The CNHL Long Range Series 10000mAh 14.4V 4S2P 21700 Li-ion battery combines eight BAK 50D cells into a 144Wh extended-range power system for larger RC airplanes, fixed-wing aircraft and endurance-oriented UAV platforms using XT90. Its 4S2P architecture doubles the parallel capacity of a 4S1P 5000mAh pack while allowing propulsion load to be shared across two cells in each parallel group.
At approximately 568.5g for the pictured production sample, the finished battery provides approximately 253Wh/kg of pack-level energy density. This figure includes all eight 21700 cells, pack construction, XT90 connector, 12AWG power leads and balance wiring.
Built around the BAK 50D Power + Energy Balance platform, this battery is designed for larger endurance aircraft that need substantially more mission energy than a compact 1P battery while also benefiting from the current-sharing characteristics of a 2P configuration. The XT90 connector matches a different aircraft ecosystem; it does not make the underlying 50D cells more powerful than the corresponding XT60 version.
Quick Battery Fit & Performance Check
| Battery Type |
21700 Li-ion battery pack |
| Cell Platform |
BAK 50D |
| Configuration |
4S2P / 8 cells |
| Capacity |
10000mAh |
| Nominal Voltage |
14.4V |
| Nominal Pack Energy |
144Wh |
| Approx. Weight |
Approx. 568.5g |
| Approx. Pack Energy Density |
Approx. 253Wh/kg |
| Main Connector |
XT90 |
| Power Wire |
12AWG |
| Performance Direction |
Extended Range / Power + Energy Balance |
| Primary Applications |
Larger RC airplanes, fixed-wing aircraft, mapping UAVs and endurance platforms |
Product Specifications
| SKU |
LI1000104S70XT90 |
| Series |
CNHL Long Range Series |
| Chemistry |
Rechargeable Li-ion |
| Cell Format |
21700 |
| Cell Model |
BAK INR2170-50D |
| Configuration |
4S2P / 8 cells |
| Capacity |
10000mAh |
| Nominal Voltage |
14.4V |
| Maximum Charge Voltage |
16.8V (4.20V per cell) |
| Nominal Pack Energy |
144Wh |
| Main Connector |
XT90 |
| Main Power Wire |
12AWG |
| Approx. Dimensions |
146 × 43 × 44mm (5.75 × 1.69 × 1.73in) |
| Approx. Weight |
568.5g / 1.25lb |
| Approx. Pack Energy Density |
Approx. 253Wh/kg |
144Wh Extended-Range 4S2P Battery
Eight BAK 50D cells are arranged as 4S2P to create a 14.4V nominal battery with 10000mAh capacity and 144Wh of nominal stored energy.
Compared with a 4S1P 5000mAh battery using the same cell platform, the 2P configuration doubles total capacity and energy while allowing electrical load to be shared across two cells in every series group.
This makes LI1000104S70XT90 a more natural choice for larger fixed-wing and UAV platforms that can productively carry the additional cell count and need substantially greater mission energy.
Approx. 253Wh/kg Finished-Pack Energy Density
With 144Wh at approximately 568.5g, this finished battery provides roughly 253Wh/kg.
This figure includes all eight 21700 cells, the XT90 connector, 12AWG leads, balance wiring and the physical battery assembly. It therefore represents the energy-to-weight performance of the complete battery installed in the aircraft.
Actual endurance still depends on aircraft efficiency, payload, propulsion system, wind, mission profile and the amount of battery energy that can be used safely.
Why 4S2P Matters: More Energy and Parallel Load Sharing
The 2P architecture changes more than capacity. Each series group contains two cells operating in parallel, so electrical load can be divided between those cells rather than passing through a single cell path.
Compared with a 4S1P 50D pack, this creates twice the nominal capacity, twice the nominal stored energy and greater pack-level current-sharing capability.
Actual current capability still depends on cell limits, internal connections, wiring, connector, cooling, battery temperature and load duration. A 2P architecture should not be treated as an unlimited current-rating multiplier.
Powered by BAK 50D – Power + Energy Balance
The BAK 50D is the Power + Energy Balance cell platform within the CNHL 21700 Long Range Series. Each cell provides substantial stored energy while offering more usable current headroom than an energy-first cell optimized primarily around maximum Wh/kg.
In a 4S2P configuration, the 50D's balanced character is reinforced by parallel load sharing, making the battery especially useful for larger endurance aircraft that need both substantial energy and more electrical headroom than a compact 1P pack.
This remains an endurance-oriented Li-ion battery rather than a high-C LiPo substitute for applications dominated by repeated extreme burst loads.
10000mAh Li-ion Battery for Larger RC Airplanes
This XT90 configuration is positioned primarily for larger efficient RC airplanes and fixed-wing aircraft that can make useful use of a 144Wh battery.
Larger utility aircraft, endurance-oriented fixed-wing models, gliders and other aircraft with sufficient battery volume can benefit when the extra stored energy outweighs the aerodynamic and propulsion penalty of carrying a 568.5g battery.
Browse other application-oriented options in the CNHL Li-ion batteries for RC airplanes and fixed-wing aircraft collection.
Extended-Range Battery for Fixed-Wing UAVs
The 10000mAh 4S2P configuration is also a strong direction for fixed-wing UAV applications. Mapping, inspection, surveying and aerial-imaging aircraft can benefit from the combination of substantial mission energy and parallel load sharing.
