ASOL 18650 3P 3.7V 7800mAh Cylindrical Li-ion Battery Pack

Cylindrical Li-ion

The ASOL 18650-3P is a high-capacity 3.7V 7800mAh cylindrical Li-ion battery pack (28.86Wh) in a 3P parallel cylindrical-cell configuration, with load-balanced cells for low internal resistance and extended cycle life. Purpose-built for portable thermal printers, industrial PDA/barcode scanners, portable medical devices and mini UPS backup. Full OEM & ODM - connector, wire gauge, PCM threshold and label all configurable.

Key SpecPrecise Specification
Model No.ASOL 18650-3P
Core Electrical Specs3.7V · 7800mAh · 28.86Wh
Cell Configuration3P parallel cylindrical Li-ion cells
Discharge Performance7.8A (1C) max continuous · 3.0V cut-off
Protection SystemMulti-layer PCM (over-charge / over-discharge / over-current / short-circuit / temperature)
Cycle Life≥500 cycles (to 80% capacity)
Pack Size & WeightCompact cylindrical pack · ~145 g (approx.)
Standard ConnectorJST / Molex / Micro-USB / USB-C / bare leads, customizable
Compliance & CertificationsAvailable on request

Available for OEM / B2B Orders

This battery model is available for OEM and B2B inquiries. Contact us with your required quantity and application for pricing and sample availability.

Need a Different Specification?

Connector type, wire length, labeling, PCM/BMS, voltage, capacity and pack configuration can be adjusted according to project requirements.

If this model does not match your requirements, send us your target voltage, capacity, configuration and application, and we can evaluate another suitable cylindrical battery solution.

Est. 2020 50+ Countries 2 Facilities OEM & ODMProject Review
Cylindrical Li-ionRechargeable lithium
Protection optionsReviewed by project requirement
OEM / ODMFactory-direct maker
Custom-builtCapacity · voltage · connector
WorldwideShipping & support

ASOL 18650-3P 3.7V 7800mAh cylindrical Li-ion battery infographic — portable thermal printers and industrial PDAs

The ASOL 18650-3P uses three cylindrical Li-ion cells in a 3-parallel (3P) configuration to deliver 7800mAh at a stable 3.7V. This pack format is suitable for thermal printers, industrial handhelds, medical monitors and backup systems requiring a rechargeable battery pack.

For B2B projects, connector, wire, protection-circuit, packaging and labeling requirements can be evaluated according to the finished device and project specification.


Key Highlights

  • 7800mAh / 28.86Wh — rated capacity and energy; actual runtime depends on the device load profile and operating conditions.
  • 3P Parallel Configuration — three cylindrical cells connected in parallel.
  • 3.7V Nominal Output — confirm charging method, system voltage compatibility and load requirements during project review.
  • Pack Integration — assess enclosure space, mounting method and wire routing against the finished pack dimensions.
  • Protection Options — protection circuit options are available depending on the required battery configuration.
  • Project Review — connector, wire, packaging and labeling requirements can be evaluated according to the project specification.

Why This Battery?

Your Problem ASOL18650-3P Solution
Thermal printer has a defined duty cycle and runtime requirement? 7800mAh / 28.86Wh rated capacity; actual printer runtime depends on duty cycle, temperature and load.
Industrial PDA or barcode scanner has a defined duty cycle and runtime requirement? 3P parallel configuration should be evaluated against the scanner load profile, charging method and required runtime.
Portable medical equipment requires a project-specific battery review? Protection and pack configuration should be reviewed against the device safety, performance and validation requirements.
Mini UPS battery self-discharges and is dead when a power outage finally hits? Standby use — storage and standby performance should be validated for the selected cell, pack design and operating conditions
Generic battery pack doesn’t fit your device’s connector or power requirements? Project configuration review — connector, wire, protection-circuit and label requirements are confirmed against the finished device.

