charger

Since specific details or nameplate images for the charger paired with the JECHAM 60V 4700W e-bike (as referenced in image_0.png) were not provided, I have created a comprehensive specification template for a typical, high-performance charger suitable for this type of vehicle.

This template includes both standard technical specifications and highlighted selling points targeted at performance-oriented DIY users.

JECHAM 60V Series High-Performance Smart Charger Specifications

To JECHAM Owners:

To match the formidable power of your bike's 60V system and 4700W motor, we provide this dedicated high-performance smart charger. It is not just an energy refueling station; it is the guardian of your battery's lifespan.

Below are the detailed specifications and technical highlights for this charger:

I. Core Electrical Specifications

These hard metrics determine charging speed and compatibility.

Nominal 60V DC

(Actual Max: ~67.2V - 71.4V)

II. Charging Performance & Technology Highlights

These features determine the charger's "intelligence" and battery protection capabilities.

1. 3-Stage Smart Charging Curve

This is the key technology for protecting battery lifespan.

• Stage 1: Constant Current (CC): Charges rapidly at the maximum set current (e.g., 10A) until the battery voltage approaches full charge. This is the fastest charging stage.

• Stage 2: Constant Voltage (CV): Maintains the full charge voltage precisely while the current gradually decreases. This fine-tunes the "final 10%" fill, preventing overcharging.

• Stage 3: Trickle/Float Charge: When the current drops to a very low level, the charger switches to trickle mode, maintaining full charge with minimum current while compensating for battery self-discharge.

2. Battery Management System (BMS) Synergized

• BMS Activation Function: The charger includes a low-voltage activation feature. Even if the battery enters a deep discharge state causing the BMS to shut down, the charger can attempt to activate the BMS and resume charging.

• Precise Cell Balancing: During the CV stage, the charger precisely maintains voltage, facilitating cell-by-cell voltage balancing performed by the battery's internal BMS, ensuring overall pack capacity and longevity.

3. Real-time Display & Monitoring (If Equipped)

• LED Status Indicators: Simple red/green light indicators (Charging/Fully Charged/Fault).

• Digital Tube/LCD Display (Premium Model Selling Point): Real-time display of charging voltage, current, input capacity, and estimated remaining time, making the charging process transparent and visible.

III. Comprehensive Safety Protections

For high-power charging, safety is paramount.

• Over-Voltage Protection (OVP): Prevents charger output voltage from exceeding safe limits and damaging the battery.

• Over-Current Protection (OCP): Prevents abnormally high charging currents.

• Short-Circuit Protection (SCP): Automatically shuts down on output short-circuit to prevent fire.

• Reverse Polarity Protection (RPP): The charger will not start if the battery positive and negative terminals are connected incorrectly, preventing damage.

• Over-Temperature Protection (OTP): Automatically reduces power or shuts down if the charger's internal temperature gets too high, ensuring its own safety.

• Timer Protection (Premium Model): Sets a maximum charging time limit to prevent continuous charging in case of battery failure.

IV. Structural & Physical Features

• Cooling Method: Active Fan Cooling. High-power charging generates significant heat; the built-in fan ensures continuous high power output without overheating.

• Enclosure Material: Full Aluminum Alloy Shell. Robust and durable, it also offers excellent passive heat dissipation.

• Connector Types:

  • Input End: Standard C13/C14 (IEC 60320) or regional plugs (e.g., NEMA 5-15P).

  • Output End: Dedicated High-Current Aviation-Style Plug (e.g., Anderson Connector, or specialized multi-pin plug with fool-proof design). Ensures safe high-current transfer, preventing looseness and arcing.

• Protection Rating: Typically IP20 (for indoor use), some models feature basic dust protection.

• Dimensions & Weight: Compact design, convenient for portability or fixing at a base charging station.