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)?
MOQ is confirmed after specification review. Sample evaluation may be available for selected cylindrical and lithium polymer battery projects, subject to specification review and product availability. Sample freight is paid by the customer.
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 Policy | Sample evaluation may be available for selected cylindrical and lithium polymer battery projects, subject to specification review and product availability. Sample freight is paid by the customer. |
| 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 →
