"It's a car charger only, rather than built-in battery cell. 1. Reliable Protection Our UV-K5 Eliminator Car Charger offers reliable protection with current overload and leakage protection, ensuring safe use in your vehicle. This feature makes it an excellent choice for drivers, hunters, campers, and road trip enthusiasts. 2. Wide Compatibility Designed to be compatible with various models, including UV-K5, UV-K6, RT-590, UV-K5(8), UV-K5(99), and UV60D. This broad compatibility ensures you can power your devices seamlessly during outdoor adventures. 3. Versatile Usage The 12-24V battery eliminator is widely used in major car models, making it perfect for use in automobiles. Whether you're on a road trip or in the wilderness, this car charger keeps your two-way radio operational. 4. Easy to Reach Support If you have any issues or questions about compatibility, please feel free to reach out. We are committed to providing excellent customer service and ensuring your satisfaction with our product. 5. Warranty Assurance We offer a 3-month warranty provided exclusively through ""lemontok Electronics Co., Ltd."" This warranty guarantees your purchase is protected, giving you peace of mind while using our product."