ASOL 500943 Lithium Polymer Battery — An ultra-compact Li-Po soft-pack cell with 185mAh (0.685Wh) capacity, purpose-engineered for slim active stylus pens and precision input devices. Measuring just 5.1mm thin with a slender 10.5 × 45mm body, this battery is designed to fit inside the narrow barrel of smart pens, digital drawing styli, interactive whiteboard pens, and e-paper writing devices where space is critically limited. With an extended operating temperature range of -20°C to +60°C and an impressive cycle life of ≥500 cycles, the 500943 delivers consistent, long-lasting performance for premium stylus products demanding high reliability, compact form factor, and full OEM integration flexibility.
Why Lithium Polymer for Stylus Pen Applications?
- 📏 Ultra-Slim 5.1mm Thickness — Engineered to fit the narrow barrel of slim stylus pens (≤6mm diameter) where no cylindrical cell can fit
- 📐 Precise Form Factor — 10.5 × 45mm footprint precisely matches the internal space of standard active stylus pen housings
- 🔄 Long Cycle Life ≥500 Cycles — Outlasts typical stylus usage patterns; 500+ charge cycles ensures 2–3 years of daily use without significant capacity fade
- 🌡️ Wide Temperature Range — Reliable performance from -20°C to +60°C; works in cold outdoor environments and warm enclosed carrying cases
- 🪶 Lightweight Construction — Aluminum-laminated soft pack weighs just ~4–5g, maintaining the natural balance and feel of precision stylus pens
- 🔧 OEM Integration Ready — Custom wire length, ultra-thin connector (JST 1.0), and protection circuit module (PCM) available for direct pen assembly integration
Key Features
- 🔋 185mAh / 0.685Wh Capacity — Optimized energy density for extended stylus session runtime within strict volume constraints
- 📐 Ultra-Compact Dimensions — 5.1 × 10.5 × 45mm; purpose-designed for slim active stylus and digital pen barrel housings
- 🌡️ Extended Temperature Range — Discharge: -20°C to +60°C; charge: 0°C to +45°C; reliable in diverse environments
- 🔄 Long Cycle Life ≥500 Cycles — Superior longevity for daily-use precision input devices
- 🔌 Stable 3.7V Voltage Platform — 4.2V charge cutoff / 3.0V discharge cutoff for consistent input accuracy
- 📊 AC Impedance ≤200mΩ — Efficient power delivery for low-power BLE and EMR pen electronics
- 🪶 Ultra-Lightweight ~4–5g — Aluminum-laminated soft pack construction minimizes weight impact on pen balance
- ⚡ 185mA Continuous Discharge — Matches typical stylus BLE chip and pressure sensor current requirements
- 🔧 OEM Customization — Custom wire length, connector (JST 1.0 / ZH 1.5), polarity, and PCM protection available
- 🛡️ UN38.3 Tested — Safe for international air transport; CE, MSDS, RoHS documentation available
Full Specifications
| Parameter | Value |
|---|---|
| Model | ASOL 500943 |
| Cell Type | Lithium Polymer (Li-Po) Soft Pack |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 185mAh |
| Energy | 0.685Wh |
| Dimensions (T×W×L) | 5.1 × 10.5 × 45 mm |
| Weight (approx.) | ~4–5g |
| Configuration | 1S1P |
| AC Impedance | ≤200mΩ |
| Charge Voltage (Cutoff) | 4.2V |
| Discharge Cutoff Voltage | 3.0V |
| Max Continuous Discharge Current | 185mA (1C) |
| Charge Temperature | 0°C ~ +45°C |
| Discharge Temperature | -20°C ~ +60°C |
| Storage Temperature | -10°C ~ +35°C (recommended) |
| Cycle Life | ≥500 cycles |
| Self-Discharge Rate | ≤3% per month (at 25°C) |
| Connector | JST 1.0 PH / Customizable |
| Certifications | UN38.3; CE, MSDS, RoHS available |
Application Scenarios & Use Cases
✏️ Active Stylus Pen & Smart Writing Pen
The ASOL 500943 is the ideal power source for active capacitive and EMR stylus pens used with tablets, smartphones, and touchscreen laptops. Its ultra-thin 5.1mm profile and 10.5 × 45mm body are precisely matched to the internal barrel space of slim active stylus designs. The 185mAh capacity supports multiple hours of continuous handwriting, while the ≥500 cycle life ensures reliable performance through years of daily note-taking use.
Active Stylus Battery Capacitive Pen Battery EMR Stylus Battery Tablet Pen Battery
🖊️ Digital Drawing Pen & Art Stylus
Professional artists and illustrators rely on precision drawing styli with pressure sensitivity and tilt detection. The 500943’s stable 3.7V discharge and low impedance (≤200mΩ) ensure consistent power to the pen’s pressure sensor and BLE chip, maintaining accurate pressure level detection throughout the session. Compatible with drawing tablet pens from brands including Wacom, Huion, XP-Pen, and OEM tablet manufacturers.
