BAKTH-18500-1S-2M 3.6V 1500mAh Li-ion Battery Cell 18500 Rechargeable for Flashlight

The BAKTH-18500-1S-2M is a standardized, high-reliability cylindrical lithium-ion (Li-ion) battery, engineered to deliver consistent power for portable electronics and small-scale devices. Its model encodes key design traits: “18500" denotes the industry-standard cylindrical form factor (18mm diameter * 50mm length), “1S" confirms a single-cell configuration, and “2M" refers to its optimized manufacturing version—all combining to make it a versatile, easy-to-integrate power solution.

Core Performance & Practical Capacity

Operating at a nominal 3.6V (with a safe working range of 3.0V discharged to 4.2V fully charged), this battery matches the power requirements of most low-to-moderate consumption devices. Its 1500mAh capacity translates to tangible runtime: it powers a high-brightness LED flashlight for 8–10 hours of continuous use, a compact digital camera for 200+ photos, or a small Bluetooth speaker for 6–8 hours of playback—eliminating frequent recharging interruptions. The single-cell (1S) design simplifies integration, requiring no complex voltage regulation for devices built for single-cell Li-ion power.

Standardized 18500 Design Advantage

As an 18500-format battery, it adheres to global industry standards, ensuring seamless compatibility with thousands of off-the-shelf battery holders, chargers, and devices. Its cylindrical metal casing offers superior physical protection compared to flexible Li-po alternatives—resisting impacts, scratches, and minor drops, making it suitable for rugged use (e.g., outdoor gear, handheld tools). The standardized size also enables easy replacement: users can swap it with other 18500 batteries without modifying device enclosures, a key benefit for consumer and industrial maintenance.

Safety & Long-Term Durability

Safety is built into its design: a built-in Protection Circuit Module (PCM) guards against overcharging, over-discharging, short circuits, and overcurrent—preventing battery damage and mitigating risks like overheating or swelling. The high-quality Li-ion core supports over 300 charge-discharge cycles while retaining ≥80% of its initial capacity, outperforming lower-grade cylindrical batteries and reducing long-term replacement costs. It also features a low self-discharge rate (<5% per month), so it retains charge during storage—ideal for emergency devices (e.g., backup flashlights) or infrequently used gadgets.

Versatile Applications & Easy Charging

This battery’s adaptability makes it suitable for diverse use cases:

• Consumer Electronics: LED flashlights, digital cameras, portable MP3 players, and handheld game consoles;
• Outdoor & Tactical Gear: Camping lanterns, headlamps, and small GPS trackers;
• Industrial & DIY Projects: IoT sensors, small automation tools, and Arduino-based prototypes;
• Everyday Gadgets: Electric toothbrushes, portable fans, and mini air purifiers.

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.

ISO9001, ISO14001, UL, BIS, KC, USTC, CE, CB - our battery packs have reliable quality assurance.

No limitation - we offer competitive pricing based on order quantity. Sample orders are welcome to test our quality before bulk orders.

Standard warranty is 12 months (negotiable for special products). Our complete production process ensures quality before shipment.

Standard products: 3-4 weeks for samples (depending on cell availability), 5-8 weeks for bulk orders (varies by model and quantity).

Yes - our professional R&D team can provide customized solutions according to your requirements.