique 19:48 - Test & Break-in Commentary 20:30 - Comments on Strip Thickness 23:00 - Comments on Pre Assembly Testing 23:20 - Tricky Edge Trimming 23:49 - Load Testing 24:43 - Welder Power Consumption 25:17 - Charge Rates & Test Charge 26:35 - Attaching the Charge Circuit 27:23 - Charger Test 27:50 - Weld Battery Results 28:14 - New Pack Charge Results 28:48 - Assembly Glue & Prep 30:32 - Shell Assembly 32:26 - Power On Test 32:43 - Postamble