The ASOL 18650-3P combines three premium cylindrical Li-ion cells in a 3-parallel (3P) configuration to deliver 7800mAh at a stable 3.7V — the highest single-cell capacity in its class. Engineered for professional equipment that cannot afford battery failure mid-operation, this pack powers thermal printers through peak business hours, industrial handhelds through full logistics shifts, medical monitors through patient transport, and backup systems through extended power outages.
As a factory-direct OEM battery pack manufacturer, ASOL provides fully customizable connector, PCM, packaging, and labeling solutions. Every pack undergoes capacity grading, IR screening, PCM functional verification, and full safety testing — with batch test reports included.
Key Highlights
- 7800mAh / 28.86Wh — 2.6× the runtime of standard 3000mAh printer/scanner batteries
- 3P Load-Balanced — parallel cells share current, reduce stress, extend pack lifespan
- 3.7V Universal — native voltage for thermal print heads, scan engines, RFID modules, ARM SoCs
- Cylindrical Cell — thinner and lighter than 18650 cylindrical cells; fits slim enclosures
- Multi-Layer PCM — overcharge/over-discharge/over-current/short-circuit/temperature protection
- Custom BOM Available — connectors, wire gauge, PCM thresholds, packaging to your spec
- ≥500 Cycle Life — years of reliable daily operation in commercial field environments
Why This Battery?
| Your Problem | ASOL18650-3P Solution |
|---|---|
| Thermal printer dies halfway through a restaurant dinner rush or warehouse picking shift? | 7800mAh / 28.86Wh prints hundreds of labels/receipts per charge — entire peak periods covered, zero battery swaps |
| Industrial PDA or barcode scanner can’t survive a full 10-hour logistics/warehouse shift? | 3P load-balanced cells deliver rock-stable 3.7V through laser scan engine bursts and RFID activation spikes — no midday recharges |
| Portable medical monitor loses power during critical patient transport between wards? | Multi-layer PCM + 3P redundant cell design — if one cell degrades, the other two maintain output; clinical fault tolerance built-in |
| Mini UPS battery self-discharges and is dead when a power outage finally hits? | Ultra-low self-discharge cylindrical Li-ion cell chemistry — 85%+ charge retained after 3 months in standby; always ready when the grid fails |
| Generic battery pack doesn’t fit your device’s connector or power requirements? | Full custom BOM — choose JST, Molex, Micro-USB, USB-C, bare leads; wire length/gauge; PCM thresholds; custom labeling |
Technical Specifications
| Parameter | Value |
|---|---|
| Model | 18650-3P |
| Type | Cylindrical Li-ion Battery Pack — 3P Configuration |
| Configuration | 3 Parallel |
| Nominal Voltage | 3.7V |
| Capacity | 7800mAh (0.2C discharge) |
| Energy | 28.86Wh |
| Charge Voltage | 4.2V CC/CV |
| Cut-off Voltage | 3.0V |
| Max Charge Current | 3.9A (0.5C) |
| Max Continuous Discharge | 7.8A (1C) |
| Cycle Life | ≥500 cycles (to 80% capacity) |
| Charge Temperature | 0°C ~ +45°C |
| Discharge Temperature | -20°C ~ +60°C |
| Protection | PCM — overcharge, over-discharge, over-current, short-circuit, temperature |
| Cell Chemistry | cylindrical Li-ion cell |
| Connector Options | JST, Molex, Micro-USB, USB-C, bare leads (custom spec available) |
Features in Detail
- 7800mAh Industrial-Grade Capacity — 28.86Wh in a compact cylindrical lithium pack. Powers mobile thermal printers (MUNBYN, Phomemo, Nelko, JADENS-compatible), industrial PDAs (Zebra, Honeywell, Urovo, CHAINWAY-compatible), and portable medical monitors through full operational shifts. Eliminates mid-day battery anxiety for every device on your fleet.
- 3P Load-Balanced Architecture — Three matched cylindrical lithium-ion cells connected in parallel. Each cell operates at one-third of total load current — dramatically reducing internal resistance heating, balancing degradation rates, and extending overall pack cycle life beyond single-cell designs. Critical for devices pulling sustained 1-3A during active operation.
- 3.7V Native Voltage — Zero Conversion — Standard single-cell lithium voltage. Directly powers: thermal print head heating elements, barcode/QR laser scan engines, RFID UHF reader front-ends, ARM Cortex / Android SoC boards, medical sensor AFE circuits, and DC-DC boost modules for 5V/9V/12V UPS output. No intermediate regulation = less heat, higher efficiency.
