Everything else about the VoltX 12V 300Ah Pro Lithium Battery is extra except for the weight. Bringing in an impressive capacity, advanced features, and ultra-safe operation, you'll never have to worry about losing power with this. It's also about 60% lighter than conventional battery packs, making it the perfect drop-in upgrade for your existing, heavy batteries. Get winning performance with every use - this battery pack is built with grade-A prismatic cells all engineered to deliver long-lasting, quality power.