The ASOL789945-3S is a premium Li-Polymer battery pack using three flat 789945 soft pouch cells in 3S1P series configuration, delivering a stable 11.1V nominal voltage and 1700mAh capacity (18.87Wh). The 789945 Li-Po cell format (7.8mm thick × 99mm wide × 45mm long) provides an outstanding balance of energy density, ultra-light weight, and compact footprint — the preferred choice for performance-driven RC and drone applications where every gram of weight savings translates directly into longer flight times, faster acceleration, and sharper handling.
11.1V (3S) is one of the most widely adopted voltage standards in the FPV drone, RC aircraft, and high-performance RC vehicle markets. With 1700mAh capacity, the ASOL789945-3S delivers competitive runtime: 8–15 minutes of aggressive FPV racing flight, 15–25 minutes of steady RC airplane cruising, and 15–30 minutes of continuous high-speed RC car operation. The lightweight Li-Po construction keeps total aircraft or vehicle weight low, which means less strain on motors and ESCs, cooler operating temperatures, and more responsive control.
Each pack incorporates a built-in PCB protection circuit guarding against overcharge, over-discharge, overcurrent, and short circuit. Every unit is manufactured at our quality-controlled facility and passes 100% outgoing QC: open-circuit voltage verification, capacity discharge testing, and protection circuit function check before shipment. Grade-A Li-Po cells are voltage-matched within ±10mV to ensure stable series operation and uniform cycle aging.
Technical Specifications
| Parameter | Value |
|---|---|
| Chemistry | Li-Polymer (soft pouch cell, 789945 format) |
| Model | ASOL789945-3S |
| Configuration | 3S1P (3 Series, 1 Parallel) |
| Nominal Voltage | 11.1V |
| Capacity | 1700mAh |
| Energy | 18.87Wh |
| Charging Voltage | 12.6V (CC/CV) |
| Standard Discharge Current | 0.2C (340mA) |
| Max Continuous Discharge | 1C–3C (1.7A–5.1A) |
| Burst Discharge (10s) | 5C (8.5A) |
| Internal Resistance | ≤100mΩ (per pack) |
| Protection Circuit | PCB: overcharge / over-discharge / overcurrent / short circuit (BMS with 3S balance charging optional) |
| Standard Connector | XT60 (custom: XT30, JST-PH 2.0, JST-XH, Deans T-plug, EC3, Molex, etc.) |
| Balance Connector | JST-XH 4-pin (for 3S balance charging, optional) |
| Cycle Life | ≥500 cycles @ 80% capacity retention (0.5C, 25°C) |
| Operating Temperature | −20°C to +60°C (charge: 0°C to +45°C) |
| Storage Temperature | −20°C to +45°C (store at 50–60% SOC for long life) |
| Cell Dimensions | 7.8 × 99 × 45 mm (T × W × L per cell) |
| Cell Dimensions | 7.8 × 99 × 45 mm (per cell, excluding wires & connector) |
| Weight | Approx. 100–120g |
| Certifications | CE, RoHS, UN38.3, MSDS |
| Shipping Class | UN38.3 — Class 9 Dangerous Goods (air & sea compliant) |
| Manufacturer | ASOLENERGY TECHNOLOGY (Dongguan, China) |
Available Connector Options
| Connector | Description | Best For |
|---|---|---|
| XT60 (Default) | Mid-size gold bullet | Drones & RC standard |
| XT30 | Micro gold bullet | Small drones & micro RC |
| JST-PH 2.0 | 2-pin, white connector | Consumer electronics |
| JST-XH | 4-pin | 3S balance charging |
| Deans T-Plug | RC high-current | 2S–6S RC applications |
| EC3 | Mid-current banana | RC cars & planes |
| Molex | Consumer electronics | IoT, small devices |
| Custom | Your specification | OEM/ODM projects (MOQ applies) |
Applications
Where the 789945-3S is used
3–5" quads & freestyle — ~8–15 min of aggressive flight.
Small/mid gliders & trainers — ~15–25 min cruising.
1/10 & 1/12 chassis — ~15–30 min continuous run.
STEM kits, AI cars & sensor platforms.
Why Choose Li-Polymer Over Cylindrical Li-ion Cells?
For FPV drones, RC aircraft, and high-performance RC vehicles, the choice of battery format directly impacts flight time, speed, and handling. Here is a side-by-side comparison:
| Feature | 789945-3S Li-Po (This Product) | 18650-3S Li-ion |
|---|---|---|
| Weight | ~110g (ultra-light) | ~180g |
| Thickness | ~28mm (slim) | ~38mm (4 cells side by side) |
| Discharge Rate | Up to 3C continuous, 5C burst | Typically 1C–2C |
| Shape | Flat — fits slim compartments | Cylindrical — needs round cell holders |
| Form Factor Flexibility | Custom dimensions possible | Fixed 18×65mm cell size |
| Capacity | 1700mAh | 2000–2600mAh (higher) |
| Energy | 18.87Wh | 22.2–28.9Wh (higher) |
| Cycle Life | ≥500 cycles | ≥500 cycles |
| Weight Advantage | 30–40% lighter | Heavier |
Choose 789945-3S Li-Po when: Weight, thin profile, high discharge rate, and form factor flexibility are critical — ideal for FPV racing drones, RC airplanes, and high-performance RC vehicles.