- Cylindrical Cell — Slim, Light, Adaptable — 40% thinner and 25% lighter than equivalent 18650 cylindrical packs. Conforms to thin printer housings, curved PDA grip contours, compact medical device enclosures, and wall-mount mini UPS chassis. Maximizes usable internal volume in space-constrained industrial designs.
- Multi-Layer PCM — Five-Way Protection — Factory-installed protection circuit module continuously monitors: (1) overcharge above 4.25V, (2) over-discharge below 2.7V, (3) over-current above 10A, (4) short-circuit detection under 100ms, (5) temperature cut-off at 75°C. Essential safety for devices handled daily by untrained end-users, warehouse operators, and healthcare staff.
- Ultra-Low Self-Discharge — Premium cylindrical Li-ion cell chemistry with ≥% monthly self-discharge rate. Holds 85%+ charge after 3 months of storage or standby. Critical for emergency backup applications (router UPS, IP camera UPS, security system backup) where the battery must deliver full power instantly — not a dead cell when the outage hits.
- Fully Customizable OEM Solution — Specify: connector type and gender, wire gauge (22-26 AWG) and length (50-200mm), PCM over-current threshold (5A-12A), cell arrangement (flat/stacked/L-shaped), Kapton tape wrap or PVC shrink sleeve, custom label/branding. We build to your exact BOM — production-ready samples in 5-7 business days.
Applications
Where the 18650 3P is used
Mobile receipt & label printers — 150-300+ prints per charge.
Industrial PDAs & RFID handhelds — 8-12h scanning shifts.
Patient monitors & portable diagnostics with redundant 3P cells.
Router & CCTV backup — bridges 3-5h grid outages.
ASOL Battery — Factory-Direct OEM Battery Pack Manufacturer
We are not a distributor or trading company. ASOL Battery designs and manufactures cylindrical Li-ion cells and assembled battery packs in-house — from electrode coating to finished pack testing. This vertical integration means consistent quality, full traceability, and competitive factory-direct pricing at every order volume.
Quality assurance on every ASOL 18650-3P pack:
- Capacity grading and matching (±1% tolerance within each 3P pack)
- Cell consistency screening before pack assembly
- Full PCM functional verification (all five protection modes tested)
- 100% visual inspection and dimensional check
- Batch certificate of compliance with shipment
What you get working with ASOL:
- Factory-Direct Pricing — no middlemen, no distributor markup, competitive at every OEM quantity
- Custom BOM to Your Spec — connector, wire, PCM, packaging, labeling — your exact requirements
- Consistent Batch Quality — matched cells, sequential lot traceability, test data per shipment
- Engineering Support — pre-sales integration advice and post-sales technical support via email and WhatsApp
- Global Logistics — fast shipping to North America, Europe, Southeast Asia, and the Middle East
- Sample Service — 1-3 custom samples within 5-7 business days for evaluation before bulk order
Frequently Asked Questions
What devices is the 18650-3P compatible with?
Any 3.7V cylindrical Li-ion device with standard charging (4.2V CC/CV) protocol. We customize connectors to match your specific device — JST, Molex, Micro-USB, USB-C, or bare leads. Tell us your existing connector model and we match it.
What's the minimum order quantity (MOQ)?
50 pieces for standard configurations; 100 pieces for custom BOM builds. Contact us for sample pricing.
How long does a full charge take?
Approximately 2.5 hours at 0.5C (3.9A) with a standard 4.2V CC/CV charger.
Does it come with a protection circuit?
Yes. Every pack includes a factory-installed multi-layer PCM covering overcharge, over-discharge, over-current, short-circuit, and temperature protection.
Can you provide UN38.3/MSDS reports?
Yes. We provide full UN38.3 test reports, MSDS, and GB 31241-2022 compliance documentation with every shipment.
Contact & Ordering
| Channel | Details |
|---|---|
| info@asolbattery.com | |
| +86 157 7985 8703 | |
| Website | www.asolbattery.com |
| Office Hours | Mon-Sat, 9:00-8:00 (GMT+8) |
| Sample Lead Time | 5-7 business days (custom BOM) |
| Bulk Lead Time | 15-25 business days (depending on quantity and customization) |
Request a quote today — tell us your application, connector requirement, and target quantity for factory-direct pricing.
Need a different size or capacity? Explore ASOL’s full cylindrical battery pack range →
