WORX - 20V Power Share PRO 4.0Ah Lithium Battery

Hello there! Thank you for your inquiry. Even when the WA3674 lithium‑ion battery is removed from a tool and not actively being used, a small amount of self‑discharge is normal and expected. Inside the battery are electronic components—such as the protection circuit and battery management system—that continue to draw a very small amount of power to monitor voltage, temperature, and cell safety. This means the battery is never truly “off,” and over time it will slowly lose charge on its own. Factors like cold storage temperatures, how long it’s been sitting since the last charge, and whether it was stored fully charged or nearly empty can make the discharge more noticeable. Storing the battery for long periods fully depleted or fully charged can also accelerate the effect. For best results, WORX recommends storing batteries indoors, at room temperature, and at about a 40–60% charge, which helps minimize self‑drain and extends overall battery life. Thank you for choosing WORX!

Hello Klaus! Thank you for your question. Yes, this battery will work in the WG743 and it will also be compatible with the charger you originally got with the mower! Thank you for choosing Worx!

Hello There! Thank you for your question. Our 4.0AH battery will have an average run time of 40-60 minutes. However, you can see shorter times depending on the tool it is being used on. Thank you for choosing Worx!

The battery's voltage is 20 volts.

The manufacturer's warranty for parts on this battery is 3 years.