ROHS 903659 2500mAh Lipo Battery

01 – Portable Diagnostic Device Project from the United Kingdom

A medical technology company in the United Kingdom was developing a new portable diagnostic device intended for use by healthcare professionals during field visits and community health programs. The product required a battery capable of supporting a full working day of operation while maintaining a lightweight and compact design.

The customer initially evaluated several battery suppliers but found significant differences in actual capacity performance and cycle life consistency. Because reliable operation was critical in medical environments, they contacted Lithotop seeking a dependable battery solution and long-term manufacturing partner.

After reviewing the device’s power consumption profile, charging requirements, standby behavior, and enclosure dimensions, Lithotop recommended the 903659 3.7V 2500mAh lithium polymer battery. Our engineering team determined that the battery offered the optimal balance between runtime, size, and system integration requirements.

During development, Lithotop worked closely with the customer to optimize connector selection and cable routing inside the device. Sample batteries underwent capacity verification, charge-discharge cycle testing, operating runtime validation, and device compatibility testing.

Several prototype iterations were tested under simulated field conditions to ensure stable operation during extended use. The customer confirmed that the battery consistently delivered the required operating time while maintaining acceptable thermal performance.

Before mass production, both parties finalized quality control standards, battery specifications, and incoming inspection procedures. The final product was successfully launched into the healthcare market, helping the customer provide reliable diagnostic services while reducing battery-related maintenance concerns.

02 – Smart Logistics Tracking Terminal Project from Poland

A Polish technology company was developing a smart logistics tracking terminal used for monitoring high-value shipments across Europe. The device combined GPS positioning, wireless communication, and sensor monitoring functions, creating a requirement for long battery life and dependable performance in various transportation environments.

The customer approached Lithotop after experiencing inconsistent battery quality from a previous supplier, which resulted in varying standby times and increased field service costs. They required a battery manufacturer capable of maintaining stable production quality and supporting compliance requirements for European markets.

Lithotop analyzed the operating current profile, transmission intervals, environmental conditions, and installation space available inside the tracking terminal. Based on these factors, the 903659 3.7V 2500mAh LiPo battery was recommended as the most suitable solution.

During the development phase, our engineering team optimized battery wiring, protection circuit integration, and assembly details to improve reliability during transportation and daily operation. Sample batteries were subjected to capacity testing, cycle life verification, vibration simulation, and long-term standby evaluation.

To support the customer’s compliance requirements, Lithotop also provided RoHS documentation for the project. The customer successfully completed product qualification and environmental compliance verification using the supplied documentation.

Before entering mass production, both teams confirmed samples, inspection standards, packaging specifications, and batch consistency requirements. Following product launch, the customer reported improved field reliability and reduced maintenance requests. This allowed them to expand deployments across multiple logistics networks while maintaining customer confidence in the tracking solution.