ASOL 553759 Lithium Polymer Battery — A compact 1350mAh soft-pack Li-Po battery delivering 4.995Wh energy in an ultra-slim 5.6mm profile. With its super-narrow 37.5×62mm rectangular footprint, this battery is engineered for ultra-compact device enclosures: TWS earbuds charging cases, smart bands, Bluetooth headphones, pocket vape devices, facial cleansing devices, mini massage guns, electric toothbrushes, and compact IoT devices.
Why Lithium Polymer vs Cylindrical?
- 📐 Ultra-Slim & Super-Narrow — 5.6mm thickness + 37.5mm width fits the tightest device enclosures
- 📏 Elongated Form Factor — 62mm length provides high capacity in a narrow footprint
- 🔋 Compact High Density — 1350mAh in a tiny package for extended portable device runtime
- ⚡ Balanced 1C Power — 1350mA continuous charge/discharge supports compact device needs
- 🪶 Featherweight — Aluminum-laminated soft pack minimizes device weight
- 🔧 Flexible Integration — Adapts to ultra-compact and irregular enclosures
- 🏭 OEM-Friendly — Custom tabs, wires, connectors, and PCM available
Key Features
- 🔋 1350mAh / 4.995Wh Compact Power — High energy density for ultra-compact devices
- 📐 Ultra-Slim 5.6mm Profile — Fits ultra-thin device enclosures
- 📏 Super-Narrow 37.5mm Width — Designed for slim-form devices
- ⚡ 1350mA Max 1C Discharge — Continuous power delivery for compact devices
- 🔌 Low Impedance ≤150mΩ — Efficient energy transfer
- 🔄 ≥300 Cycle Life — Reliable long-term performance
- 🌡️ Wide Temperature Range — Discharge -20
60°C, charge 045°C - 🛡️ Multi-Certified — UL, CB, KC, PSE, UN38.3 for global markets
- 🔧 OEM/ODM Ready — Custom tabs, wires, connectors, protection circuits
Specifications
| Parameter | Value |
|---|---|
| Model | 553759 |
| Chemistry | Lithium Polymer (Li-Po) Soft Pack |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 1350mAh |
| Nominal Energy | 4.995Wh |
| Dimensions (T×W×H) | 5.6×37.5×62mm |
| Impedance | ≤150mΩ |
| Charge Voltage | 4.2V |
| Standard Charge Current | 270mA (0.2C) |
| Max Charge Current | 1350mA (1C) |
| Standard Discharge Current | 270mA (0.2C) |
| Max Discharge Current | 1350mA (1C, continuous) |
| Charge Cut-off | 4.2V |
| Discharge Cut-off | 2.5V |
| Charge Temperature | 0~45°C |
| Discharge Temperature | -20~60°C |
| Storage Temperature | -20~45°C (recommended) |
| Cycle Life | ≥300 cycles (100% DOD, 0.2C, 25°C) |
| Weight (Approx.) | ~28g |
| Certifications | UL, CB, KC, PSE, UN38.3 |
Applications
🎧 Audio & Wearables (Top Match)
- TWS Earbuds Charging Cases — Perfect fit: 37.5mm narrow width slides into compact charging cases; 1350mAh provides 4-5 full charges for typical earbuds
- Small Bluetooth Headphones / Earphones
- Smart Bands / Fitness Trackers
- Smart Watch Charging Cases
- Wireless Earbuds Cases
💨 Consumer Electronics
- Vape / E-Cigarette Devices — Compact size ideal for pocket vape pens
- Mini Massage Guns (compact models) — Percussive therapy devices, tension relief
- Facial Cleansing Devices — Sonic face brushes, cleansing brushes
- Electric Toothbrushes — Rechargeable toothbrush battery
- Teeth Whitening Devices
🎮 Gaming & Entertainment
- Handheld Game Controllers
- Mini Retro Game Consoles
- TV Remote Controls (slim models)
- Portable Media Players
🔐 Smart Home & IoT
- Smart Door Locks (compact models)
- Bluetooth Item Finders
- Compact GPS Trackers
- Smart Home Sensors
- Wireless Doorbells
🏥 Health & Medical
- Blood Glucose Meters
- Digital Thermometers
- Pulse Oximeters (compact)
- Portable Nebulizers (mini)
📱 Other Compact Devices
- Portable Mini Fans
- Electronic Dictionaries
- Digital Voice Recorders
- LED Flashlights (rechargeable)
Why Choose ASOL 553759?
Ultra-compact professional power — The ASOL 553759 delivers 1350mAh (4.995Wh) in an ultra-slim 5.6mm profile with a super-narrow 37.5×62mm footprint — engineered specifically for the smallest portable devices. Whether powering a TWS charging case, a fitness tracker, or a pocket vape device, this battery provides reliable compact power without compromising device design.
Global certification coverage — With UL, CB, KC, PSE, and UN38.3 certifications, the 553759 is pre-cleared for deployment across North America, Europe, Korea, Japan, and global air transport. ASOL’s OEM/ODM team supports custom tabs, wire harnesses, connectors, and PCM protection circuit integration.
Wholesale Pricing
| Quantity | Unit Price | Savings |
|---|---|---|
| 100–499 pcs | Contact us | — |
| 500–999 pcs | Contact us | 8% off |
| 1,000–4,999 pcs | Contact us | 15% off |
| 5,000+ pcs | Contact us | 20%+ off |
📌 Wholesale Note: Sample orders and custom specifications welcome. Full certification documentation provided with shipment.
Contact Us
| Channel | Information |
|---|---|
| info@asol-battery.com | |
| +86 157 7985 8703 | |
| 🌐 Website | www.asol-battery.com |
| ⏰ Response Time | Within 24 hours on working days |
