18650CR-1S-CT Cylindrical 3.6 V 3380mAh Lithium Ion Battery Cell for Industrial Devices

The Cylindrical 3.6V 3380mAh 18650CR-1S-CT Li-ion Battery is an industry-standard, high-performance power solution built on the iconic 18650 form factor—widely recognized for its compatibility, durability, and energy density. Tailored for both consumer electronics and small-scale industrial applications, this battery balances generous capacity with stable output, making it a go-to choice for devices requiring reliable, long-lasting power.

Operating at a nominal 3.6V (with a safe working range of 3.0V discharged to 4.2V fully charged), this battery delivers consistent voltage to match the needs of most mid-power devices. Its 3380mAh high capacity translates to practical, extended runtime: it can power a portable LED work light for 12-15 hours, a handheld gaming console for 6-8 hours of play, or a small portable charger (power bank) to top up a smartphone twice. The 1S (single-cell) configuration simplifies integration, eliminating the need for complex voltage regulation in devices designed for single-cell lithium-ion power.

As an 18650-format battery (19mm diameter × 69.5mm length), it adheres to global industry standards, ensuring seamless compatibility with thousands of devices and battery holders. Its cylindrical shape enables easy modular assembly—users can connect multiple batteries in series (for higher voltage) or parallel (for higher capacity) to power larger systems, such as DIY solar energy storage kits or electric scooter auxiliary power supplies. The robust metal casing adds physical protection against impacts and wear, making it suitable for rugged use in outdoor or industrial environments.

Safety is integrated into its design, with a built-in Protection Circuit Module (PCM) that guards against overcharging, over-discharging, short circuits, and overcurrent. This prevents device damage and reduces safety risks, even during prolonged use. The battery also boasts a long cycle life of over 500 charge-discharge cycles (retaining ≥80% of initial capacity), outperforming lower-capacity 18650 batteries and reducing long-term replacement costs. Its wide operating temperature range (-10°C to 60°C) ensures reliability in both cool indoor settings and warm outdoor conditions.

This battery's adaptability makes it ideal for diverse uses:

• Consumer electronics: Powering laptops (secondary cells), flashlights, digital cameras, and portable audio players
• Small industrial devices: Supporting IoT sensors, handheld meters, and emergency backup lights
• Outdoor & DIY projects: Fueling camping lanterns, portable fans, and custom robotics builds
• Wearable devices: Smartwatches, fitness bands
• Bluetooth accessories: TWS earbuds, headphones
• IoT sensors and smart home devices
• Portable medical monitoring equipment
• Mini drones and electronic toys

Shenzhen BAKTH Technology Co., Ltd. was established in 2002. For 21 years, we've specialized in battery pack assembly and PCM/BMS design and production. Our 5,000-square-meter factory features automated production lines and SMT assembly capabilities.