18650 850mAh 35C 2.90V Sodium-Ion Battery

Features

1. Inherent Safety: Sodium-ion chemistry is often considered less prone to thermal runaway compared to some high-energy lithium-ion chemistries, enhancing safety .

2. High Power Capability (35C): Capable of delivering very high discharge currents (up to ~29.75A continuously), making it suitable for power-intensive applications.

3. Excellent Low-Temperature Performance: Typically performs better than lithium-ion batteries in low-temperature environments .

4. Fast Charging: Supports rapid charging, potentially up to 1C or higher.

5. Abundant Raw Materials: Utilizes sodium, which is more abundant and geographically widespread than lithium, potentially leading to lower long-term costs and better supply chain stability.

6. Environmentally Friendly: Some chemistries can be made from more environmentally benign materials and may have a simpler recycling process.

Specifications

Applications

• Power Tools: Drills, saws, and other cordless tools requiring high burst power.

• Electric Mobility: High-performance electric scooters, skateboards, or drones.

• Energy Storage Systems (ESS): Particularly for applications requiring high power density and good safety, such as uninterruptible power supplies (UPS) or grid stabilization .

• Starter Batteries: For small engines or motors requiring high cranking currents.

• High-Discharge Flashlights: Tactical or professional lighting equipment.

Warnings & Safety Instructions

Charging

• Use Designated Chargers: Charge only with a charger designed for sodium-ion batteries with the correct voltage and current limits. Using a lithium-ion charger is unsafe.

• Temperature Control: Do not charge outside the specified temperature range (0°C to +55°C). Charging below 0°C may cause plating and permanent damage; charging above 55°C is hazardous.

• Voltage/Current Limits: Do not exceed the maximum charge voltage or current.

Discharging

• Current Limit: While rated for 35C continuous discharge, avoid sustained operation at the maximum limit in high-temperature environments to preserve cycle life.

• Voltage Limit: Do not discharge below the cut-off voltage (2.0V). Deep discharge can damage the battery.

• Temperature: Monitor battery temperature during high-rate discharge.

Storage

• Ideal Storage Charge: For long-term storage, store the battery at a state of charge between 30% and 50%.

• Storage Environment: Store in a cool, dry place away from direct sunlight and moisture.

Shenzhen Manli Technology Co., Ltd. is a high-tech manufacturing enterprise specializing in the R&D, production, and sales of lithium batteries.
The product portfolio encompasses a wide range of battery types, including high-capacity, low self-discharge, power-type, and high/low-temperature variants. These products are widely utilized in various smart drones, model aircraft, emergency power supplies, lighting fixtures, toys, smart home appliances, and other consumer electronics. The company possesses comprehensive R&D, design, and manufacturing capabilities, a robust quality management system, as well as testing facilities for battery performance and safety compliance. We are fully equipped to meet customers' personalized and diverse needs with tailored solutions, delivering cost-effective and reliable battery products. Our battery products have obtained third-party certifications such as UL, CE, KC, CCC, BIS, CB, PSE, REACH, ROHS, and UN38.3.
We aspire to collaborate with like-minded partners worldwide, leveraging advanced battery technology to strive for a greener, smarter, and more sustainable future.