The ASOL 18650-4S2P is a professional-grade rechargeable battery pack delivering 14.6V nominal voltage and 5000mAh capacity (73.0Wh). Its 4-series, 2-parallel (4S2P) architecture doubles the capacity of standard single-row 4S packs, providing significantly longer operating time for high-drain equipment — fewer battery changes, less downtime, higher productivity.
Each pack is equipped with an integrated BMS protection circuit offering comprehensive safeguards against overcharge, over-discharge, overcurrent, and short circuit. This ensures consistent performance across a wide temperature range (0°C to +60°C) and under demanding load conditions.
Produced by ASOLENERGY TECHNOLOGY under the ASOL brand, every unit undergoes a strict quality control process: cell voltage matching, full charge/discharge cycle testing, and BMS functionality verification — all before it leaves the production line.
Specifications
| Parameter | Details |
|---|---|
| Chemistry | Li-ion (18650 cylindrical cells) |
| Model | 18650-4S2P |
| Nominal Voltage | 14.6V |
| Capacity | 5000mAh |
| Energy | 73.0Wh |
| Charging Voltage | 16.8V |
| Configuration | 4S2P (4 Series, 2 Parallel) |
| BMS Protection | Overcharge / Over-discharge / Overcurrent / Short circuit |
| Standard Connector | JST (custom connectors available) |
| Cycle Life | ≥500 cycles @ 80% capacity retention |
| Operating Temperature | 0°C to +60°C (charge: 0°C to +45°C) |
| Dimensions | Approx. 110 × 55 × 22 mm (excluding wires & connector) |
| Weight | Approx. 280g |
| Manufacturer | ASOLENERGY TECHNOLOGY (ASOL) |
Applications
Where the 18650 4S2P is used
Patient monitors, infusion pumps & mobile diagnostic gear.
Rugged handheld terminals, scanners & test instruments.
Wireless cameras, alarms & remote monitoring systems.
Inspection robots, service bots & guided vehicles.
Field meters, emergency kits & portable comms gear.
What Sets Us Apart
- Factory-Direct Pricing — No distributor markups. Competitive B2B rates directly from the manufacturer, with transparent quoting for any order size.
- Full OEM & ODM Flexibility — Connector type, wire gauge & length, heat-shrink or plastic housing, custom labeling, and branded packaging — all configurable to your specs.
- Integrated BMS Safety — Multi-layer electronic protection against overcharge, over-discharge, overcurrent, and short circuit. Reduces field failures and warranty returns.
- Cycle-life evaluation — Refer to the product specification and confirm suitability against the finished pack configuration and operating conditions.
- Sample Evaluation Support — Sample availability and timing are confirmed after project review, material readiness and technical requirements are agreed.
- 100% Outgoing Inspection — Every pack is individually tested for voltage accuracy, discharge capacity, and BMS function before shipment.
Packaging & Shipping
| Item | Details |
|---|---|
| Packaging | Export-safe battery packaging; packing configuration depends on model and quantity |
| Packing Quantity | Confirmed according to battery model and order quantity |
| Shipping | Shipping method is confirmed according to battery type, quantity, destination and applicable transport requirements |
| Trade Terms | EXW / FOB / CIF / DDP subject to order and destination |
| Lithium Battery Documents | UN38.3 and relevant lithium battery shipping documentation available as applicable |
Frequently Asked Questions
Can I customize the connector and wire specifications?
Yes. We support JST, Molex, JST-PH, XT60, and other industry-standard connectors. Wire gauge, length, and polarity are all customizable to match your device interface.
What is 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.
Do you provide engineering support for device integration?
Absolutely. Our engineering team can supply pinout diagrams, charge/discharge characteristic curves, mechanical dimension drawings (2D/3D), and BMS communication protocol documentation.
What certifications are available?
Certification and test-document requirements depend on the selected cell, pack configuration and destination market. Please confirm requirements during project review.
Contact Us
| Channel | Information |
|---|---|
| info@asolbattery.com | |
| +86 157 7985 8703 | |
| Website | www.asolbattery.com |
| Response Time | Within 24 hours on working days |
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. | Production timing: Confirmed after project review, material readiness and order requirements are agreed.
Need a reliable power solution for your equipment? Send us your application scenario, connector requirements, and target quantity — we’ll respond within 24 hours with a factory-direct quote.
Need a different size or capacity? Explore ASOL’s full cylindrical battery range →
