It depends on the specific HP TouchSmart model, since this line spans tablets, convertibles, and standard laptops. A tm2 convertible uses a removable 6-cell lithium-ion pack such as 586021-001 or HSTNN-DB0Q, while a later 15-k or 17-f model uses an internal VI04 (41Wh) battery. Earlier tx2z tablets often took 4-cell or 8-cell packs like HSTNN-DB77. Prices across this category run from $34.99 to $75.99, so confirm your exact model number before ordering.

Start with your full model number, not just “TouchSmart 15,” because compatibility varies within a single series. Look on the label on the bottom of the laptop or open System Information in Windows to find a number like tm2-1070us or 15-n228us. Match that exact number to the battery listing. A tm2 takes a 586021-001 type pack, while a 15-n commonly uses an OA04, so the precise number is what guarantees a fit.

HP TouchSmart replacement batteries run from $34.99 to $75.99 in this category. Where your model lands depends on cell count and capacity. Compact 4-cell internal packs like the VI04 (41Wh) used in later 15 and 17-inch models tend toward the lower end, while higher-capacity 6-cell or 8-cell packs for the tm2 and tx2z convertibles sit higher. Confirm your exact model number so you are matching both the right part and the right price.

No, not across the line. The TouchSmart name covers tablets, convertibles, and standard laptops from 2008 to 2014, and the batteries differ in cell count, capacity, and physical form. A removable 6-cell tm2 pack (586021-001) will not fit a later 15-k model that uses an internal VI04 (41Wh) battery. Even within the 15 series, a 15-n uses an OA04 while a 15-k uses a VI04. Always match your full model number.

The biggest difference is removable versus internal and cell count. The tx2z tablet used swappable 4-cell or 8-cell packs (such as HSTNN-DB77), and the tm2 convertible used a removable 6-cell lithium-ion battery (586021-001 or HSTNN-DB0Q). The later 14, 15, and 17-inch models shifted to internal 4-cell or 6-cell packs like the VI04 (41Wh) or OA04, which require partial disassembly. That shift from swappable to internal is the key thing to check.

Check the battery label first. On removable packs like the tm2’s 6-cell, the part number (for example 586021-001 or HSTNN-DB0Q) is printed right on the battery once you slide it out. For internal models like the 15-k, the number such as VI04 or 756743-001 may be on the pack inside the laptop or referenced in your manual. You can also match by your full model number (like 15-n228us) to find the correct part.

Yes, though the difficulty depends on your model. The tx2z tablet and tm2 convertible use removable batteries that release from the bottom or rear bay with no tools, so a swap takes a minute. Later 14, 15, and 17-inch models use internal packs such as the VI04 (41Wh) or OA04, which require removing the bottom panel and disconnecting the battery. With a small screwdriver and care, most users can handle either type.

Watch for runtime dropping well below what your model once delivered, the laptop shutting down suddenly even at a charge reading above zero, or the pack no longer holding a charge. A Windows battery report showing full charge capacity far under the original design capacity (for example well below a VI04’s 41Wh rating) is a clear sign. If your tm2 or 15-inch model only lasts a few minutes unplugged, it is time for a fresh pack.