
This 3.7v lithium ion battery is engineered for industrial users requiring stable, long-lasting power solutions in compact form factors. It supports electronics manufacturers, IoT device developers, and equipment integrators demanding a dependable, high capacity battery to enhance system reliability and operational efficiency. The pouch format allows adaptable sizing to meet bespoke product requirements, providing designers and engineers with a flexible power source that aligns with diverse application needs. lithium ion battery manufacturers and lithium ion battery suppliers benefit from this battery’s compatibility and scalable features for integration across a wide range of high-demand environments.
Built to strict international standards, this prismatic lithium battery offers a nominal voltage of 3.7V with a rated capacity of 50Ah. It boasts a minimum cycle life of 1200 cycles, retaining at least 80% capacity, ensuring durability in rigorous applications. The battery supports a maximum continuous discharge current of 2C and a peak of 3C, with an internal resistance below 1.5mΩ, delivering consistent, stable output. Certifications including CE, RoHS, UN38.3, IEC62133, and MSDS validate its compliance with global safety regulations. The lightweight pouch design enhances thermal management and facilitates integration into customized assemblies for optimized battery system designs typical among lithium ion battery manufacturers.
This high capacity battery supports critical functions in sectors such as smart security systems, portable medical instruments, and connected consumer electronics. Its reliable charge-discharge cycling ensures uninterrupted performance in demanding environments, making it an essential component for IoT devices and wearable technology where endurance and safety are paramount. Lithium ion battery suppliers can leverage this battery’s proven reliability and certification portfolio to supply advanced battery solutions with a demonstrated ability to maintain capacity over extended use, thus delivering long-term value and minimizing operational downtime in industrial and commercial deployments.
| Item | Specifications | Remark |
| Model No. | LP88165265 | |
| Nominal Voltage | 3.7V | |
| Nominal Capacity | 50Ah | Standard discharge after standard charge |
| Dimensions | 8.8x165x265mm | ThicknessxWidthxLength |
| Cycle Life | ≥1200 times | ≥ 80% of the initial capacity |
| Charge Method | 1C CC to 4.2V, 4.2V CV to 0.05C | Use a dedicated lithium battery charger |
| Charge Cut-off Voltage | 4.2V | |
| Discharge Cut-off Voltage | 2.75V | |
| Standard Charge Current | 0.33C | |
| Standard Discharge Current | 0.5C | |
| Max Continuous Charge Current | 1C | |
| Max Continuous Discharge Current | 2C | |
| Max Peak Discharge Current | 3C | |
| Recommended Operation Ambient Temperature | Charge: 0~45℃ Discharge:-20~60℃ | |
| Storage Temperature | -20℃~25℃ | 12 months |
| -20℃~35℃ | 3 months | |
| -20℃~45 ℃ | 1 month | |
| Internal Resistance | ≤1.5mΩ | |
| Weight | Approx. 816g |
































Yichun Topwell Power Co., Ltd (Trademark:TWE) established in 2002, is a high-tech enterprise focusing on the R&D, production and sales of lithium polymer batteries, lithium ion batteries, lithium iron phosphate batteries, and lithium thionyl chloride batteries. Products are widely used in consumer electronics, Internet of Things, smart home, medical, vehicle, home and outdoor energy storage, and have obtained CE, RoHS, Reach, UN38.3, IEC62133, CB, UL, MSDS certifications, etc.
Topwell moves on by providing reliable, efficient and intelligent battery solutions to meet different energy needs. We have efficient engineering, production and quality management teams. From raw material procurement, to production, testing, sales and after-sales service, all steps have been controlled by a strict quality management system. Our factory has passed ISO9001, IS014001, BSCI certification, SGS, Intertek audit. With the advantages in price, quality and service, we have established long-term and stable cooperative relationships with many well-known brands. Topwell always attached the great importance to the long term cooperation with customers. No matter the order is big or small, we do our best to support you the highest quality with favorable price. We believe that Topwell Power can be your best battery supplier!