Customer’s 3.6V Low Temperature Lithium Battery Requirements
Introduction
This Canada customer is a project oriented engineering company and is is developing a outdoor hunting monitoring camera which would work in -40℃ environment and need a 3.6V lithium battery.
Battery Requirements
- Voltage: 3.6V
- Power consumption: daily power consumption of the product is 40mWh
- Maximum continuous discharge current: 600mA
- Working time: work for 4 months without power failure in winter.
- Working environment: can reach -40 degrees Celsius in winter.
- Battery size: within 10*6*3cm
- Certificates: IEC62133 and UN38.3
Flion power’s Custom 3.6V Low Temperature Battery Solution
Battery Solution Design Idea
-40 degrees Celsius in winter requires to use a low temperature battery cell, and now NCM -40℃ to 85℃ cylindrical cell is now a popular option.
To learn the low temperature NCM cell battery performance.
3.6V require NCM cylindrical cell to make 1 series 3.6V=3.6V*1.
Working for 4 months requires 4.8Wh=40mWh*120days. As the low temperature battery can only discharge 56.9% capacity at -40℃, so it requires at least 8.5Wh≈0.48Wh/56.9%. Then the battery capacity require at least 2.36Ah=8.5Wh/3.6V.
Above all, we choose a 3.6V 2.6Ah NCM -40℃ to 85℃ cylindrical cell to make 1S1P 3.6V 2.6Ah.
To learn the specific low temperature cell peformance
General Battery Solution Info
- Nominal voltage: 3.6V (3.6V=3.6V*1,out put voltage range is 2.75V to 4.2V)
- Nominal capacity: 2.6Ah (2.6Ah=2600mAh*2)
- Nominal energy: 9.36Wh (9.36Wh= 3.6V*2.6Ah)
- Cell type: low temperature cell 18650 3.6V 2600mAh wide temp range -40℃ to 85℃ cell
- Compose type: 1S1P
- Size: around 75x22x22mm
- BMS: included
- 10K NTC: included, model no.: CN0603R103B3435FT, cover -40℃ to 81℃
- Max Continuous discharge current: 1A Max Continuous
- Charge current: 0.6A
- Connector: 3 pins JST, model no.: XHP-3 include both female and male part
Battery Cost & Lead time
- Unit Price: 500pcs USD1X.X/pcs, around 20~25 days.
- UN38.3 & IEC62133 Certificates cost: USD14XX, around 3~4 weeks.
