Notebook battery Dell M5Y1K 11.1V 43Wh replacement for compatible Dell laptops

Original-style notebook battery designed from quality components to protect against overheating and overload and to provide long service life. This 11.1 V / 43 Wh (manufacturer listing also notes 14.8 V / 40 Wh in some sources) rechargeable Li-ion battery is a replacement option for a range of Dell Inspiron, Latitude and Vostro laptops and restores mobile runtime for work, study and travel.

Advantages

The battery uses Li‑ion cells and built-in protection against thermal stress and overload to ensure stable operation and prolonged service life. It is compatible with multiple Dell notebook models and is supplied in a standard black finish. The battery is intended as a direct replacement to restore battery runtime and supports routine charging cycles.

Suitable for

• Dell Inspiron 14, 15 and 17 series models listed by manufacturer (for example 3451, 3452, 3467, 5455, 5558, 5758, etc.)
• Dell Latitude series models such as 3460, 3470, 3560, 3570
• Dell Vostro series models such as 3458, 3558, 3568 and similar
• Replacement of listed battery part numbers (for example GXVJ3, HD4J0, K185W, WKRJ2, VN3N0, 451-BBMG)

Key specifications

• Capacity: 43 Wh (product summary) — some technical listings also show 40 Wh
• Cell type: Li‑ion
• Voltage: 11.1 V (product summary) — alternative listings may indicate 14.8 V
• Color: Black
• Manufacturer / brand: Extra Digital (compatible replacement for Dell)
• Warranty: 6 months

How to use

Switch off the laptop and disconnect any power adapter before replacing the battery. Remove the old battery according to the laptop manufacturer’s instructions and install the replacement battery in the battery bay until it locks into place. Reconnect the power adapter and allow the battery to charge fully before first use. Use the operating system’s battery calibration or monitoring tools if available to check charge status and health.

Usage recommendations

For safe operation, follow the laptop manufacturer’s guidelines, avoid exposure to high temperatures, and consult a specialist if the exact model compatibility is uncertain. If in doubt about fit or specifications, contact a consultant before purchase.