Specifications High-concerned chemical:None Nominal Capacity:2600mAh Application:Electric Sweeper Model Number:Replacement Batteries Type:Li-Ion Brand Name:Aleaivy Origin:Mainland China Certification:CE Rated Voltage:14.8 V Specifications: Battery Voltage: 14.4V/14.8 Battery Capacity: 3500mAh Battery Type: Li-ion Battery Battery Color: Blue Battery Size: 7.4*3.8*3.8 cm Advantages: 1. High capacity 3500mAh Li-ion rechargeable replacement battery makes your RoboVac run longer and durable, lasting about 2-3 hours on per full charged. 2. Easy to replace the battery. Keep your RoboVac clean all dirt, dust, debris, hair and whatever was on the floor. 3. Reliable safeguard features with build in protection to avoid battery from short circuit, over-charge, over-discharge, over-heat, over-current etc. 4. Strong Warranty: 30-Day Money back, 12-Month Warranty. Compatible with Popular Models Professionally designed to replace the battery, it can be perfectly adapted to your vacuum cleaner. Compatible with: For CONGA EXCELLENCE, CONGA EXCELLENCE 990, CONGA 950, CONGA 1090 For Deebot N79, Deebot N79S, Deebot DN622, Deebot DN621, Deebot 601/605, Tesvor X500 For Eufy RoboVac 11, RoboVac 11S, RoboVac 11S MAX, RoboVac 12, RoboVac 15S, RoboVac 15C, RoboVac 15C MAX, RoboVac 30, RoboVac 30C, RoboVac 30 MAX, RoboVac 35C. For Shark Ion Robot RV700, RV720, RV750, RV755 Models (only 4 shark robot Models). For Tesvor X500 iLife A4 A4S A6 V7 V7S V7S pro, CONGA 1290 1390 3090 4090, Eufy RoboVac 11+.