1. Introdución
This manual provides essential instructions for the safe and efficient use of your GT POWER 3 Amps AC Adapter. This smart charger is specifically designed for 48V Lithium Battery Electric Bikes, such as the Macfox X2 Mountain Bike EL-M21. It features automatic charging cessation when the battery is full, ensuring battery longevity and preventing overcharging.
The charger incorporates advanced protection mechanisms including Over Voltage Protection (OVP), Over Current Output Protection (OCP), and Short Circuit Output Protection (SCP) to safeguard both the charger and your electric bike's battery.
2. Produto rematadoview
The GT POWER AC Adapter is a compact and robust charging unit. Familiarize yourself with its components:

Figura 2.1: Fronte view of the GT POWER 3 Amps AC Adapter, showing the technical label with input/output specifications and safety certifications.

Figura 2.2: Arriba view of the charger, highlighting the LED indicator for charging status and the attached output cable.

Figure 2.3: Detail of the barrel connector, which connects to the electric bike's charging port.

Figure 2.4: The detachable AC power cable, used to connect the charger to a wall outlet.
3. Configuración e conexión
Follow these steps to properly set up and connect your charger:
- Ensure the charger is placed on a stable, flat surface in a well-ventilated area, away from direct sunlight or heat sources.
- Connect the detachable AC power cable (Figure 2.4) into the charger's AC input port.
- Plug the other end of the AC power cable into a standard 110V AC wall outlet.
- Connect the barrel connector (Figure 2.3) from the charger's output cable securely into the charging port of your 48V Lithium Battery Electric Bike (e.g., Macfox X2 EL-M21).
- Verify all connections are firm before proceeding.
Información importante de seguridade:
- This charger is designed for indoor use only. Do not expose it to rain, moisture, or extreme temperatures.
- Only use with compatible 48V Lithium-ion batteries. Using it with other battery types may cause damage or safety hazards.
- Do not attempt to open or modify the charger. Refer all servicing to qualified personnel.
4. Instrucións de funcionamento
Once properly connected, the charger will begin the charging process automatically. Monitor the LED indicator on the charger for status updates:
Estado do indicador LED:
- LED vermello: Indica que a batería está a cargar actualmente.
- LED verde: Indicates charging is complete. The smart charger will automatically stop charging to prevent overcharge.
Once the LED turns green, you may disconnect the charger from the electric bike and then from the wall outlet. It is recommended to disconnect the charger from the power source when not in use.
5. Mantemento e coidados
Un mantemento axeitado garante a lonxevidade e o funcionamento seguro do cargador:
- Limpeza: Desconecte o cargador de todas as fontes de alimentación antes de limpalo. Use un pano suave e seco para limpar o exterior. Non empregue produtos de limpeza líquidos nin disolventes.
- Almacenamento: Garda o cargador nun lugar fresco e seco cando non o uses. Evita temperaturas e humidade extremas.
- Coidado do cable: Do not bend or crimp the cables excessively. Avoid placing heavy objects on the cables. Inspect cables regularly for any signs of damage.
- Ventilación: Ensure the charger's ventilation openings are not blocked during operation to prevent overheating.
6 Solución de problemas
Se tes problemas co cargador, consulta a seguinte táboa:
| Problema | Causa posible | Solución |
|---|---|---|
| Charger LED not lighting up / Not charging | No power from outlet; Loose connection; Faulty cable; Battery already full. | Check wall outlet with another device; Ensure all cables are securely connected; Inspect cables for damage; If battery is full, LED will be green or off. |
| Charger feels excessively hot | Poor ventilation; Overload; Internal fault. | Ensure charger is in a well-ventilated area; Disconnect and allow to cool; If problem persists, discontinue use and contact support. |
| Green LED but battery not fully charged | Battery issue; Charger fault. | Verify battery health; Ensure charger is compatible with your specific battery; Contact support if issues persist. |
7. Especificacións
- Modelo: 522b
- Vol. De entradatage: 100-240 V CA, 50/60 Hz
- Vol. De saídatage: 54.6V DC
- Corrente de saída: 3 Amps
- Wattage: 165 vatios
- Tipo de conector: Barril
- Dispositivos compatibles: 48V Lithium Battery Electric Bikes (e.g., Macfox X2 Electric Mountain Bike EL-M21)
- Características especiais: Automatic Off (when battery is full), Over Voltage Protection (OVP), Over Current Output Protection (OCP), Short Circuit Output Protection (SCP)
- Compoñentes incluídos: AC Adapter, Power Cable
8. Garantía e soporte
Your GT POWER 3 Amps AC Adapter comes with a Un ano de garantía desde a data de compra, cubrindo defectos de fabricación. Ademais, unha Garantía de devolución de diñeiro de 30 días is offered for your peace of mind.
For technical support, warranty claims, or any questions regarding the product, please contact your retailer or the manufacturer's customer service. Please have your model number (522b) and proof of purchase ready when contacting support.





