If you need a reliable replacement battery for your Xantrex PowerPack 300 or similar power systems, this Mighty Max 12V 18AH battery is exactly what you're looking for. This sealed lead acid (SLA) battery is UL certified and completely maintenance-free - no adding water or special care required. Measuring 7.12 x 3.00 x 6.50 inches with nut and bolt terminals, it's designed to drop right into your existing setup. The AGM (absorbent glass mat) technology makes it spill-proof, so you can mount it in any position without worrying about leaks. It handles high discharge rates beautifully and performs consistently in both high and low temperature conditions. The deep discharge recovery feature means it bounces back well even if you accidentally run it down completely. Whether you're using it for backup power, solar systems, medical equipment, or mobility devices, this battery delivers reliable performance. The shock and vibration resistance makes it perfect for vehicles or mobile applications. The one-year warranty gives you peace of mind, and the quality matches what you'd expect from much more expensive brands. Just remember - this listing includes the battery and screws only, no wiring harness or mounting accessories. For the price, you're getting a dependable power source that will keep your equipment running smoothly for years.
Free 30-day returns 
Free 30-day returns
