Battery is brand new and has never been used, just opened the box.

This is the upgraded version featuring Automatic Self-Heating, making it perfect for cold-weather charging and year-round performance

Key Features Massive Capacity: 200Ah (2560Wh) of usable energy.Self-Heating Tech: Safe charging in freezing temperatures.Long Lifespan: Up to 4000-15000 deep cycles.Built-in BMS: Full protection against overcharge and short circuits.Lightweight: Fractions of the weight of standard lead-acid batteries.Perfect for RVs, solar off-grid systems, marine use, and trolling motors.