E-bike & e-scooter technician
An 8-step path to repairing electric scooters and e-bikes: lithium and lead-acid battery safety, DC electrics, BLDC hub motors, controllers, chargers, lithium packs and BMS boards, brakes, tyres and suspension, and diagnosing VinFast, Yadea and Pega models. Suits people who enjoy electronics and light mechanics.
Start here
Step 1: Lithium, lead-acid battery & fire safety
One short lesson per step, 10–15 minutes on a phone. No sign-up needed.
Hands-on roadmap
Roadmap
- Step 1Lesson
Lithium, lead-acid battery & fire safety
Fire risk from shorted, swollen or damaged lithium packs; no overnight charging of faulty packs; extinguishers and sand bins for isolation; insulated gloves and proper lead-acid disposal.
No English content for this step yet.
- Step 2Lesson
DC electrics & e-scooter layout
48V, 60V and 72V systems, current and power; block diagram of battery, controller, motor, throttle, brake cut-off and lights; safe multimeter measurement.
Requires: Lithium, lead-acid battery & fire safety
No English content for this step yet.
- Step 3Skill
BLDC motors & Hall sensors
Remove hub motors, test windings, Hall sensors, bearings and magnets; fix noise, jerking and overheating; common error: wrong phase and Hall order causing reverse or vibration.
Requires: DC electrics & e-scooter layout
No English content for this step yet.
- Step 4Skill
Controllers, throttles & chargers
Test MOSFETs, capacitors and the 5V throttle supply; swap in compatible controllers and set modes; repair chargers that fail or overheat; check brake cut-offs and alarm locks.
Requires: BLDC motors & Hall sensors
No English content for this step yet.
- Step 5Skill
Lithium packs, BMS & cell balancing
Measure each cell group, find weak cells, replace with matching cells using a spot welder; replace BMS boards; explain when a new pack beats a rebuild.
Requires: Controllers, throttles & chargers
- Step 6Skill
Brakes, tyres, suspension & brand diagnostics
Replace disc and drum brake pads, plug tubeless tyres, swap shocks; use VinFast and Yadea diagnostic apps or tools where available; respect manufacturer warranty terms.
Requires: Lithium packs, BMS & cell balancing
No English content for this step yet.
- Step 7Project
Repair and restore five real e-scooters
Take five scooters with different faults (dead, weak battery, jerking, not charging), log readings before and after, road-test, estimate battery health and hand over with charging advice.
Requires: Brakes, tyres, suspension & brand diagnostics
No English content for this step yet.
- Step 8Assessment
Skills test, pricing & launching a service
Timed diagnosis of three scooters plus a battery safety quiz; price controller, motor and battery repairs with a warranty policy; get customers via Zalo and Google Maps.
Requires: Repair and restore five real e-scooters
No English content for this step yet.
