Power your portable printing and scanning fleet with the ASOL 18650-2S4P — a purpose-built 7.4V 8000mAh 59.2Wh Polymer Lithium-Ion rechargeable battery pack in a 2-series 4-parallel configuration. Engineered first and foremost for portable thermal printers, this pack delivers the high voltage, massive capacity, and all-day runtime that mobile receipt, label, and ticket printers demand in the field.
Why This Battery?
| Problem | 18650-2S4P Solves It |
|---|---|
| Portable thermal printer dies mid-shift during peak orders? | 8000mAh / 59.2Wh — prints hundreds of receipts/labels on a single charge |
| Single-cell 3.7V can’t power thermal print heads and motors? | 7.4V native output — cleanly drives print head heating elements and paper-feed motors |
| Barcode scanner or industrial PDA runs out before end of shift? | 8-12 hour continuous operation — covers full warehouse and logistics shifts |
| Device needs reliable field power with zero downtime? | 2S4P load-balanced architecture — redundant parallel cells prevent single-point failure |
| Bulk supplier with inconsistent quality for commercial fleets? | ASOL factory-direct — batch traceable, GB 31241-2022 certified cells |
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 18650-2S4P |
| Type | Polymer Lithium-Ion Battery Pack (2S4P) |
| Configuration | 2 Series × 4 Parallel |
| Nominal Voltage | 7.4V |
| Capacity | 8000mAh (@ 0.2C) |
| Energy | 59.2Wh |
| Charge Voltage | 8.4V CC/CV |
| Cut-off Voltage | 6.0V (3.0V per cell) |
| Max Charge Current | 4.0A (0.5C) |
| Max Continuous Discharge | 8.0A (1C) |
| Cycle Life | ≥ 500 cycles |
| Charge Temperature | 0°C ~ +45°C |
| Discharge Temperature | -20°C ~ +60°C |
| Protection | PCM (overcharge / over-discharge / over-current / short-circuit / temperature) |
| Certification | GB 31241-2022 |
Features
- 7.4V Native Output — Directly drives thermal print head heating elements and paper-feed stepper motors without voltage conversion losses. Clean power rail for MCU + Bluetooth/Wi-Fi module + motor driver on one supply
- 8000mAh All-Day Capacity — 59.2Wh energy reserve means a single charge covers 8-12 hour shifts for printers, scanners, and PDAs. Eliminates mid-shift battery swaps and charging station bottlenecks
- 2S4P Load-Balanced Architecture — Four parallel cell groups share discharge current evenly, reducing per-cell stress and heat buildup. Redundant design means one weak cell won’t kill the pack — critical for business-critical mobile equipment
- Polymer Li-Ion Construction — Lighter and more form-flexible than cylindrical 18650 packs. Adapts to slim printer and scanner enclosures without wasted volume
- Built-in Multi-Layer PCM — Factory-installed protection against overcharge, over-discharge, over-current, short-circuit, and temperature extremes. Safe enough for devices carried and operated by end-users all day
- GB 31241-2022 Certified — Compliant with China’s latest safety standard for portable lithium-ion cells and batteries. Export-ready certification recognized by international buyers
- Customizable Build — Choose connector type (XT30, XT60, JST, Molex, bare leads), wire gauge, packaging, and PCM trip thresholds to match your device’s power input requirements exactly
Application Fit Guide
Portable Thermal Printers
The 18650-2S4P is purpose-built for mobile receipt printers, label printers, ticket printers, and POS peripherals used in restaurants, retail, logistics, and field service. 7.4V directly powers thermal print head elements and DC paper-feed motors — no boost converter efficiency loss. 8000mAh capacity prints hundreds of receipts or labels on a single charge, lasting through peak business hours without battery anxiety. The 2S4P architecture handles the sharp current spikes that occur when the print head energizes, preventing brownout resets of the onboard MCU and Bluetooth module.
Industrial PDA & Barcode Scanners
Warehouse inventory terminals, retail POS scanners, RFID handhelds, and logistics data collectors. 7.4V output pairs directly with industrial-grade ARM processors and 1D/2D scan engines. 8000mAh covers 8-12 hours of continuous scanning with the screen on — essential for full-shift warehouse and logistics operations where downtime means delayed shipments.
Portable Power Stations
Compact solar generators, camping power banks, and emergency backup units. The 7.4V rail interfaces cleanly with DC-DC converters to produce 5V USB, 12V accessory, and 24V system outputs. One pack delivers enough energy to charge a smartphone 4-6 times or run a 5W LED lamp for 10-12 hours.
Medical Portable Devices
Portable patient monitors, infusion pumps, CPAP travel units, and diagnostic handhelds. Redundant parallel cell groups provide inherent fault tolerance — critical when device failure has clinical consequences. GB 31241-2022 certification meets the compliance baseline required by medical device OEMs.
Educational Robots & RC Models
RoboMaster, VEX, FTC competition robots, and 1/10 scale RC cars/boats. 2S 7.4V is the standard competition voltage for small-to-medium robotics platforms. 8000mAh powers through an entire match day without battery changes. 8A continuous discharge handles motor startup surges cleanly.
Consumer Drones
Mid-size consumer UAVs and FPV drones. Feeds flight controllers, GPS modules, and brushless motor ESCs with stable 7.4V power. High energy density for 20-35 minutes of flight time. A strong secondary market, though thermal printers and industrial handhelds drive the primary volume.
ASOL Battery — Your Direct Polymer Battery Pack Manufacturer
Skip the middlemen. ASOL Battery manufactures polymer lithium-ion battery packs in-house, with full traceability from cell sourcing to finished assembly. Every 18650-2S4P pack undergoes capacity grading, internal resistance matching, PCM functional testing, and full safety validation before shipment. Whether you need 100 packs for a printer fleet or 10,000 for a product line, we deliver consistent quality at factory-direct pricing.
What you get:
- Factory-direct pricing with no distributor markup
- Custom connectors, PCM configuration, and packaging to your exact BOM
- Consistent batch quality with test reports and certificate of compliance per shipment
- Responsive engineering support via email and WhatsApp for integration and custom design questions
- GB 31241-2022 certified cells for international market compliance
Contact
- Email: info@asol-battery.com
- WhatsApp: +86 157 7985 8703
- Website: www.asol-battery.com
