The ALLiON AL12126BT Lithium-iron battery is a high performing 12V Deep Cycle battery with Bluetooth technology and a capacity of 126 Amp Hours (Ah). Suitable for RV & leisure applications the ALLiON range of Lithium batteries are much lighter than comparable lead acid batteries and can last up to 4 times as long. They are also safe to use thanks to the integrated battery management system.