18650 3.7V Battery 3500mAh

Protected 18650 Li-Ion Battery – 3500mAh Button Top

This high-capacity 18650 Li-Ion battery is designed for reliable and safe performance in a wide range of devices. Equipped with a button-top terminal and a built-in protection PCB, it offers protection against overcharging, over-discharging, and short circuits, helping to maximize both safety and battery lifespan.

Specifications

- Capacity: 3500mAh (3.5Ah)

- Energy: 12.95Wh

- Nominal Voltage: 3.6V – 3.7V

- Charging Voltage: 4.2V

- Maximum Continuous Discharge Current: 5A

- Pulse Discharge Current (5–6 seconds): 8A

- Battery Chemistry: Li-Ion (Lithium-Ion) Hybrid

- Terminal Type: Button Top

- Protection Circuit: Yes, fully protected with external welded PCB

- Weight: 46g (1.62 oz)

- Diameter: 18.6mm (±0.03mm)

- Length: 68.9mm (±0.03mm)

Key Features

- High-capacity 3500mAh cell for extended runtime

- Integrated protection circuit for enhanced safety

- Button-top design for compatibility with a wide range of devices

- Stable and reliable Li-Ion hybrid chemistry

- Protection against overcharge, over-discharge, and short circuits

Important Safety Instructions

- Fully charge the battery before first use.

- Only use high-quality Li-Ion CC/CV chargers designed for lithium-ion batteries.

- Never charge the battery above 4.25V, as this may trigger the protection circuit.

- Do not leave the battery unattended while charging.

- Avoid exposing the battery to excessive heat or direct sunlight.

- Do not store the battery fully charged for extended periods (one month or longer).

- Recharge the battery as soon as possible after it has been discharged.

- Store in a cool, dry location at approximately 3.6V–3.7V for long-term storage.

- Never use force when installing the battery.

- Do not attempt to open, modify, or disassemble the battery.

- Never use chargers that are not specifically designed for Li-Ion batteries.

A dependable and protected power source, ideal for devices that require a high-capacity 18650 battery with built-in safety features.