FAST CHARGE TIME: With our advanced lithium rechargeable technology, Paleblue batteries can charge up to 12x faster than conventional rechargeable batteries. ANTI-LEAKING TECHNOLOGY: Our modern lithium ion chemistry works just like the battery in your phone or laptop to avoid leaking batteries. OVER 1000 CHARGING CYCLES: Stop buying single-use batteries and get a modern solution. Designed for performance, convenience and reliability. Our batteries help to reduce reduce waste, save money and save time. CONVENIENT USB-C CHARGE PORT: Use the included cable to charge four batteries at once. The built-in LED charging indicator shows when batteries are fully charged. WARRANTY: At Paleblue, we stand behind the quality of our products with a limited lifetime warranty, covering manufacturing defects and failures during normal use when products are registered through Paleblues online registration process. See our website for details.