High-rate pouch cell pack for direct UAV integration. Compact profile, stable discharge curve, wide operating temperature range. Professional-grade LiPo soft pack for UAV and drone integration. Engineered for stable high-current output in compact, weight-sensitive airframe designs.
The FBC7871125PS3 6S1P is a professional-grade soft pack drone battery from the ampKRAFT PS3 Series. Designed for direct integration into UAV platforms, it delivers reliable high-current output with a continuous discharge of 88A and a 10-second burst capability of 140A. The slim 51.5mm profile makes it a practical choice for space-constrained airframe designs where weight and form factor matter as much as raw capacity.
| Parameter | Value |
|---|---|
| Typical Capacity | 11,000 mAh |
| Nominal Capacity | 10,600 mAh |
| Nominal Voltage @0.2C | 21.6V (3.6V/cell) |
| Typical Energy | 238 Wh |
| AC Impedance @1kHz | ≤22 mΩ |
| Charge Cut-off Voltage (cell) | 4.2V |
| Charge Cut-off Voltage (pack) | 25.2V |
| Max. Charge Current | 1C / 11A |
| Parameter | Value |
|---|---|
| Nominal Discharge Current | 1C / 11A |
| Cut-off Voltage | 15V |
| Continuous Discharge (60s @25°C) | 88A |
| Burst Discharge (10s @25°C) | 140A |
| Continuous Discharge Power | 1,900.8W |
| Burst Discharge Power | 3,024W |
| Condition | Range |
|---|---|
| Charge | 0°C to +45°C |
| Discharge | -20°C to +60°C |
| Storage ≤1 month | -20°C to +45°C |
| Storage >1 month | -20°C to +30°C |
| Limit Charge (cell surface) | 0°C to +55°C |
| Limit Discharge (cell surface) | -20°C to +85°C |
| Parameter | Value |
|---|---|
| Configuration | 6S1P |
| Thickness | ≤51.5mm |
| Width | ≤74mm |
| Length | ≤135.5mm |
| Cable Length L1 | 100 ±10mm |
| Cable Length L2 | 60 ±10mm |
| Approx. Weight | 880g |
| PVC Sleeve | Yellow |
| Discharge Connector | XT90 / AWG 3239 10# |
| Balance Connector | JST-XHP-7P Reversed |
The FBC7871125PS3 is a 6S1P high-discharge drone battery built on ampKRAFT’s PS3 soft pack cell technology. With a nominal voltage of 21.6V and a nominal capacity of 10600mAh (typical 11000mAh), it delivers 238Wh of usable energy in a compact pouch cell format purpose-built for UAV integration.
The high-discharge design supports a continuous draw at 15C (88A) and a burst discharge at 20C (140A), providing stable voltage output from takeoff to the end of the mission. Unlike cylindrical cell packs, the soft pack architecture keeps the profile slim at 51.5mm thickness, improving weight distribution and thermal management across the cell surface.
At 880g, this 21.6V drone battery is well suited for light-payload multirotor platforms where every gram of battery weight directly reduces payload or flight time. The XT90 discharge connector and JST-XHP-7P balance connector are compatible with standard UAV charging and integration setups.
For development teams qualifying a new platform, the PS3 Series covers five capacity variants from 10600mAh to 21200mAh nominal, all sharing the same 70.5mm cell width and 3.6V nominal cell voltage for consistent pack design across configurations.
Sourcing a professional 6S drone battery means more than matching a voltage and capacity spec. Flight-critical applications demand consistent cell quality, verified discharge performance, and a supplier who understands the difference between a datasheet and a flying platform.
ampKRAFT’s PS3 Series soft pack batteries are manufactured under a fully vertically integrated production process, with proprietary intellectual property covering cell chemistry, materials, and quality control. Every batch is traceable, and every cell is built to the same specification as the one before it.
For UAV engineers and procurement teams working on professional drone platforms, inspection systems, or defense-adjacent applications, ampKRAFT provides direct access to the source technology, not a rebranded off-the-shelf product. Custom configurations, alternative connectors, and volume pricing are available on request, supported by a dedicated engineering team with hands-on UAV application experience.
Whether you are integrating a 21.6V soft pack battery into an existing airframe or developing a new UAV platform from scratch, ampKRAFT is the right partner to have early in the process.
Everything you need to know about the FBC7871125PS3 soft pack battery. If your question is not covered here, our engineering team is happy to help directly.
The FBC7871125PS3 is a 6S1P soft pack drone battery with a nominal capacity of 10,600mAh and a typical capacity of 11,000mAh. The nominal voltage is 21.6V based on a 3.6V per cell configuration. The pack delivers 238Wh of usable energy and weighs 880g, making it one of the more compact options in the 21.6V drone battery segment. Physical dimensions are 135.5mm length, 74mm width, and 51.5mm thickness, with an XT90 discharge connector and JST-XHP-7P balance connector. It is built on ampKRAFT’s PS3 soft pack cell technology with full traceability across production batches.
The battery supports a continuous discharge of 15C, equating to 88A sustained over 60 seconds at 25°C. For short high-demand bursts, the pack handles 20C, or 140A for up to 10 seconds. Continuous discharge power reaches 1,900.8W, with a burst discharge power of 3,024W. The soft pack construction contributes to a stable voltage curve throughout the discharge cycle, which is particularly important for flight controllers that rely on consistent voltage input for accurate power management and stable flight behaviour.
The FBC7871125PS3 is rated for discharge between -20°C and +60°C, covering the majority of professional field conditions without pre-heating. Charging should take place between 0°C and +45°C, with temperature-dependent charge rates ranging from 0.2C at low temperatures up to 1C between 20°C and 35°C. For storage, the battery can be held at -20°C to +45°C for up to one month, and -20°C to +30°C for longer periods. Cell surface temperature limits are 0°C to +55°C for charging and -20°C to +85°C for discharge under limit conditions.
Soft pack pouch cells offer a higher energy-to-weight ratio compared to cylindrical formats such as 21700 cells, primarily because the pouch format eliminates the rigid metal casing. This reduces dead weight and allows the pack to be shaped to fit the available space in an airframe more precisely. Thermal management is also more effective in soft pack designs, as heat dissipates across a larger cell surface area rather than concentrating within a cylinder. For UAV applications where every gram and every millimetre of form factor matters, soft pack batteries are the preferred choice in professional and industrial drone development.
Yes. ampKRAFT supports custom connector types, modified cell configurations, and volume supply for drone manufacturers, system integrators, and OEM customers. Because ampKRAFT owns the intellectual property for its cell chemistry and manufacturing process, custom requests are handled directly by the engineering team rather than routed through a third-party supplier. This means faster response times, tighter specification control, and direct access to technical expertise throughout the qualification process. To discuss a custom configuration or volume pricing, submit a technical request through the contact form and our team will respond within one business day.
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