12s3p 43.2v Molicel P50B 15000mAh Li-Ion Battery Pack
12s3p 43.2v Molicel P50B 15000mAh Li-Ion Battery Pack
Part No: 12s3p - P50B
Battery Specs
| Cell Model | |
| Total Pack Capacity | mAh |
| Watt Hours | Wh |
| Max Charge Voltage | v |
| Nominal Voltage | v |
| Recommended Cut Off Voltage |
v |
| Min Voltage | v |
| Max Cont. Discharge Current | a |
| Max Pulse Discharge Current | |
| Max Cont. Charge Current | a |
| Length | mm |
| Width | mm |
| Height | mm |
| Weight | g |
Connector, Wire, Dimension Info
Connector, Wire, Dimension Info
The wire gauge used in each battery pack depends on the selected connector type. Below are the available connectors and their corresponding wire gauges:
Discharge Connector/Cables:
- XT90: 10 AWG - 90a Max
- XT60: 12 AWG - 65a Max
- QS8: 8 AWG - 300a Max
Balance Leads:
- JST-PH 2.0
- JST-XH 2.54
- JST-HY 2.0 - Compatible With Daly BMS
Please note that the listed dimensions are calculated excluding the internal cable, as cable specifications vary based on the connector choice. All dimensions and weights provided are approximate. If you require precise dimensions for your application, feel free to contact us to ensure a perfect fit.
What's Included?
What's Included?
Current Build Times:
Current Build Times:
Current lead time for battery packs: Aprox. 1-2 Weeks.
Warranty
Warranty
Nexus Battery Systems provides a one-time, non-transferable lifetime warranty on any battery with a verified factory defect. This warranty does not cover issues caused by improper storage or user errors. Warranty replacements are limited to products purchased directly from Nexus Battery Systems and do not extend to any other associated damages or losses.
WARNING
WARNING
Battery Safety Guidelines – Read Before Use
Lithium batteries can be dangerous if handled improperly. It is critical that users understand the risks and proper usage before purchase or operation. Nexus Battery Systems makes no express or implied warranty of suitability, fitness for purpose, or device compatibility.
Important Safety Precautions:
Always store and transport batteries in a protective case or box.
Never charge batteries unattended. Always charge on a fire-resistant surface using a smart charger compatible with the specific battery chemistry.
Do not overcharge or exceed the maximum voltage rating.
Do not over-discharge or exceed the battery’s continuous discharge rating.
Keep batteries away from pets, children, and flammable materials.
Never use a battery if the outer wrapper or terminal insulation is damaged or torn.
Do not expose batteries to water, liquids, or high temperatures.
Do not puncture, crush, disassemble, incinerate, or otherwise modify the battery in any way.
Avoid contact with conductive or metallic objects to prevent accidental short circuits.
Do not short circuit—intentionally or accidentally.
Use only with devices that include proper protection circuitry.
Never use batteries with unprotected or modified devices.
Do not mix different brands, capacities, models, or states of charge. Always use matched sets.
Stop use immediately if the battery emits an unusual smell, becomes hot, changes shape or color, or behaves abnormally.
If contact with battery electrolyte occurs, flush the area with water and seek medical attention immediately.
It is your responsibility to ensure that your charger and device are functioning correctly and safely.
Dispose of batteries according to local regulations—do not throw them in the trash.
The 12s3p Molicel P50B lithium-ion battery pack from Nexus Battery Systems is a 15000 mAh (648 Wh) build at 43.2 V nominal. It is assembled in Henderson, Nevada for UAV, drone, robotics, aerospace, and defense applications that need a defined series/parallel configuration and documented electrical limits.
✔ NDAA Compliant
Built with genuine Molicel P50B cells, this pack is NDAA compliant and suited to defense, government, and federally funded UAV and robotics programs that need compliant power. It is assembled in Henderson, Nevada, USA.
Key specs
- Configuration: 12s3p
- Cells: Molicel P50B (Li-Ion 21700)
- Capacity: 15000 mAh · 648 Wh
- Voltage: 43.2 V nominal · 50.4 V max · 32.4 V recommended cutoff · 30 V min
- Current: 180 A max continuous discharge · 15.0 A max continuous charge
- Approx. size / weight: 275 × 71 × 72 mm · 2700 g (excludes variable cable/connector length)
Built for real-world use
Engineered for engineers, defense contractors, and robotics, aerospace, and UAV teams. This pack is built for drones, uncrewed ground, air, and marine vehicles, robotics platforms, and custom power systems where a defined configuration and documented electrical limits matter. It also suits advanced DIY and e-bike builds. Match the pack’s continuous discharge rating and voltage window to your controller, ESC, or BMS.
What’s included
Li-Ion battery pack with custom cables, connectors, and balance leads.
Discharge connector and balance-lead options are selected on the product page (e.g. XT60 / XT90 / QS8 discharge; JST balance leads). Wire gauge follows the connector choice.
A BMS is included only when you select it as an option on this product page.
Assembled & Supported In The USA
All Nexus Battery Systems packs are proudly assembled in Henderson, Nevada, USA. Backed by over 15 years of battery expertise, every pack is built to meet our highest standards for safety, performance, and reliability.
High Amp Flow Design
By using 99.9% pure nickel with a large surface area, we ensure optimal conductivity and deliver a high-performance battery pack built for efficiency and power.
Structural Frames
Each battery pack is constructed with an internal structural frame that isolates mechanical stresses from the cells and interconnects, preserving electrical integrity and enhancing long-term durability.
Top Notch Quality Control
Comprehensive quality control is applied at every stage of production—from initial cell inspection and sorting, through assembly and weld verification, to final voltage and performance testing. Each pack is thoroughly documented to ensure traceability and consistency.
