Speicifications: Chemistry: Li-ion Brand: For Eufy / Ecovacs Model No.: TW4-11 Condition: Brand new Sub-Type: Replacement Battery Capacity: 4000mAh/4.0Ah Voltage: 14.4V Wattage: 37W Item Weight: 280g No memory effect. Reliable safety protection functions for short-circuit, over-voltage, over-current, over-heat and over-discharge. Easy to disassemble and install. Feature: -Reliable safeguard features with the protection for short circuit, output over voltage, overheat and output overcurrent. -Perfect Battery Management System, high-end protection IC. -Power Battery to support max. 8A discharge. -Compatible with Ecovacs N79S, 500, N79, N79SE, N79W, DN622, DN622.11 Robot Vacuum Cleaners. Package Included: 1X 4.0Ah 14.4V Lithium Battery.
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