Custom Fixed wing UAV/UAS battery 9S5P SANYO cells NCR18650GA 32.4V 17Ah,best energy density Lithium battery for UAV
Standard Charge Current
Max. Charge Current
Battery management System (BMS)
Linkage customized BMS
Continuous Discharge Current
Peak Discharge Current
Full Charged Voltage
37.8V(4.2V per cell)
Charge Cut-off Voltage
38V (4.25V any single cell)
Discharge Cut-off Voltage
27V (3.0V per cell)
Charging: 0°C ~ 45°C
Discharging: -20°C ~ 55°C
0°C ~ 45°C
2000 times (80% of initial capacity at 0.2C rate, IEC Standard)
Technical specs and performances
Cell count: 45 (same rank cells)
Cell type: Panasonic NCR18650GA – Made in Japan
Electrochemistry : Lithium-ion NCA (LiNiCoAlO2)
DC IR: less than 120mΩ
Series-Parallel-Connected Cells: 9S5P
Current capacity: 17Ah
Voltage (nominal) 32.4V/33.3V
Energy capacity: 550Wh
Maximum continuous discharge current: 30A
Maximum pulse discharge current (10sec): > 50A
Maximum allowable charge voltage: 38V
The discharge end voltage should be more than 25V (recommended 27V for long lifespan)
Charging current (CC): max.10A
Weight: +/- 2400g (including wiring harnesses, connectors & covering)
Physical dimensions (distance between cell pack edges, excluding harnesses) : custom on demand.
Wiring harnesses and connectors
Discharge wire type: Multi-strand 12AWG flexible silicone insulated copper
Gold plated discharge connector (customizable): XT90s / EC5/ XT150 / AS150
Discharge wire length (pack to connector end) +/- 100mm
with Linkage custom BMS inside for all kind of protection like over charge,over discharge, short circuit….to protect the battery and long life span.
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.
The upper part of the cell is over-insulated with a ring-shaped dielectric material.
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.
The battery pack is externally wrapped in a hard (Black & Blue) PVC film.
The recommended smart charger
Our Linkage smart charger 38V 10A
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.
Assembling BMS with Battery Module/Making Samples
Customized charger for charging!
Charging with @10A is only 31 degrees,no heat all all.
TESTSTING PROCEDURE WITH 30A loading for few minutes,very reliable.
Batteries Waiting for testing
Target acquisition and identification
Ground forces direction and support
Area scanning and monitoring
Installations monitoring for maintenance and security
Forst fire detection
Pipeline inspection and monitoring
Drug trafficing control
Safe city & Law enforcement applications
Series-Parallel-Connected Battery Cells
Current capacity (Ah)
Continuous discharge current (A)
Battery Pack weight (grams)
4S4PSanyo NCR8650GA 3500mAh(specs)
4S6P Sanyo NCR8650GA 3500mAh(specs)
4S7PSanyo NCR8650GA 3500mAh(specs)
Lithium Ion batteries can have one major advantage, up to twice the energy density of a LiPo.
They are always cylindrical and generally have a metal casing giving up some space and weight, but not much.
Even with those constraints Lithium Ion batteries normally have at least 70 percent more energy density by weight than LiPos.
This directly translates to 70 percent longer flight time (if you can use them).
The Achilles heel of the Lithium battery for our use is it's low discharge rate.
Current Lithium Ion batteries have a 2C Discharge rate and if you drain them above that rate it will damage the battery.
In fact many of the popular Lithium Ion batteries now include built in protection against charging or discharging too fast.
But for our use this only means that if you need more power than the battery is rated for it simply won't provide it.
If you are flying a multicopter and a motor needs to speed up for stability and the power is not available you have a problem.
Or if your airplane needs more power than is available, it can pull down the electronics and servos to where they won't function.
Nonetheless, the high energy density definitely justifies designing UAVs that can work within the Li Ion discharge envelope.
A properly designed copter could get 40 to 60 minute flight times and an airplane up to two hours with lithium ion batteries.
A secondary advantage of lithium ion batteries is that they can operate to over a thousand charge cycles if properly cared for.
The NCR-18650 Lithium Ion Battery pioneered by Panasonic is available in a variety of single cell energy capacities.
Since lithium ion batteries come as single cells you will need to either "spot weld" several together with tabs or use a holder.
It is recently becoming possible to buy stock and custom battery packs of 18650 type lithium ion batteries.
The picture above on the right is two 3400mAh Panasonic NCR 18650B 3.7 volt batteries..