Custom Small Premium 3.7V 1100mAh 523450AR Li-ion Battery Pack with PCM

The BAKTH-523450AR-1S-3J is a high-performance prismatic (pouch) lithium-ion (Li-ion) battery, featuring a slim 523450 form factor (52mm × 34mm × 5.0mm), nominal 3.7V voltage (4.2V full charge), and 1100mAh capacity—delivering 4.07Wh of stable energy. Designed with a flexible pouch structure, this battery merges ultra-thin profiles, lightweight design, and reliable performance, making it the ideal power source for slim portable electronics, wearable devices, and custom gadget projects that demand space-saving power without compromising runtime.

Crafted to address the needs of modern thin devices—where traditional cylindrical batteries won’t fit:

• Slim & Flexible Pouch Form: The 523450 prismatic design fits seamlessly into slim devices like wireless earbuds (charging cases), portable Bluetooth speakers, smartwatches, and mini IoT sensors. Its flexible pouch structure adapts to tight spaces and irregular device shapes, enabling sleeker product designs compared to rigid cylindrical batteries.
• 1100mAh Long-Lasting Capacity: Delivers balanced runtime for low-to-medium drain devices: powering a wireless earbud charging case for 5-7 full charges, a mini Bluetooth speaker for 4-6 hours, a smartwatch for 3-5 days (depending on features), or a portable fitness tracker for 1-2 weeks. Perfect for everyday use and on-the-go lifestyles.
• Stable 3.7V Voltage Output: Maintains consistent 3.7V nominal voltage throughout discharge, avoiding voltage drops that cause device lag, flickering, or sudden shutdowns. This stability is critical for sensitive electronics like medical wearables, GPS trackers, or small digital cameras, ensuring reliable performance until full depletion.
• Lightweight & Space-Efficient: Weighing only 23g, it adds minimal bulk to portable devices—ideal for wearables and slim gadgets where weight is a key design factor. Its flat profile maximizes space utilization, allowing device manufacturers to create thinner, more ergonomic products.

• Wearable Devices: Smartwatches, fitness trackers, wireless earbud charging cases, and portable health monitors.
• Slim Consumer Electronics: Mini Bluetooth speakers, portable media players, small digital cameras, and handheld game consoles.
• IoT & Smart Home Devices: Bluetooth beacons, environmental sensors (temperature/humidity), smart doorbells (backup power), and GPS trackers.
• Custom Projects & Gadgets: DIY electronics, portable LED lights, mini drones (small models), and handheld scanners.
• Emergency Backup: Small medical devices (e.g., glucose meters), portable radios, and emergency flashlights.

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.