Targeted Solution for Harsh Environment Electronics
This pack is engineered for professionals needing a dependable power source in extreme temperature operations. Designed primarily for integration into handheld devices and outdoor instrumentation, the 2S1P configuration balances voltage and capacity efficiently. The 18650 lithium battery cells enable compact form factors while addressing performance stability. Among lithium battery manufacturers, this pack suits enterprises requiring robust solutions for devices exposed to a -40°C to 85°C discharge range, supporting applications needing consistent 7.2V outputs under varying conditions.
Precision Engineering Ensuring Long-Lasting Performance
Built from premium cells, the 7.2V 2900mAh battery pack achieves up to 500 cycles at standard charge and discharge rates. The system supports continuous discharge currents up to 10A while maintaining an internal resistance no greater than 140mΩ. Its charging protocols employ CC/CV methodology with cut-off voltages precisely controlled to protect safety and longevity. Certifications such as CE, RoHS, UN38.3, IEC62133, and UL further affirm the product’s compliance within rigorous international standards, signifying the reliability expected from a professional lithium ion battery supplier.
Versatile Application Across Multiple Industrial Sectors
This wide temperature lithium battery serves critical roles in sectors including outdoor environmental monitoring, portable medical equipment, and industrial sensor networks. Its compact dimensions facilitate integration into devices requiring durable energy storage under temperature extremes. By delivering a stable power supply at 7.2V with a moderate capacity of 2900mAh, this pack enhances operational reliability in field testing, prototyping, and remote instrumentation, ensuring uninterrupted functionality where replacement or maintenance opportunities are limited.
| Item |
Specifications |
Remark |
| Model No. |
LI18650-2900-2S1P |
|
| Nominal Voltage |
7.2V |
|
| Nominal Capacity |
2900mAh |
@0.2C standard charge&discharge |
| Dimensions |
67*37.5*20mm max |
L*W*H |
| Cycle Life |
≥500 times |
(25 ℃，0.5 C / 1C ) |
| Charge Method |
CC/CV |
|
| Charge Cut-off Voltage |
8.4V |
|
| Discharge Cut-off Voltage |
5.5V |
|
| Standard Charge Current |
0.2C |
|
| Standard Discharge Current |
0.2C |
|
| Max Continuous Charge Current |
0.5C |
|
| Max Continuous Discharge Current |
2C |
|
| Operating Temperature Range |
Charge: -20~60℃ |
-20-10＜T≤0℃: 0.1C to 4.1V,
0＜T≤10℃: 0.2C to 4.2V,
10＜T＜60℃: 0.5C to 4.2V |
| Discharge: -40~85℃ |
0＜T≤85℃: 2.75V,
-20＜T≤0℃: 2.5V,
-40≤T≤-20℃: 2.0V |
| Storage Temperature Range |
-20~25℃ |
0 - 12 months |
| -20~45℃ |
0 - 6 months
|
| -40~60℃ |
0 - 3 months |
| -40~80 ℃ |
Within 30 days |
| Internal Resistance |
≤140mΩ |
|
| Weight |
Approx. 98g |
|
- Good Rate Performance: Capable of continuous 10A discharge, performing excellently at room temperature.
- Wide Temperature Operating Range: Suitable for a wide working temperature range from -40℃ to 85℃.
- High and Low-Temperature Performance: At -40℃, it can still release over 70% of its capacity at a 0.2C discharge rate.
- Excellent High-Temperature Storage Performance: Exhibits outstanding storage performance in high-temperature environments (80℃).
- Low-Temperature Discharge Performance: Maintains excellent low-temperature discharge performance even after high-temperature storage.
- Superior Cycle Performance: Demonstrates good cycle life and stable performance.
Optimized Design for Modular and Compact Integration
The 2S1P configuration using premium 18650 lithium battery cells offers a streamlined battery pack that fits small device housings efficiently. The structural layout minimizes weight to approximately 98 grams while maintaining mechanical stability and heat dissipation across temperature extremes. Compliance with ISO9001 and ISO14001 production standards ensures high-quality output during volume manufacturing. This design approach supports custom integration, appealing to lithium battery manufacturers aiming for scalable, certified battery modules adaptable to diverse industrial devices.
