The K2 Energy 12V Lithium Battery with 100 Ah capacity is a reliable and efficient power source for various applications. With its chemical composition of lithium, it is lightweight and has a longer lifespan than traditional batteries. The unit comes in a set of 11 and has a voltage of 12V, making it suitable for use in boats, RVs, and off-grid solar systems. This lithium battery also comes with a manufacturer warranty of 5 years, ensuring that customers can trust in its durability and performance. Its compact size and high energy density make it a popular choice for those seeking a long-lasting rechargeable battery. With the K2 Energy 12V Lithium Battery, users can enjoy a reliable and efficient power source for their needs.