2-Pack 40V 6.5Ah Lithium-Ion Replacement Battery and Charger Starter Kit Compatible with Ryobi 40V System, High Capacity Batteries and Charger OP4050A OP401 (3-Piece Set)

6.5Ah Ultra-High Capacity Upgrade: Experience industrial-grade performance with a substantial 6500mAh (260Wh) capacity; delivers considerably longer runtime compared to standard 4.0Ah or 5.0Ah packs, making it a robust power source for self-propelled mowers and high-cfm blowers. Full 40V System Compatibility: This battery is fully compatible with the complete Ryobi 40V and Ryobi 40V HP Brushless outdoor power equipment line. It precisely replaces OP4050A, OP4060, and OP4026 batteries and works with original OP401 and OP403 chargers. Intelligent Charging Protection: Contains a high-efficiency charger with a built-in smart-chip that tracks cell temperature and voltage; offers 8 layers of protection against overcharging, overheating, and short-circuits. 4-LED Integrated Fuel Gauge: Each battery includes a real-time power indicator, enabling you to verify remaining energy levels with a button press to avoid unexpected interruptions during extensive yard tasks. 3-Piece Complete Power Solution: This value bundle contains (2) 6.5Ah High Capacity Batteries and (1) Standard Charger. Constructed with high-density lithium cells that sustain peak power for motorized tools without the power drop observed in lower-tier replacements. Impact-Resistant Construction: Made with a durable, shock-absorbing outer shell engineered to endure the vibrations and drops typical in professional garden maintenance and outdoor applications. Advanced Battery Management System: Features an integrated smart-chip BMS that operates in harmony with the charger to guard against over-charging, over-heating, and short-circuiting while providing excellent heat dissipation during demanding outdoor applications