48V 21Ah 18650 Rechargeable Lithium Ion Battery

VCELL POWER factory's high quality 48v 21ah 18650 rechargeable lithium ion battery is assembled from 13S7P cylindrical lithium-ion cells. The cell manufacturing process is mature, ensuring high consistency. It boasts over 700 full charge-discharge cycles and a lifespan of 3-5 years, far exceeding that of lead-acid batteries. It is durable and offers excellent value. Equipped with a BMS (Battery Management System) for intelligent protection, it features overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring safety and reliability. Communication functionality can be added, with selectable communication protocols such as SMBUS/CANBUS/RS232, RS485/I2C/Bluetooth.

Product Parameter

Highlights of the 48v 21ah 18650 rechargeable lithium ion battery :

Universal 48V Compatibility – Directly replaces lead-acid batteries in most 48V systems.

High-Capacity 21Ah – Provides long-lasting power for medium/high-demand applications, minimizing charging stops.

Reliable 18650 Cells – Features mature technology for superior safety, stability, and performance consistency.

700+ Cycle Lifespan – Durable design ensures 3-5 years of dependable service.

Environmentally Safe – Contains no heavy metals and meets key eco-standards.

The applications of 48v 21ah li-ion battery

Electric bike, electric motorcycles, electric scooter, electric tricycles, garden trimmers, mobility scooters for the elderly, scenic area sightseeing cars, warehouse AGVs, outdoor camping power supplies, small inspection robots, etc.

Battery Details

Why Choose VCELL POWER CO., LIMITED?

1. In-House Manufacturing: Our own factory ensures guaranteed delivery times, with mass production typically completed within 25-30 days.

2. Competitive Pricing: We offer more attractive prices compared to other suppliers, with high cost-effectiveness

3. Customization Support: If you have specific requirements, you can also contact us, we can provide complete OEM/ODM services.

4. Quality Certification: Our company is ISO9001 certified, ensuring a standardized management system.

5. Rigorous Standards: All batteries are produced in compliance with UN38.3, UL, CE, and ROHS standards.

6. Global Trust: Our products have been exported to over 80 countries, earning the trust of customers worldwide.

What is Packing & Delivery of VCELL POWER CO., LIMITED?

Packing Standard:

1. Each battery is individually packed with protective insulation inside a sturdy box.

2. Boxes are then secured on cartons and loaded onto pallets for safe shipment.

Delivery Options & Timelines:

1. Express Shipping: Delivery to the USA and Israel via FedEx typically takes 5-7 days.

2. Express Shipping: Delivery to Europe via UPS typically takes 5-7 days.

3. Sea Freight: Cost-effective ocean shipping is available to most countries worldwide.

To ensure optimal performance and safety, please observe the following precautions:

Charging Recommendations:

1. It is not necessary to fully discharge the battery before each recharge.

2. Periodically (at least once every 2 months), perform a full charge/discharge cycle managed by the battery's protection circuit to calibrate the power gauge.

3. Always use the dedicated lithium-ion battery charger provided or specified for this model.

Storage Instructions:

For long-term storage, charge the battery to a partial level (recommended 40-60%) to slow self-discharge, and store it in a cool, dry, and dark place.

Critical Safety Warnings:

1. Do not disassemble, modify, crush, puncture, or apply physical force to the battery.

2. Do not touch this product with any metal object to prevent short circuit between positive and negative electrodes.

3. Do not expose the battery to moisture, extreme heat, or direct fire.

4. Do not reverse the polarity when connecting the battery (ensure correct positive/negative alignment).

5. Do not subject the battery to impact, excessive pressure, or heating.

6. The battery pack contains internal safety devices. Do not attempt to dismantle its structure, as this will void all safety protections.