The CipherLab battery with 4000 mAh is a high-capacity replacement power source specifically designed for the RS35 and RS36 series of handheld mobile computers. With its substantial capacity of 4000 milliampere-hours, this battery provides extended operating time for industrial and commercial mobile computing applications. The component carries the official part number BRS36BAT00004 and is engineered to meet the exact specifications of the CipherLab RS35 and RS36 devices, ensuring reliable performance and seamless integration. The battery is built with high-quality lithium-ion technology, delivering consistent voltage output and stable performance throughout the discharge cycle. It remains compatible with original charging systems and device interfaces, allowing for straightforward installation and immediate use. Its robust design supports demanding work environments where continuous device operation is essential. The 4000 mAh capacity represents a significant energy reserve, reducing the frequency of charging cycles and supporting extended shift operations. This battery serves as an authentic replacement component, preserving the operational integrity and performance standards expected from CipherLab industrial mobile computers. Proper installation ensures optimal device functionality and maintains the performance specifications intended by the manufacturer for data collection, inventory management, and field service operations.