Power your compatible Spark amp wherever inspiration strikes with the Positive Grid Spark Battery. Designed for Spark LIVE, Spark 2 and Spark EDGE amplifiers, this optional rechargeable, replaceable lithium-ion battery delivers between 8 and 12 hours of playtime on a single charge, depending on the model. Its swappable design lets you quickly install a fresh battery for extended rehearsals, performances or practice sessions, while convenient in-amp charging allows the battery to recharge whenever your Spark amp is connected to AC power. Whether you're performing onstage, practicing at home or playing away from an outlet, the Spark Battery provides dependable portable power that keeps your music going.