The ASOL 21700-4S1P delivers 14.76V nominal voltage and 4800mAh capacity (70.85Wh) through a proven 4-series, 1-parallel (4S1P) 21700 cell architecture. The larger 21700 cell format delivers approximately 35% more energy density compared to standard 18650 cells — translating to longer runtime and fewer battery swaps in the field.
Every pack integrates a multi-layer BMS protection board guarding against overcharge, over-discharge, overcurrent, and short circuit — ensuring safe operation even under heavy load or extreme temperatures.
Backed by ASOLENERGY TECHNOLOGY’s production capability, each unit undergoes full charge/discharge cycle testing, voltage matching, and BMS function verification before shipment. From cell grading to final packing, quality is built into every step.
Specifications
| Parameter | Details |
|---|---|
| Chemistry | Li-ion (21700 cylindrical cells) |
| Model | 21700-4S1P |
| Nominal Voltage | 14.76V |
| Capacity | 4800mAh |
| Energy | 70.85Wh |
| Charging Voltage | 16.8V |
| Configuration | 4S1P (4 Series, 1 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. 72 × 37 × 37 mm (excluding wires & connector) |
| Weight | Approx. 185g |
| Manufacturer | ASOLENERGY TECHNOLOGY (ASOL) |
Applications
Where the 21700 4S1P is used
PDA scanners & data terminals for long work shifts.
Service robots and guided vehicles with stable 14.8V output.
Patient monitors and infusion pumps needing long cycle life.
Wireless cameras and mobile monitoring power supplies.
Field meters, radios and emergency gear for outdoor use.
Cleaning robots, scrubbers and industrial cleaning machines.
What Sets Us Apart
- Factory-Direct Pricing — Eliminate distributor markups. Competitive rates directly from the source, with transparent quoting for any volume.
- Full OEM & ODM Flexibility — Connector type, wire gauge & length, heat-shrink or plastic housing, custom labeling, and branded packaging — all configurable to your specs.
- Built-In BMS Safety — Multi-layer electronic protection ensures every pack operates safely, reducing field failures and warranty claims.
- 500+ Cycle Durability — Grade-A 21700 cells with matched internal resistance deliver consistent capacity retention across hundreds of charge cycles.
- Rapid Sample Delivery — Custom prototype samples ready in 5-7 business days for fit, performance, and compatibility validation.
- Quality checks — Inspection requirements and acceptance criteria are confirmed for each project before order release.
Packaging & Shipping
| Item | Details |
|---|---|
| Individual Packaging | Anti-static bag + foam cushion inside individual box |
| Box Quantity | 20 pcs / carton (customizable) |
| Carton Dimensions | Approx. 42 × 28 × 22 cm (subject to final packing) |
| Carton Weight | Approx. 9-1 kg |
| Shipping Options | Express (DHL / FedEx / UPS), Air freight, Sea freight |
| Shipping Terms | EXW, FOB, CIF, DDP available |
| Certifications | CE, RoHS, UN38.3, MSDS (available upon request) |
Frequently Asked Questions
Can I customize the connector and wire specifications?
Yes. We support JST, Molex, JST-PH, XT60, and other standard connectors. Wire gauge, length, and polarity can all be customized to match your device's requirements.
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?
Yes. Our technical team can provide pinout diagrams, charge/discharge characteristic curves, mechanical dimension drawings, and BMS communication protocol details to accelerate your integration.
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. | Bulk production: 15-25 business days
Ready to power your next product? Send us your application details, connector spec, 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 →
