Specifications Connection:Others High-concerned chemical:None Nominal Capacity:5000mAh Weight:500g Voltage:25.55v Size:18650 Application:Vacuum Cleaner Model Number:for LG Cord Zero A9 Plus A9 Max Type:Li-Ion Brand Name:Aleaivy Origin:Mainland China Rated Voltage:Others Certificate: Specification: Brand: Moccdor Battery type: Lithium-ion Battery Voltage: 25.55 Volts Capacity: 3000 mAh Reusability: Rechargeable Compatible Models: LG A9 Series Vacuum Cleaners: LG Cord Zero A9,A9K-CORE,A9MAX,A9T-Ultra,A9S,A9K PRO,A9N,A9M,A9MULTI,A958,A958SA,A9 Plus A905M A907GMS A905RM A908MVR A929KVM A958S A958SA A9K MAX A916 and more. Why choose our batteries? 1. Lithium-ion Battery Technology Provides fade-free power from start to finish This Moccdor replacement battery are made with high quality Li-ion cells, which have higher capacity and longer discharge. Each battery is tested many times before leaving the factory , perfectly compatible with LG A9 Series Vacuum Cleaners and compatible with charger. 2. Multiple protection This replacement battery built in protection against over-charge, over-discharge, over-current, over-voltage, over-load, over-heating, and provides short circuit protection. Charge Note Just after using the battery, must wait 15-30mins to cool before charging. Question:Is this battery compatible with the A9S? Answer:Yes it is,it fit all LG A9 Series Vacuum Cleaners