Aerodynamically efficient fixed-wing UAVs are particularly well suited to larger Li-ion batteries because relatively low cruise power can allow a significant portion of the 144Wh energy budget to be converted into useful mission time.
Explore additional configurations in the CNHL Li-ion UAV battery range.
Also Suitable for Large FPV Wings
Although this XT90 version is positioned primarily toward fixed-wing RC airplanes and UAV systems, large FPV wings using XT90 can also make effective use of the 144Wh energy capacity.
The decisive factors are battery-bay volume, installed weight, center of gravity and actual propulsion current rather than connector type alone.
XT90 Connector with 12AWG Power Leads
LI1000104S70XT90 uses an XT90 main connector with 12AWG power leads, making it a natural configuration for larger fixed-wing and UAV systems already standardized around XT90.
The corresponding XT60 and XT90 packs use the same BAK 50D cells and the same 4S2P architecture. XT90 therefore does not increase the fundamental capability of the battery cells.
Choose XT90 because it matches the aircraft's electrical installation, not because it represents a higher-performance battery platform.
146 × 43 × 44mm Battery Size
The finished pack measures approximately 146 × 43 × 44mm. The elongated form allows eight 21700 cells to be packaged into a relatively narrow 4S2P battery.
Measure the actual usable battery compartment before purchase and leave room for the XT90 connector, 12AWG leads, balance wiring, securing straps and airflow. For fixed-wing use, verify the final center of gravity with the battery installed in its intended position.
5000mAh 4S1P vs 10000mAh 4S2P
| Specification |
5000mAh 4S1P XT90 |
10000mAh 4S2P XT90 |
| Cell Count |
4 |
8 |
| Capacity |
5000mAh |
10000mAh |
| Energy |
72Wh |
144Wh |
| Approx. Weight |
296.5g |
568.5g |
| Pack Wh/kg |
Approx. 243Wh/kg |
Approx. 253Wh/kg |
| Primary Direction |
Compact / Weight-Conscious |
Extended Range / Larger Aircraft |
The 4S2P battery doubles nominal capacity and stored energy while the pictured pack weight increases by approximately 92%. The trade-off is a larger and heavier battery, but the benefit is substantially more mission energy plus parallel load sharing for aircraft designed to make use of it.
Part of the CNHL 4S 21700 Long Range Platform
This battery belongs to the CNHL 4S 21700 Li-ion battery range, where 1P and 2P configurations provide different balances of energy, battery mass and load sharing.
It is also part of the CNHL Long Range Series, designed around endurance-focused cylindrical Li-ion technology.
For broader comparison, explore all CNHL 21700 Li-ion batteries or the complete CNHL Li-ion battery range.
Charging and Battery Safety
Use a charger and charge mode appropriate for Li-ion chemistry. The BAK 50D cells use a maximum charge voltage of 4.20V per cell, or 16.8V for this complete 4S battery.
Do not assume that 4S Li-ion, LiPo and LiHV batteries use identical charging profiles, warning thresholds or cutoff settings. Confirm the selected chemistry and operating-voltage requirements before use.
The 2P architecture provides parallel current sharing, but finished-pack capability still depends on cell limits, internal connections, 12AWG wiring, XT90 connector, cooling, ambient conditions and pack temperature.
Monitor propulsion current and battery temperature during initial aircraft setup to confirm that the complete system operates within appropriate electrical and thermal limits.
FAQ: CNHL 10000mAh 4S 21700 Li-ion Battery with XT90
What cells are used in this battery?
The battery uses eight BAK INR2170-50D 5000mAh 21700 Li-ion cells arranged in a 4S2P configuration.
How much energy does this battery store?
It provides 144Wh of nominal stored energy from a 14.4V nominal voltage and 10000mAh capacity.
What is the finished-pack energy density?
Based on the pictured production sample weight of approximately 568.5g and 144Wh nominal energy, calculated finished-pack gravimetric energy density is approximately 253Wh/kg.
What is the advantage of 4S2P over 4S1P?
A 4S2P architecture doubles nominal capacity and energy compared with a 4S1P battery using the same cells, while also allowing load to be shared across two cells in every parallel group. The trade-off is greater battery size and mass.
Is this battery intended for RC airplanes?
Yes. Larger efficient fixed-wing RC airplanes are one of the primary application directions for this XT90 configuration, provided the aircraft can accommodate the battery's dimensions, weight and electrical requirements.
Can it be used in fixed-wing UAVs?
Yes. Mapping, inspection, surveying and other endurance-oriented fixed-wing UAVs can benefit from the pack's 144Wh energy capacity and 2P load-sharing architecture when the aircraft is designed around the additional battery mass.
Is the XT90 version more powerful than the XT60 version?
No. Both products use the same BAK 50D cells and 4S2P architecture. XT90 changes the connector ecosystem and slightly increases finished pack weight, but it does not increase the fundamental capability of the cells.
What are the dimensions and weight?
The pictured production battery measures approximately 146 × 43 × 44mm and weighs approximately 568.5g.
What connector and wire does it use?
LI1000104S70XT90 uses an XT90 main power connector with 12AWG power leads.
