What causes an electric tricycle to show no power when the key is turned on?
2 Answers
There are several reasons why an electric tricycle may show no power despite being fully charged: Battery damage: If the battery is faulty, the charger may only supply superficial power. Although the charger indicates a full charge, the battery power depletes instantly when the key is turned on and power is used, necessitating battery replacement. Loose battery connection wires: Similarly, with small charging currents, the tricycle may operate normally. However, when the key is turned on and the current increases, loose wires may disconnect. Replacing the battery connection wires can resolve this issue. Charger not properly inserted: If the charger plug is not fully inserted, it may show a full charge after a short while, but the battery is not actually charged. Consequently, the tricycle displays no power when used.
Last time my electric tricycle had no power at all when turning the key, which really worried me. From experience, it's mostly battery issues, like insufficient charging or loose connections. You should first check if the battery terminals are tight or corroded—if loose, try tightening them; or if the battery is old and completely dead, you'll need to charge or replace it. Second, blown fuses are quite common, usually found in the controller box—check if the corresponding fuse is burnt black, and replacing one isn’t costly. Weather has a big impact: rainy days increase short-circuit risks, and cold winter temperatures reduce battery efficiency. There’s also the possibility of controller failure, like a damp circuit board burning out. The key is not to force-start it to avoid damaging core components—getting it checked at a repair shop is the safest bet. Regularly keeping the battery fully charged and inspecting wiring can prevent most issues. Safety first—don’t risk DIY repairs on complex circuits.
