Reliable Slim 3.7V 640mAh Rechargeable Li-Polymer Battery for Small Electronics

The LP-602055-1S-2M is a premium lithium polymer battery, featuring a nominal 3.7V voltage (4.2V full charge), 640mAh capacity, and 2.368Wh energy output. Engineered with advanced li-polymer chemistry, a slim prismatic 602055 form factor (6.5*21*56 mm), and a stable single-cell configuration, it merges space-saving flexibility, reliable runtime, and lightweight design—making it the ideal power source for mid-sized wearables, portable audio devices, IoT sensors, and compact consumer electronics that demand sleek integration without compromising performance.

Engineered for consistent, stable performance in diverse daily use conditions:

• Stable 3.7V Voltage Output: Maintains steady voltage throughout discharge, avoiding power drops that cause device lag, flickering, or sudden shutdowns. Critical for sensitive electronics like wearable sensors, audio drivers, and IoT transmitters.
• Wide Temperature Adaptability: Operates reliably from -20°C to 60°C, performing well in cold outdoor environments (winter fitness tracking) and warm indoor settings without compromising capacity or safety.
• No Memory Effect: Supports partial charging without capacity degradation, adapting to busy lifestyles where full charging cycles are not always feasible.

• Wearable Devices: Mid-sized fitness trackers, smartwatches, and wireless earbud charging cases.
• Portable Audio: Mini Bluetooth speakers, portable media players, and small headphones.
• IoT & Smart Home: Bluetooth beacons, environmental sensors (temperature/humidity), and mini smart doorbell accessories.
• Compact Gadgets: Handheld game consoles (mini models), portable LED lights, and keychain devices.
• DIY Projects: Arduino-based micro gadgets, small drone components, and custom wearable electronics.

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.