26700 3500mAh 3V Sodium-Ion Battery

Features

1. Enhanced Safety: Sodium-ion chemistry is inherently more stable than some lithium-ion chemistries, exhibiting higher thermal runaway temperatures and being less prone to catching fire or exploding under abusive conditions like overcharging, short-circuiting, or physical damage .

2. Excellent Low-Temperature Performance: Maintains a higher discharge efficiency in cold environments compared to many Li-ion batteries, making it suitable for outdoor applications in winter .

3. High Power & Fast Charging: Capable of supporting high discharge rates (e.g., for power tools) and can be charged relatively quickly .

4. Cost-Effective & Eco-Friendly: Sodium resources are abundant and widely distributed, leading to potentially lower material costs and a more stable supply chain than lithium. The technology is also considered more environmentally benign .

5. Long Cycle Life: Designed for long-term use, with a cycle life that can exceed 2000 cycles under standard discharge conditions .

Specification

Applications

• Light Electric Vehicles (LEVs): Electric scooters, electric bicycles, and electric tricycles .

• Power Tools: Cordless drills, saws, and other high-drain tools .

• Energy Storage Systems (ESS): Small-scale solar energy storage, uninterruptible power supplies (UPS) .

• Portable Power Stations: Backup power for outdoor activities or emergency use.

• Consumer Electronics: High-power portable devices.

Warnings & Safety Instructions

Charging

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

• Temperature Control: Do not charge outside the specified temperature range (0°C to +55°C). Charging in extreme temperatures can cause permanent damage or hazard .

• Avoid Overcharging: Do not leave the battery connected to the charger indefinitely after it is fully charged.

Discharging

• Voltage Limit: Do not discharge the battery below the recommended cut-off voltage. Deep discharge can irreversibly damage the battery.

• Current Limit: Do not exceed the maximum continuous discharge current specified for the pack.

• Temperature Monitoring: If the battery pack becomes excessively hot during use, stop operation and allow it to cool down.

Storage & Disposal

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

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

• Disposal: Do not dispose of in regular trash. As a rechargeable battery, it must be recycled or disposed of according to local regulations at designated recycling centers.

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.