18650 Button Top Rechargeable Li-ion Battery 3.7V 2600mAh True Capacity Verified IMR Lithium Ion Cells Genuine Rechargeable Battery for Flashlight LED Torch Arduino Robotics Power Bank IoT Devices DIY Electronics Battery Pack Projects (4 Pack)

18650 Button Top Rechargeable Li-ion Battery 3.7V 2600mAh is designed for users who require genuine rechargeable lithium-ion power with verified true capacity rather than exaggerated battery specifications. Each battery features a button top positive terminal design, making it compatible with many flashlights, LED torches, emergency lights, portable lighting devices, battery-powered electronics, communication equipment, portable fans, rechargeable gadgets, testing instruments, electronic accessories and compatible battery holders that require button top cells. Built using quality IMR lithium-ion technology, these rechargeable batteries deliver a true 2600mAh capacity, stable 3.7V output, reliable energy storage, low self-discharge performance and dependable power delivery for everyday use. Suitable for Arduino projects, robotics systems, ESP32 modules, Raspberry Pi development, IoT devices, wireless electronics, sensor systems, STEM education kits, engineering projects, electronic prototypes, automation systems, smart devices, portable electronics, battery pack development and energy storage applications. Unlike batteries that advertise unrealistic capacities, these rechargeable lithium-ion cells are designed around real-world performance and genuine capacity ratings. The button top design provides wider compatibility with many consumer electronics and portable devices requiring a raised positive contact. For international transportation safety compliance, lithium-ion rechargeable batteries are shipped with a reduced charge level according to international air and sea shipping regulations. Upon receiving the batteries, users should fully charge them before first use with a compatible lithium-ion battery charger. This is a standard transportation requirement and does not indicate reduced capacity, battery degradation or product defects. Ideal for flashlights, LED torches, emergency lighting, portable electronics, Arduino controllers, robot cars, ESP32 boards, Raspberry Pi systems, IoT modules, communication devices, battery replacement projects, testing equipment, educational electronics, engineering laboratories, smart technology applications and rechargeable power solutions requiring stable voltage, true capacity and dependable long-term performance.