Battle Born Batteries are made in Reno, Nevada – the Battle Born State. Our batteries are the height of lithium ion technology. We only use LiFePO4 (Lithium Iron Phosphate) in our packs, this is the safest and most reliable chemistry of lithium ion available. They outperform and outlast all other batteries in their class and below their class (lookin’ at you, lead acid batteries). The best part? They’re easy on the planet and your wallet. We are proud to be sponsored by Battle Born Batteries and we look forward to sharing our monster Battle Born story with our ten BB5024s lithium batteries in a monster 24v system. To learn more about our system and see our Pau Hana Travels Battle Born bundles visit our PHT Solar Guide. We are a paying customer with a reviewing relationship with Battle Born Batteries.