12S4P 40A NCR18650GA battery

Technical specs and performances

  • Cell count: 48 (same rank cells)
  • Cell type: Panasonic NCR18650GA – Made in Japan
  • Electrochemistry: Lithium-ion NCA (LiNiCoAlO2)
  • DC IR: <38mΩ
  • Series-Parallel-Connected Cells: 12S-4P
  • Current capacity: 14Ah (14000 mAh)
  • Voltage (nominal) 44.4V
  • Energy capacity: 621Wh
  • Power: 1776W
  • Maximum continuous discharge current: 40A
  • Maximum pulse discharge current (10sec): > 60A
  • Maximum allowable charge voltage: 50.4V
  • The discharge end voltage should be more than 32.4V (37.2V for long lifespan)
  • Charging current (CC): max. 7A
  • Weight: +/- 2400g (including wiring harnesses, connectors & covering)
  • Physical dimensions (distance between cell pack edges, excluding harnesses): 235 x 70 x 72 mm (or custom on demand)

The entire cell block is surrounded by a multi-layers shield with mechanical strength and dielectric insulated, outside-reinforced with an aluminized film used in the spacecraft industry. All covering materials provide a high sealing, improve thermal performance and contribute to the robustness of the battery pack. Externally is wrapped in a hard (Black & Blue) PVC film.

Wiring harnesses and connectors

  • Discharge wire type: Multi-strand 12AWG flexible silicone insulated copper
  • Gold plated discharge connector: standard XT90s (custom EC5/Supra-X ProD6/XT150/other)
  • Discharge wire length (pack to connector end) +/- 100mm
  • Balance Plug: no plug
  • Balance wire length (pack to connector end): +/- 150mm

Thermal management

  • Innovative Passive Built-in Battery Cooling System.
  • Shielded and Cooled Discharge Cable.


  • LM35 Temperature Sensor, with a standard 3-pin connector.
  • 10k NTC thermistor/sensor TDK Electronics.
  • 6W Integrated Battery Heating System (IBHS), for sub-zero applications. Requires an external 6V power source from PDB/BEC of the aircraft.


  • 2 year

Note: CMIUTA Electric Company can discuss specification or precautions that are not described here. The data on this page is for descriptive purposes only and is not marked to make or to entail any guarantee or warranty.