Cordless Vacuum Cleaner Battery, Compatible with Tineco A11 Hero/Hero EX/Tango, 21.6V 3500mAh Long Lasting High-Capacity Power Pack

Compatible with: A11 Hero, A11 Hero EX, A11 Tango, A11 PET, A11 PET EX, [PLEASE NOTE]: This is only suitable for all vacuum of the A11, not for the A10 S11 and not A11-07!!!!

• Wide compatibility: designed specifically for A11 Hero, Hero EX, and Tango models, ready to use without modification.
• Long lasting battery life upgrade: 3500mAh high-capacity battery cell, extends cleaning time by 50%, supports deep cleaning of large apartments.
• Efficient power output: 21.6V voltage matches the original factory power, providing strong suction to deal with stubborn dust on carpets and hard floors.
• Security and stability guarantee: Built in overcharge/overdischarge protection circuit to avoid overheating risks and ensure long-term durability of the battery.
• Lightweight and convenient design: Optimized structure, compact and lightweight, without increasing the burden on the body, improving the flexibility of handheld operation.