The Envy uses a lithium-ion pack rated within the 7.4 to 11.1 V range with about 30 to 45 Wh of capacity, depending on the build year. Common part numbers in this category include 01AV411 and 5B10K10175. Because the Envy spans more than one configuration, confirm the part number printed on your current battery before ordering. Each pack runs $69.99. Matching voltage, capacity, and the part number is the surest way to get a battery that fits and seats correctly.

Match three things: your exact sub-series (such as Envy, E46, or E300), the voltage (7.4 to 11.1 V), and the capacity (about 30 to 45 Wh). The fastest method is to read the part number on your existing battery, which will be something like 01AV411 or 5B10K10175. This category covers 4 distinct part numbers across about 7 models, so confirming the sub-series and generation prevents a mismatch between similar-looking machines.

Lenovo E replacement batteries in this category are priced at $69.99. That single price applies across the 4 part numbers covering the Envy, E46, Envy 17, Envy 360, E100, and E300 sub-series. Since the cost is the same, focus your decision on matching the correct part number (for example 01AV411 or 5B10K10175) and the right voltage and capacity rather than comparing prices across packs.

Not reliably. Even within the Lenovo E line, packs differ by sub-series and production year, so a battery from one model often will not fit or connect correctly in another. This category carries 4 distinct part numbers across about 7 models, with voltages from 7.4 to 11.1 V and capacities from about 30 to 45 Wh. Always confirm your exact part number, such as 01AV411 or 5B10K10175, before assuming two packs are compatible.

The Envy, E46, Envy 17, Envy 360, E100, and E300 sub-series differ in voltage (within the 7.4 to 11.1 V range), capacity (about 30 to 45 Wh), cell count (3-cell or 4-cell), and physical size. Larger units like the Envy 17 sit toward the higher end of the capacity range, while compact models use smaller packs. These differences are reflected in the 4 part numbers here, including 01AV411 and 5B10K10175, so the correct match depends on your specific model.

Look on the label of your current battery, where you will see a code such as 01AV411 or 5B10K10175. On internal packs you may need to remove the base panel to read it. You can also check your laptop’s service or maintenance label, and many Lenovo E models list the battery FRU in the system information menu. Matching this number against the 4 part numbers in this category is the most accurate way to order.

Yes, in most cases. Many Lenovo E packs are internal, so you remove the base panel, disconnect the battery from the board, and unscrew the mounting points before fitting the replacement. A small Phillips screwdriver and a plastic pry tool are usually enough. Confirm your part number first (for example 01AV411 or 5B10K10175) so the new pack lines up with the connector and screw holes. Power down and disconnect the adapter before you start.

Watch for sharply reduced runtime, a charge that drops fast or stalls below full, sudden shutdowns, or a pack that no longer holds a charge after the laptop sits idle. If your Lenovo E once ran for hours and now lasts a fraction of that, the lithium-ion cells (rated 7.4 to 11.1 V and about 30 to 45 Wh) are likely worn. A replacement here uses part numbers like 01AV411 or 5B10K10175 and is priced at $69.99.