Drawing Pen Battery Digital Art Stylus Battery Wacom Compatible Battery Pressure Pen Battery
📝 E-Paper Writing Device & Digital Notepad
E-ink and e-paper writing devices (such as Kindle Scribe, reMarkable, Boox stylus, and similar smart notepads) use ultra-slim rechargeable stylus batteries. The 500943’s 185mAh capacity and slim form factor make it ideal for these applications. The low self-discharge rate (≤3%/month) ensures the pen holds charge during storage periods, and the wide temperature range supports use in office, educational, and outdoor environments.
E-Paper Pen Battery Digital Notepad Battery Smart Notebook Battery E-Ink Stylus Battery
🏫 Interactive Whiteboard Pen & Classroom Stylus
Interactive whiteboard systems and electronic classroom presentation pens require compact, rechargeable batteries that fit slim pen form factors. The 500943’s high cycle life (≥500 cycles) and wide temperature tolerance make it ideal for shared educational devices subject to frequent recharging and varying indoor environments. Suitable for SMART Board pens, Promethean ActivPen replacements, and generic IWB stylus OEM production.
Whiteboard Pen Battery IWB Stylus Battery Classroom Pen Battery Smart Board Battery
💼 Signature Pad & POS Signing Stylus
Electronic signature pads and POS terminal signing pens use compact rechargeable styli for customer signature capture. The 500943’s 185mAh capacity supports all-day signing operations with minimal recharge cycles. Its robust ≥500 cycle life is critical for high-turnover retail, banking, and logistics environments where signature pads are used hundreds of times daily.
Signature Pad Battery POS Stylus Battery Electronic Signing Battery Retail Pen Battery
🏥 Medical Tablet Stylus & Clinical Input Device
Medical-grade tablets and clinical documentation systems use sealed, rechargeable stylus pens to prevent contamination from disposable stylus tips. The 500943’s wide temperature range (-20°C to +60°C) and long cycle life support demanding healthcare environments. The compact form enables sleek, easily sterilizable pen designs for EMR/EHR data entry, medical imaging annotation, and patient consultation documentation.
Medical Stylus Battery Clinical Tablet Pen Battery Healthcare Input Battery EMR Pen Battery
🎓 Smart Pen & Handwriting Digitizer
Smart pens that digitize handwriting in real time (such as Moleskine Pen+, Livescribe, NeoLAB Pen, and similar devices) require ultra-compact batteries that fit within pen-sized housings. The 500943’s combination of slim profile, 185mAh capacity, and ≥500 cycle longevity makes it the preferred choice for premium smart pen OEM manufacturers seeking reliable, long-service battery solutions.
Smart Pen Battery Handwriting Digitizer Battery Digital Ink Pen Battery NFC Pen Battery
🔬 Industrial Handheld Input & Field Data Pen
Rugged stylus pens for industrial touchscreen devices, field data collection tablets, and inspection input tools benefit from the 500943’s wide discharge temperature range (-20°C to +60°C). Whether used on a cold construction site or in a warm factory floor environment, the battery maintains reliable performance. The slim form integrates into ruggedized pen housings designed to withstand drops, vibration, and harsh conditions.
Industrial Stylus Battery Rugged Pen Battery Field Data Pen Battery Inspection Input Battery
Compatible Device Categories
| Device | Type |
|---|---|
| ✏️ Active Stylus | Capacitive / EMR Pen |
| 🖊️ Drawing Pen | Art / Pressure Stylus |
| 📝 E-Paper Pen | Digital Notepad |
| 🏫 Whiteboard Pen | IWB / Classroom |
| 💼 Signature Stylus | POS / Signing Pad |
| 🏥 Medical Pen | Clinical / EMR Input |
| 🎓 Smart Pen | Handwriting Digitizer |
| 🔬 Industrial Input | Rugged Field Pen |
| 📱 Tablet Stylus | iPad / Android Pen |
| 💻 Laptop Pen | 2-in-1 / Surface Pen |
| 🖥️ Touchscreen Pen | Interactive Display |
| 📋 Annotation Pen | PDF / Document Tool |
Why Choose ASOL Li-Po Batteries?
ASOL Battery (Shenzhen Asol Battery Tech Co., Ltd.) specializes in ultra-compact lithium polymer batteries for precision electronics including stylus pens, wearable devices, and miniature IoT applications. The 500943 185mAh cell is manufactured with strict dimensional tolerances critical for slim pen barrel integration, undergoing capacity grading, cycle life validation, impedance screening, and dimensional QC at every production stage.
Customization options include custom wire length and gauge, connector type (JST 1.0, ZH 1.5, custom), PCM/PTC protection integration, custom labeling, and private-label packaging. Our engineering team provides application-specific technical consultation to ensure optimal battery integration into your stylus or precision device design.
Wholesale Pricing
| Order Quantity | Unit Price | Discount |
|---|---|---|
| 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 | Best Price |
Contact ASOL Battery
- 📧 Email: info@asol-battery.com
- 📱 WhatsApp: +86 15779858703
- 🌐 Website: www.asol-battery.com
- ⏰ Response: Within 24 Hours on Working Days