Enhanced Performance Yielding Reliable Energy Delivery
With a discharge capability extending to -40°C and up to 85°C, the pack is a true wide temperature lithium battery solution suitable for devices operating in harsh climates. The 2900mAh capacity paired with 7.2V nominal voltage provides predictable energy density and rate performance, maximizing uptime in mission-critical equipment. The pack’s safety certifications by CB, UL, and IEC62133 reduce risk during deployment. These attributes underline its value as a reliable 18650 rechargeable battery option for users prioritizing power consistency and lifecycle durability in demanding applications.
Military equipment, aerospace equipment, communication devices, solar street light, GPS, sensor, medical device, outdoor and adventure gear, telecommunication equipment, mining devices, EVSE charger, Camera, etc
Safety certificate: CE,CB, IEC62133, UL, PSE
Environmental certificate: ROHS, REACH
Quality management certificate: ISO9001, ISO14001, BSCI
Shipping certificate: UN38.3, MSDS, Air/Sea Transport Identification&Classification Report
01 Materials Mixing
Fully automatic feeding system,High precision, fully enclosed
02 Coating
High precision constant temperature coating machine
03 Electrode Piece Rolling
Precision automatic roller machine
04 Electrode Piece Slitting
Automatic battery electrode piece continuous slitting machine
08 Injection
Fully automatic bell type liquid injection machine
07 Tab Welding&Beading
Automatic welding machine
05 Winding
Automatic winding machine
09 Automatic Laser Welding
10 Formation&Capacity Sorting
Needle bed type charging cabinet
11 Cycle Test
Precision automatic roller machine
12 OQC Test
100% full test on appreance, voltage, capacity, resistance, size, etc
With 20 years experience in battery field, Topwell can arrange the battery ship by Sea / Air / Express.
We can provide you with all DG certification which allows you to ship these batteries,
such as UN38.3 /MSDS /DG. We can ship from Shenzhen,Shanghai,HK...
Use Scenarios
Powering Outdoor Environmental Sensors and Devices
In outdoor equipment utilized for environmental data collection or asset tracking, this wide temperature lithium battery excels as a robust energy source. Devices such as GPS trackers and remote sensors require dependable power capable of withstanding subzero to high-temperature extremes without degradation. The 7.2V 2900mAh pack delivers sustained output vital for uninterrupted wireless transmission and sensor operation. Its certified safety profile and compact size integrate effectively within ruggedized enclosures, fulfilling rigorous field deployment criteria set by system designers and environmental engineers.
Supporting Design Validation and Prototyping in Electronics Development
During prototype evaluation phases, engineers benefit from a scalable, stable power source like this 2S1P 18650 lithium battery pack. Its controlled discharge and charge parameters facilitate reliable testing scenarios under controlled temperature conditions. Use by device manufacturers, especially through lithium ion battery suppliers, aids in verifying device endurance and performance thresholds before mass production. The pack’s certified manufacture and quality control processes ensure consistency in repeated testing cycles, making it an indispensable component in iterative R&D workflows for advanced portable electronics.
FAQ
What operating temperature range does your 18650 lithium battery support?
Our 18650 lithium battery pack operates reliably from -40°C to 85°C for discharge and maintains performance with controlled charging from -20°C to 60°C. This wide temperature range suits demanding environments, ensuring dependable power for industrial and outdoor applications.
Can you customize lithium ion battery packs to specific voltage and capacity requirements?
Yes, we provide tailored solutions for lithium ion battery supplier clients. Our engineering team customizes pack configurations, including series and parallel arrangements, to meet your project’s voltage, capacity, and dimension needs, ensuring an optimized fit for your device.
How do you maintain consistent quality across high-volume manufacturing?
We enforce strict quality control across production in our ISO9001 and ISO14001 certified facility. Using automated assembly with 100% outgoing quality control (OQC), we ensure uniformity and reliability in every battery. Our processes comply with CE, RoHS, UN38.3, IEC62133, and UL standards.
What logistics certifications support shipping lithium batteries internationally?
We uphold UN38.3 compliance for all our lithium batteries, enabling safe and legal shipment to North America, the EU, and other global markets. Alongside MSDS and transport reports, our certifications, including CE and RoHS, assure smooth customs clearance and adherence to international regulations.