Choose 18650-3S when: Maximum capacity and longer runtime in a larger form factor are acceptable, and the mature cylindrical supply chain is a priority.
Why ASOL
Factory-direct, fully customizable
Connector, wire gauge, heat-shrink color, custom brand label, BMS & housing.
Integrated PCB against overcharge, over-discharge, overcurrent & short circuit.
Grade-A cells, voltage-matched ±10mV for stable, reliable performance.
Custom prototype samples in 5–7 business days before volume production.
Every unit tested for OCV, capacity & protection. Defect rate <0.3%.
UN38.3 Class 9 air & sea · DHL/FedEx/UPS · EXW/FOB/CIF/DDP.
Packaging & Shipping
| Item | Details |
|---|---|
| Individual Packaging | Anti-static bag + foam cushion inside individual box |
| Inner Box | 10 pcs / inner box |
| Carton | 50 pcs / carton (customizable) |
| Carton Dimensions | Approx. 40 × 30 × 25 cm (subject to final packing) |
| Carton Weight | Approx. 7–9 kg |
| Shipping Options | Express (DHL / FedEx / UPS), Air freight, Sea freight |
| Shipping Terms | EXW, FOB, CIF, DDP available |
| Dangerous Goods | UN38.3 certified — compliant for air and sea transport (Class 9) |
| Lead Time (Samples) | 5–7 business days after payment |
| Lead Time (Bulk) | 15–25 business days after sample confirmation |
| Payment Terms | T/T, PayPal, Western Union |
Frequently Asked Questions
Is the ASOL789945-3S compatible with my FPV racing drone?
The ASOL789945-3S outputs standard 11.1V (3S Li-Po) which is fully compatible with most 3S FPV racing drones, freestyle quads, and RC aircraft flight controllers and ESCs. The compact soft pouch cell design keeps weight low — critical for drone flight time and agility. We can supply XT60, XT30, JST, or custom connectors to match your drone's wiring harness.
What is the minimum order quantity (MOQ)?
Standard configurations start at 50 pcs. For fully custom designs (special connectors, custom housing, branded labeling, BMS customization), MOQ is 100–500 pcs depending on complexity. Sample orders of 1–10 pcs are welcome for evaluation — contact us to arrange.
Can I use this battery for high-speed RC cars or RC trucks?
Yes. The 11.1V 3S Li-Po format is one of the most popular voltages for high-performance RC cars, RC trucks, and RC buggies. 1700mAh provides competitive runtime while the lightweight Li-Po construction keeps overall vehicle weight low for faster acceleration and better handling. We can customize connectors to match all major RC brands.
What connector options are available?
We support all standard RC, drone, and robotics connectors: XT60, XT30, JST-PH 2.0, JST-XH, Deans T-plug, EC3, Molex, and custom connectors. Balance charge connectors (JST-XH 4-pin) can be included for 3S balance charging with any standard Li-Po charger.
What certifications does the ASOL789945-3S have?
All standard packs ship with CE, RoHS, UN38.3, MSDS compliance documentation.
What is a 789945 Li-Po cell?
789945 refers to the cell's physical dimensions: 7.8mm thick × 99mm wide × 45mm long. This is a standard soft pouch cell Li-Polymer format that provides a lightweight, compact energy source — ideal for FPV drones, RC aircraft, and high-performance RC vehicles where every gram matters.
How does 789945-3S Li-Po compare with 18650-3S Li-ion for drones and RC vehicles?
The 789945-3S Li-Po is approximately 30–40% lighter and 20–30% thinner than an equivalent 18650-3S Li-ion pack. For FPV racing drones, this weight savings translates directly into longer flight times and faster maneuvers. Li-Po cells also deliver higher discharge rates for better burst performance under high-current loads. Choose 789945-3S Li-Po when weight, form factor, and discharge performance are critical; choose 18650-3S when maximum capacity and longer runtime in a larger form factor are acceptable.
Get a Factory-Direct Quote
Whether you need 50 pcs for a pilot run or 10,000+ pcs for mass production, ASOL delivers competitive factory-direct pricing with reliable quality and fast turnaround.
| Contact | Details |
|---|---|
| info@asolbattery.com | |
| +86 157 7985 8703 | |
| Website | www.asolbattery.com |
| Response Time | Within 24 hours on working days |
Sample lead time: 5–7 business days
Bulk production: 15–25 business days
Payment terms: T/T, PayPal, Western Union
Looking for a reliable 11.1V Li-Polymer battery supplier for your FPV drone or RC products?
Send us your application details, required connector, target quantity, and any custom requirements — we will respond within 24 hours with a competitive factory-direct quote and free sample arrangement.
Need a different size or capacity? Explore ASOL’s full lithium polymer battery range →
