Renogy PRO Underseat Lithium Battery 12.8V 200Ah. Compact size fits under RV seats while delivering strong, safe power. Built-in Bluetooth gives real-time battery updates via Renogy app. Automotive cells enable up to 200A charge/discharge, 4000+ cycles. Self-heating allows safe cold-weather charging down to -20?C. Smart BMS with 60+ protections ensures safety and stable output.