LFP14500 3.2V Lifepo4 Lithium Battery for Solar Garden/Path Lights, Security Sensors, Electric Toothbrushes & Shavers, Remote Controls & Toys
| Model | LFP14500 |
| Voltage | 3.2V |
| Capacity | 500mAh, 600mAh,etc |
| Max Size (Thickness x Width x Length) | ∅14 mm × 50 mm（±0.2~0.5 mm） |
| Operating Temperature | -20~60℃ |
| Standard Charge Rate | 0.2C,0.5C (Maximum 1C) |
| Standard Discharge Rate | 0.2C (Maximum 1C) |
| Series/Parallel quantity | Unlimited |
| Weight | approx. 20 g |
Flexible order quantity to support prototype testing and mass production.
Batteries certified to UL,CE,UN38.3,MSDS,ROHS,IEC62133 and more global standards.
Customized size,current, case and working temperature.
7-10 days quick delivery.
Top 14500 Cylindrical LFP Battery Cell Manufacturers in China
The 14500 LiFePO4 battery is a high-performance cylindrical lithium iron phosphate battery , measuring approximately 14mm in diameter and 50mm in height (Ø14mm × 50mm). Designed for versatility and longevity, it serves as a robust building block for various energy storage solutions, capable of being configured in series and parallel to meet specific voltage and capacity requirements for 12V, 24V, 48V, and larger battery pack assemblies.
Rated at a nominal voltage of 3.2V and a nominal capacity of 500mAh (600mAh), this cell features a discharge cut-off voltage of approximately 2.0V and a maximum charge voltage of 3.65V. Engineered with a stable LiFePO4 chemical structure, the 14500 cell offers superior thermal stability, high discharge efficiency, and an extended cycle life—often exceeding 2,000 cycles at 80% Depth of Discharge (DOD).
3.2V 14500 (600mAh) LiFePO4 Battery 1000-Cycle Capacity Retention Test Report
Based on the valid data from the first 1000 cycles, this 3.2V 14500 600mAh battery demonstrates excellent and stable long-life characteristics. Its discharge capacity retention curve is smooth and steady, maintaining around 88% towards the end of the test, resulting in a highly satisfactory overall performance. The “cliff-like” sudden drop to 61% at the 1000th cycle in the chart has been identified as invalid measurement data caused by an interruption in the testing equipment. If this anomalous point is removed or corrected in the final report, the battery’s true cycle degradation curve will be exceptionally perfect, fully proving its outstanding electrochemical stability and product reliability.
3.2V 14500 600mAh LiFePO4 Battery 1000-Cycle Charge/Discharge Capacity Report
The 3.2V 14500 600mAh battery demonstrates highly satisfactory overall stability across the first 1000 cycles, with the discharge capacity degrading predictably and smoothly to approximately 520mAh. By analyzing both the charge and discharge curves together, a critical insight emerges at the 1000th cycle: while the discharge capacity (green line) experiences a sudden, severe drop, the charge capacity (red line) continues its normal, gradual trend without a corresponding crash. This divergence strongly reinforces the likelihood that the 1000-cycle “cliff” is a testing artifact—such as a premature discharge cutoff triggered by the testing equipment—rather than a true sudden electrochemical failure, confirming the cell’s underlying durability while emphasizing the need to review the machine’s discharge logs for that specific final cycle.
3.2V 14500 600mAh LiFePO4 Battery 1000-Cycle Voltage and Current Profile
Based on the uploaded charge–discharge test chart , this is a typical cycling performance curve of a 14500 LiFePO4 battery. The voltage curve shows a full charge voltage of approximately 3.65V, which matches the standard upper limit for LiFePO4 chemistry. The discharge cut-off voltage is around 2.0V, slightly lower than the common 2.5V setting, likely used to evaluate deep-discharge performance. During most of the discharge process, the voltage remains stable near 3.2V, demonstrating the characteristic flat plateau of LiFePO4 cells.
The current curve indicates a charging current of about +300mA and a discharging current of –600mA. For a 14500 cell typically rated between 500–800mAh, this corresponds to roughly a 0.75C–1C discharge rate, representing standard load testing conditions.
The stable plateau region occupies most of the discharge duration, while a sharp voltage drop occurs below 2.8V, indicating near depletion.
Cylindrical Lifepo4 Battery Feature
Superior lifepo4 battery features only 3% self discharge rate per month. Ensure your equipment always ready to go even after several months of storage.Eliminate regular maintenance in water filling and acid check compared to traditional lead-acid batteries.
Lifepo4 battery is inherently safe chemistry against thermal runaway.
The integrated smart BMS can protect against extreme conditions to ensure ultimate safety for different power solutions.
Design without limits. The ultimate building block for custom power solutions. Infinite Series & Parallel combinations to meet your exact spec—no compromises, no wasted space.
Why Choose VTCBATT?
VTCBATT not only focuses on customized design and excellent service to meet the diverse demands of different customers, but also devotes itself to precise and standardized manufacturing in every process to ensure the highest-quality batteries. Meanwhile, VTCBATT will provide comprehensive support from pre-sales to after-sales, focusing on customers’ feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your best custom battery experts to assist with reliable and fast services at any time.
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
The VTCBATT 3.2V 14500 LiFePO4 battery is widely used in solar garden and path lights, smart security sensors, electric toothbrushes, and industrial remote controls, where high safety, long cycle life, and stable power output are essential. With its compact cylindrical design and reliable performance, it is ideal for consumer-grade outdoor decorative lighting and for replacing traditional Ni-MH batteries to deliver faster charging and a significantly longer lifespan.
This battery supports flexible series and parallel configurations, with customized voltage, capacity options, and intelligent BMS integration to precisely match your application requirements. Featuring excellent thermal stability, constant voltage output, deep cycle capability, and superior safety performance, the VTCBATT 3.2V 14500 LiFePO4 battery ensures efficient energy management, extended service life, and dependable operation for both consumer and industrial applications.
