Using the latest Li-Fe technology, this pack is ideal for many modern turbines that are supplied without battery and require a 9.9v nominal voltage combined with high capacity in a very compact size. The robust nature of Li-Fe packs means that this is perfect for this demanding duty, as well as for other applications requiring 9.9v supply, and of course most of our latest Sigma EQ chargers have suitable Li-Fe charging circuitry, so are ideally matched.