Electric two-wheelers shift the cost of riding from fuel to batteries. Here is the honest ledger, using published figures only.

Buying in

List prices start at roughly 13,990,000 VND for Yadea’s cheapest Vietnamese models and around 19,990,000 VND for a VinFast Evo excluding its battery. The battery question is the fork in the road: buy packs with the bike (higher price, no monthly fee) or rent them (175,000 VND per month for one VinFast battery, 300,000 for two).

Running costs

  • Electricity. Charging a moped-class pack at home costs a modest household sum per full charge — dramatically less than the equivalent petrol. Your bill rises, but per-kilometre energy cost stays the electric bike’s core advantage. We do not publish a fixed number because household tariffs and pack sizes vary.
  • Swapping. 9,000 VND per battery per swap at V-Green cabinets — the convenience premium over home charging.
  • Servicing. No oil, no plugs, no filters. The routine is brakes, tyres, suspension checks and battery health — cheaper and less frequent than petrol equivalents.
  • Insurance and registration. Whatever applies to your vehicle class applies here too; budget as you would for a petrol bike of the same class.

The long-run items

Battery ageing is the big one: capacity fades with cycles, and a replacement pack can rival the bike’s used value (see our replacement guide). Manufacturer warranty terms matter — Dat Bike ships a 3-year battery warranty and claims 150,000 km of battery life — because they define who pays when the fade comes.

Compared with petrol

Petrol bikes cost more per kilometre in fuel and servicing, less in capital and anxiety. Over years of city commuting, electric usually wins the total bill — provided you can charge where you park. If you cannot, swapping fees and station time shrink the gap. Rent either format first if you want the experience before the ledger: the shop’s E-Bike is 200,000 VND per day.