Specifications High-concerned chemical:None Nominal Capacity:12800mAh Weight:200g Voltage:14.4v Size:131*37*30mm Application:for Ecovacs Deebot Ozmo Model Number:for Ecovacs Deebot Ozmo 900,901,905,920,930,937,N8,N8 Pro Type:Li-Ion Brand Name:Aleaivy Origin:Mainland China Rated Voltage:14.4 V Certificate: Applicable models: Replacement battery fully compatible with Ecovacs Deebot Ozmo 900, 901, 905, 920, 930, 937, Deebot Ozmo N8, N8 Pro. Please make sure the battery model and part number matches your device before purchasing. Specifications: Voltage: 14.4 V, Type: Li-ion, Capacity: 3500 mAh / 51.84 Wh. High quality cells are used to ensure that the batteries are made from high quality batteries. Safe and reliable: FCC, CE and RoHS certified. Patented battery balancing technology, built-in overcharge, overcharge, overcurrent, short circuit, internal overheat protection to ensure safer use. Easy Installation: To install the battery, simply remove the screws at the bottom of the device, unplug the battery connector and plug in this battery. Tips: After receiving the battery, please charge it fully before use and charge it in time after use. Prevents further discharge of the battery and therefore undervoltage or insufficient cha rging and therefore poor charging. If you have any questions about the battery, you can contact us via your order ID.