In 30 seconds
- Don't compare only motor watts: the battery defines how far you go.
- Multiply volts by amp-hours to get the capacity in Wh and compare different bikes.
- Be wary of a spec sheet and description that disagree in the same listing.
- Check the warranty: some listings state only 90 days.
Buying an e-bike online is easy, but incomplete or contradictory spec sheets are common. This guide shows what to check, with examples taken from real listings.
1. Look at the battery, not just the motor
Almost all bikes in this range have a 1,000 W motor. What changes the range is the battery capacity. To compare, multiply the voltage (V) by the capacity (Ah) and you get the value in watt-hours (Wh). A 48V 15.6Ah battery has about 749 Wh. A 48V 18Ah one, about 864 Wh.
2. Beware of "two 20Ah batteries"
Some listings say 20Ah without making clear whether that is the total or per battery. In the first case it's 960 Wh, in the second 1,920 Wh. Ask the seller before buying.
3. Compare range carefully
The number in the listing is the maximum, measured in ideal conditions. Rider weight, terrain, wind and speed reduce that value. When the listing lets you unlock the bike to 48 km/h, the range drops.
4. Check the weight
The same listing may say 37 kg in the spec sheet and 42 kg in the description. A 46 to 60 kg bike is hard to bring indoors or carry up stairs.
5. Check the warranty and who is selling
Some listings state only a 90-day factory warranty. Check whether the seller offers support and whether the listing's rating is consistent.
6. Read the recent reviews
Buyers who just received the bike haven't ridden it yet. Look for reviews from people who have used it for weeks and talk about the points that repeat the most, such as the tire and assembly.
7. Check the legislation
The listings talk about a self-propelled vehicle that needs no driver's license in Brazil. That classification applies to bikes within the limits of the law, and the "unlocked" mode at 48 km/h goes beyond those limits. Check the current rule before riding.
The bikes we used as examples
| V9 Max | V9 Max 2 baterias | V9 Max S | V40 Pro | |
|---|---|---|---|---|
| Motor | 1,000 W | 1,000 W (V9 Max line) | 1,000 W | 1,000 W |
| Battery | 48V 15.6Ah (about 749 Wh) | Two batteries, of smaller capacity than the V9 Max S | Dual, 48V 20Ah (from 960 to 1,920 Wh, depending on how the seller counts) | 48V 18Ah (about 864 Wh) |
| Advertised range | 40 to 60 km, depending on the listing | up to 100 km | up to 120 km | 60 km |
| Weight | 37 kg in the spec sheet (one listing says 42 kg in the description) | To be confirmed | 46 kg | 37 kg in the spec sheet (description says 42 kg) |
| Suspension and tires | Not stated in the listings analyzed | To be confirmed | Hydraulic suspension, 20x4 tires | Kenda or Innova tire, depending on stock |
| Extras | NFC, alarm, headlight with turn signals | To be confirmed | NFC, alarm, lock, independent throttle | NFC, alarm remote |
| Price seen | R$ 5,959 on the Mercado Livre profile | R$ 8,700 (listing paused) | R$ 8,147 on the Mercado Livre profile | R$ 6,750 on the Mercado Livre profile |
Spec sheets declared by the sellers on Mercado Livre on Oct 16, 2026, not measured by us. Prices change every day.
Which to choose
V9 Max
Good balance of motor, brakes and price.
V9 Max S
For riders who go far, with two 20Ah batteries.
V9 Max with 2 batteries
Two smaller batteries; spec sheet to be confirmed.
V40 Pro
Slightly bigger battery than the V9 Max, few reviews.
Choose by use: your route, the weight you can handle carrying and how much you want to spend. The spec sheet is only useful if you check each number.
Frequently asked questions
How do I calculate the battery capacity in Wh?
Multiply the voltage by the capacity. Example: 48V x 15.6Ah = about 749 Wh.
Is a 1,000 W motor enough?
For urban use, yes. What sets the bikes apart is the battery, the weight and the quality of the components.
See today's price
V9 Max
R$ 5,959
V9 Max 2 baterias
Price updated on the listing
V9 Max S
R$ 8,147
V40 Pro
R$ 6,750
Read also
How we did it
Data collected from Mercado Livre and minhaebike.com listings on Oct 16, 2026. Where listings disagree, we show the disagreement instead of picking a value. Capacity in Wh is calculated by multiplying voltage by capacity.