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 / 28.86Wh Rated Energy — use the published capacity as a starting point; actual runtime depends on the device load profile and operating conditions.
  • 3P Parallel Configuration — three cylindrical cells connected in parallel. Confirm the required current, thermal conditions and expected runtime for the finished device.
  • 3.7V Nominal Output — confirm charging method, system voltage compatibility and load requirements during project review.
  • Cylindrical Pack Layout — assess the final enclosure space, mounting method and wire routing against the finished pack dimensions.
  • Protection-Circuit Review — required protection functions and thresholds are confirmed against the selected cell, load profile and finished-device requirements.
  • Standby-use review — storage and standby performance depend on the selected cell, pack design, storage conditions and system load. Confirm the required backup performance during project review.
  • Project-matched OEM Solution — Connector, wire, protection, cell arrangement, wrap and label requirements are reviewed against the project specification. Sample availability and timing are confirmed after technical review.

Applications

Where the 18650 3P is used

Thermal Printers

Mobile receipt and label printers; runtime depends on printer duty cycle, temperature and load.

Barcode Scanners

Industrial PDAs and RFID handhelds; runtime should be evaluated against the device load profile.

Medical Devices

Patient monitors & portable diagnostics with redundant 3P cells.

Mini UPS Backup

Router and CCTV backup; required backup time should be evaluated against the system load profile.

ASOL Battery — Factory-Direct OEM Battery Pack Manufacturer

ASOL Battery supports B2B cylindrical battery-pack projects with configuration and technical requirements reviewed for the finished device.

Project quality review:

  • Cell selection and matching requirements confirmed for the project
  • Assembly and inspection requirements agreed before order release
  • Protection-circuit requirements confirmed against the finished-device load profile
  • Documentation requirements reviewed for the destination market

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 Evaluation Support — Sample availability, quantity and timing are confirmed after project review and material readiness are checked.

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 is charging suitability confirmed?

Confirm the charging method, required current and finished-device electrical requirements during project review.

Can a protection circuit be evaluated?

Protection circuit options can be evaluated according to the selected cell, load profile and finished-device requirements.

Can documentation requirements be reviewed?

Documentation requirements can be reviewed according to the selected configuration and destination market.


Contact & Ordering

Channel Details
Email info@asolbattery.com
WhatsApp +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 Confirmed after project review, material readiness and order requirements are agreed.

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

Application and RFQ guide

How to specify ASOL 18650 3P 3.7V 7800mAh Cylindrical Li-ion Battery Pack for your project

This configuration is relevant to single-voltage high-runtime electronics and compact power products. Treat the published table as a starting specification; final pack design should be confirmed against the actual load, charger, mechanical space and destination requirements.

Key engineering checks

Confirm load duration, charge-current limit, enclosure dimensions and protection-board configuration before sampling. This gives the engineering team the information needed to assess the cell arrangement, protection circuit, wires and connector.

Questions for an RFQ

Share expected order quantity, dimensional drawing, target runtime, connector photo or pinout, charging method and any required test or shipping documentation. A project quotation can then be matched to the finished equipment rather than a generic pack.

Project Inquiry

Send Us Your Battery Requirements

For a faster and more accurate quotation, please provide the key details below.
ASOL will recommend a suitable lithium battery solution based on your application, voltage, capacity, size and connector requirements.

Target Voltage3.7V, 7.4V, 12.8V, 24V, 48V or custom voltage
CapacityRequired Ah / Wh or expected runtime
Size / Dimension RequirementBattery size, device space or housing limit
ApplicationDevice type, working current and usage environment
QuantityEligible sample project, pilot run or batch production
Connector / Wire RequirementConnector model, wire length and polarity
OEM / Branding RequestLogo, label, casing or packaging request
Destination CountryShipping country and required documents

ASOL will review your requirements and reply with a suitable battery solution.

Shenzhen Asol Battery Tech Co., Ltd. (ASOL)

ASOL manufactures and supplies lithium batteries and battery systems for B2B applications, including RV LiFePO4 batteries, cylindrical lithium-ion cells and packs, lithium polymer batteries, lead-acid replacement batteries and energy storage systems. Additional models and OEM/ODM configurations are available for different application requirements.

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ASOL manufactures and supplies lithium batteries and battery systems for B2B applications, with additional models and OEM/ODM support available for different requirements.

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