3.7V 400mah 402545 high temperature lipo battery
| Model | VTC-LP402545 |
| Voltage | 3.7V |
| Capacity | 400mAh |
| Max Size (Thickness x Width x Length) | 4.4mmX25.5mmX47mm |
| Operating Temperature | -20℃ to 60℃ |
| Standard Charge Rate | 0.5C |
| Standard Discharge Rate | 1C |
| Configuration | 1S1P |
| Weight | 13.5g |
400mah lipo battery for RC Models, Drones, and GPS trackers
402545 3.7V 400mAh lipo battery passed the global standards of MSDS ,UL ,IEC62133 ,CB ,
UN38.3 ,CE ,ROHS,KC ,BIS to satisfy global market certifications and make your product competitive in the market.VTCBATT 402545 3.7V 400mAh is produced in daily 10K output and solid-packaged to ship to our worldwide customers by air and sea.
As the ideal to power for GPS, portable equipment, GPS trackers, medical devices and IOT devices,402545 3.7V 400mAh lipo battery can be customized as your specific size and connetors.
Long Cycle Life
Based on 0.5C/1C cycling, the VTCBATT 400mah lipo battery can maintain over 80% capacity after 500 cycles and totally reach 1000 times cycle life.
Customization
VTCBATT can support full customization of the lipo batteries in different sizes, capacities, connectors, discharge rates, and cases. Just inform us of your specific requirement, and our professional engineers can provide you with the customized lipo battery proposal.
Strict Cell Match
Strict cell match standards in 10mV voltage tolerance, 5mAh capacity tolerance, and 1mΩ to ensure excellent performance of the total lipo battery pack.Furthermore,the PCB with cell balance function can long-lasting power supply without any failure.
PCB with NTC
VTCBATT 400mah lipo battery are provided with NTC(Negative Temperature Coefficient), a kind of temperature sense to decrease the resistance as the temperature increases, allowing accurate temperature monitoring of the batteries. The NTC plays a critical role in improving the battery reliability and safety.
Full Certification & Extended Warranty
VTCBATT LiPo batteries meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.
VTCBATT 400mah lipo battery passed all the major global certifications, such as CB, CE, EN61000,IEC62133,MSDS.UN38.3,ROHS,UL,BIS,KC Certification,which makes your product more competitive.
Compared to a normal 12-month warranty, VTCBATT lipo batteries have 14-month warranty and two extra months for shipping and customs clearance ,which ensure the customer’s profit.
VTCBATT Production and Service
VTCBATT automated production line enables standard manufacturing in every process from raw materials to PCB assemble.VTCBATT sales team and professional engineer team will respond within 6 hours and propose battery solutions within 24 hours.
VTCBATT focuses on standard manufacturing in every process to ensure the highest-quality batteries. To establish long-term and win-win cooperation with customers worldwide, VTCBATT provides comprehensive support from pre-sales to after-sales in fast assistance and professionalism.
From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries
quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application for 400mah lipo battery
High Temperature Performance Test Report
Subject: VTCBATT 402545 400mAh 3.7V Li-Po Battery
1. 65°C High-Temperature Discharge Test Data
| No. | RT Resistance (mΩ) | RT Capacity (mAh) | RT Platform (min) | HT Resistance (mΩ) | HT Capacity (mAh) | HT Platform (min) |
|---|---|---|---|---|---|---|
| 1 | 82 | 394 | 45 | 84 | 389 | 44 |
| 2 | 83 | 395 | 46 | 85 | 390 | 44 |
| 3 | 82 | 393 | 47 | 84 | 389 | 45 |
| 4 | 83 | 396 | 46 | 85 | 391 | 44 |
| 5 | 80 | 397 | 45 | 83 | 392 | 43 |
| Average | 82.0 | 395.0 | 45.8 | 84.2 | 390.2 | 44.0 |
2. 75°C High-Temperature Discharge Test Data
| No. | RT Resistance (mΩ) | RT Capacity (mAh) | RT Platform (min) | HT Resistance (mΩ) | HT Capacity (mAh) | HT Platform (min) |
|---|---|---|---|---|---|---|
| 1 | 82 | 395 | 45 | 85 | 388 | 44 |
| 2 | 83 | 397 | 46 | 86 | 389 | 43 |
| 3 | 81 | 396 | 45 | 84 | 388 | 43 |
| 4 | 80 | 394 | 44 | 83 | 387 | 42 |
| 5 | 83 | 395 | 46 | 85 | 387 | 43 |
| Average | 81.8 | 395.4 | 45.2 | 84.6 | 387.8 | 43.0 |
3. 85°C High-Temperature Discharge Test Data
| No. | RT Resistance (mΩ) | RT Capacity (mAh) | RT Platform (min) | HT Resistance (mΩ) | HT Capacity (mAh) | HT Platform (min) |
|---|---|---|---|---|---|---|
| 1 | 82 | 397 | 46 | 86 | 385 | 44 |
| 2 | 84 | 396 | 45 | 88 | 384 | 43 |
| 3 | 82 | 398 | 45 | 86 | 386 | 44 |
| 4 | 82 | 397 | 46 | 87 | 385 | 43 |
| 5 | 81 | 396 | 47 | 86 | 384 | 44 |
| Average | 82.2 | 396.8 | 45.8 | 86.6 | 384.8 | 43.6 |
4. Comparative Summary Across Temperatures
| Test Temp | Avg RT Capacity (mAh) | Avg HT Capacity (mAh) | Retention (%) | Criteria | Result |
|---|---|---|---|---|---|
| 65°C | 395.0 | 390.2 | 98.78% | Loss < 5% | PASS |
| 75°C | 395.4 | 387.8 | 98.08% | Loss < 12% | PASS |
| 85°C | 396.8 | 384.8 | 96.98% | Loss < 20% | PASS |
Test Summary & Conclusion
- Thermal Stability: The VTCBATT 402545 400mAh battery demonstrated exceptional stability. Even at 85°C, the capacity retention remained at 96.98%, far exceeding standard requirements.
- Electrical Integrity: Internal resistance remained extremely stable with only minor increases (2-4 mΩ), indicating healthy electrochemical properties under stress.
- Safety: All samples showed no signs of deformation, leakage, or explosion throughout the testing period.
CONCLUSION: THE PRODUCT MEETS ALL HIGH-TEMPERATURE SPECIFICATIONS.
