The Baintech Extreme 620Ah 12.8V LiFePO₄ battery delivers class-leading energy storage for the most demanding off-grid and auxiliary power systems. With a massive 620A maximum discharge current managed by an integrated 620A BMS, it sustains high-draw loads that smaller batteries simply cannot handle. Built-in Bluetooth connectivity lets you monitor state of charge, voltage and battery health directly from a compatible smartphone or tablet, while IP67-rated construction and IEC 62619 accreditation confirm it is built to handle harsh Australian conditions — whether mounted in a caravan underbody compartment, a motorhome bay or a marine application.

Designed for large caravan, motorhome, marine and auxiliary power installations that demand extended runtimes and serious power delivery, the Extreme 620Ah is the centrepiece of a capable 12V system. It charges via standard CC/CV at 14.2–14.6V with a recommended charge current of 310A, making it compatible with most quality DC-DC chargers, solar regulators and mains chargers. The five-year manufacturer warranty and proven LiFePO₄ chemistry give long-term confidence for full-time travellers and serious off-grid setups alike.

• 620Ah LiFePO₄ capacity for extended off-grid runtimes
• 620A maximum discharge current via integrated 620A BMS
• Built-in Bluetooth for real-time monitoring from a smartphone or tablet
• CC/CV charging at 14.2–14.6V; recommended charge current 310A
• IP67-rated enclosure — fully dust-tight and protected against water immersion
• IEC 62619 accredited for safety and performance
• Wide operating temperature range: −20°C to +60°C
• Compact footprint for capacity: 520 × 268 × 220 mm