Tundra Tracker Battery Replacement mod

❗This is not a guide to replacing the battery, as it requires a steady hand and a great deal of care. You could damage the battery cell during this process. I am not responsible if you injure yourself or set your home on fire while doing this.❗ The model is press-fit, so be careful when attaching it to the tracker. What works/what doesn't work anymore: The I/O expansion port is no longer usable. The original screws can be reused. batteries that fit: 103040 3,7 V 1200 mAh [Battery life: 13.5 hours] 102540 3,7 V 1100 mAh [Battery life: 11.5 hours] Things I've used : battery Spot Weldernickel plated steel strips for spot weldingsmall side cuttertweezers