651447 3.7V 450mAh LiPo Battery

Product Overview

The 651447 3.7V 450mAh LiPo Battery is a slim, elongated rechargeable lithium polymer cell designed for compact wearables and miniaturized electronics that demand reliable power in an ultra-small footprint. Measuring 6.5×14×47mm and weighing approximately 8g, it is optimally suited for smartwatches, TWS earbud charging cases, GPS trackers, BLE beacons, IoT sensor nodes, and other size-sensitive devices where every cubic millimeter matters.

Manufactured on automated production lines with 100% pre-shipment electrical testing and strict dimensional verification, every cell delivers consistent capacity and stable voltage output — ready for direct OEM integration.

Key Features

• ✅ Slim Elongated Profile – 6.5×14×47mm form factor fits narrow and band-style device housings
• ✅ 450mAh Reliable Capacity – 100% tested to guarantee true rated output on every unit
• ✅ Stable 3.7V Discharge – Flat voltage curve maintained across the full usable capacity range
• ✅ Built-in PCM Protection – Overcharge, over-discharge, overcurrent & short-circuit safeguards
• ✅ 500+ Cycle Life – ≥80% capacity retention after 500 full charge/discharge cycles
• ✅ Low Self-Discharge – ≤3% per month, ideal for always-on and low-duty-cycle devices
• ✅ Precision Dimensional Tolerance – ±0.2mm, critical for tight-fitting device enclosures
• ✅ CE & UN38.3 Certified – Air freight compliant, meets EU and global market import standards
• ✅ OEM/ODM Ready – Custom dimensions, capacity, connector, PCM & branding available

Specifications

Applications

Quality Assurance

Every cell undergoes a rigorous multi-stage QC process prior to shipment:

OEM & Custom Battery Solutions

We provide full-spectrum customization for wearable, IoT, and consumer electronics manufacturers:

• Custom Dimensions – Minimum thickness 3.0mm; adjustable width & length to match PCB or housing
• Capacity Range – 200mAh ~ 800mAh for similar slim elongated form factors
• Connector & Wiring – JST-PH 1.25, JST-ZH 1.5, Molex 51021, FPC flex connector, bare wire leads
• PCM Options – Ultra-thin PCM (≤1.5mm), NTC thermistor, fuel gauge IC (TI BQ27XXX series)
• Shape Options – Straight, L-shaped, or custom bent cells for ergonomic enclosure designs
• Branding – Private label, custom shrink wrap color, logo printing, retail-ready packaging
• MOQ – 200 pcs standard models ｜ 500 pcs full OEM custom cells

Packaging & Shipping

Why Choose Us

• 🏭 12+ years specialized in slim & miniature lithium polymer battery manufacturing
• 🔬 In-house micro-battery R&D lab — ultra-thin cells from 3.0mm profile and custom shapes
• 📋 ISO 9001 certified — full production traceability from raw material to finished cell
• 🏥 Medical-grade manufacturing experience meeting IEC 62133 & ISO 13485 standards
• ✈️ UN38.3 certified — seamless DHL / FedEx / UPS air express to 200+ countries
• 🌍 Trusted by wearable, medtech & IoT brands across EU, North America & Asia Pacific
• 📐 Free DFM review and engineering consultation for custom battery integration projects
• 💬 Dedicated account manager — engineering response within 4 business hours

💬 Share your device dimensions, available battery space, or target runtime — our engineers will recommend the perfect cell or develop a custom solution with a detailed quotation within 24 hours.