UberScoot 1600w 48v - Lithium Battery Scooter Upgrade

Timestamps:
0:00 - Project Scope (old batteries)
0:45 - New Battery, Parts, and Tools
2:17 - Scooter Controller
2:45 - Charge Port Removal
4:07 - New Charge Port Install
6:45 - Tidying Up Old Cables
8:11 - New Controller Power Cable
8:45 - Solder Connector Tips
10:33 - Fuse Removal
11:45 - Solder Connector Learning
12:59 - Scooter Connection Voltage Test
14:12 - Planning Final Steps and Padding
14:59 - Charge Port Voltage Test
15:20 - Padding and Final Look
15:54 - Quick Test Ride

Scooter Info:
Brand: UberScoot
Model: 1600w 48v
Controller Power Draw: 30A
Original Battery: SLA 12v (x4) @ 12Ah

Battery Info:
Brand: BtrPower
Voltage: 48v
Max Charge voltage: 58.8v ± 0.5v
End-off discharge voltage: 35v
Capacity: 35Ah or 2000Wh
Dimensions: 280*185*80mm / 11*7.3*3.1 in
Weight about: 26lb (11.9kg)
BMS: 13S Cell 48v 50A
Charger(110Vac): 5A
Charging time: 7-9 hours
Max charge current: ≤10A
Max Continuous Discharge Current: 50A
Max Discharge Current: 100A
Life cycles: more than 500 charge cycles
Operation temperature: -20℃～60℃
Storage temperature: -20℃～40℃