9-Cell 86Wh 11.1V Extended Laptop Battery for Studio 1735 1736 1737

Restore dependable portable runtime with this brand-new unbranded third-party OEM replacement battery for compatible Studio 1735, 1736, and 1737 laptops. This extended-capacity pack uses nine factory-fresh lithium-ion cells and is rated at 11.1V with 7657mAh capacity in the 86Wh class. It is a strong replacement option for an original battery that is missing, no longer charges properly, drains quickly, or causes unexpected shutdowns. This battery is produced by a third-party manufacturer and is not made by the original system manufacturer.

⚡ Brand-New 9-Cell Extended-Capacity Battery

86Wh POWER • 11.1V • FACTORY-FRESH LITHIUM-ION CELLS

What's Included

• One new unbranded 9-cell extended replacement laptop battery

Technical Specifications

• Primary Part Number: PW823
• Product Type: 9-cell extended removable laptop battery pack
• Brand: Unbranded
• Replacement Classification: New third-party OEM replacement battery
• Manufacturer: Third-party manufacturer; not made by the original system manufacturer
• Condition: New
• Battery Chemistry: Rechargeable lithium-ion
• Battery Design: Smart removable battery pack
• Cell Count: 9 cells
• Nominal Voltage: 11.1V DC
• Rated Capacity: 7657mAh / 7.657Ah
• Energy Capacity: 86Wh class; the stated voltage and amp-hour rating equal approximately 85Wh, so product labels and catalogs may round the rating to either 85Wh or 86Wh
• Capacity Type: Extended capacity
• Installation Type: External slide-in removable battery
• Housing Style: Extended 9-cell housing with a larger profile than the standard 6-cell battery
• Color: Black
• Primary Application: Portable-power replacement or capacity upgrade for supported Studio 17 systems
• Included: One replacement battery only; laptop and AC adapter are not included

Interchangeable / Replacement Part Numbers

Direct 9-Cell 85Wh / 86Wh References: PW823, 0PW823, 312-0712, MT335, 0MT335, KM973, 0KM973, KM974, 0KM974, PW835, 0PW835

The leading-zero forms are service-label versions of the same five-character part numbers and do not identify different battery designs.

Same-Platform Capacity Note: RM791 is commonly grouped with this battery family in broad replacement catalogs, but it is documented as a lower-capacity 6-cell 57Wh pack. It is therefore not listed as an identical 9-cell part-number replacement. This 9-cell battery may serve as an extended-capacity upgrade from an RM791-equipped system only when the laptop is one of the confirmed models below and the connector, guide rails, locking latches, and extended-housing clearance all match.

✅ Confirmed Compatibility

Compatibility is limited to the listed systems when equipped for the matching removable 11.1V battery interface. Confirm the laptop model, original battery number, connector position, guide rails, latch layout, and available clearance before ordering. The extended 9-cell housing is larger than the standard 6-cell battery and should not be ordered solely because a lower-capacity battery number appears in a broad compatibility catalog.

✔️ Studio 17 Laptop Models: Studio 1735, Studio 1735n, Studio 1736, Studio 1737
✔️ PP31L Regulatory-Model Configurations: PP31L systems identified as one of the compatible Studio 1735, 1735n, 1736, or 1737 models listed above

☑️ Key Features

☑️ Brand-new replacement battery built with factory-fresh long-lasting lithium-ion cells
☑️ Extended 9-cell design for greater stored energy than the standard 6-cell battery class
☑️ Rated at 11.1V DC and 7657mAh in the 86Wh extended-capacity class
☑️ Smart removable battery-pack design for supported Studio 17 charging systems
☑️ Direct replacement for the listed PW823, 312-0712, MT335, KM973, KM974, and PW835 references
☑️ Useful replacement for a missing, weak, worn, non-charging, or rapidly draining battery
☑️ May help restore portable use and reduce sudden battery-related shutdowns when the existing battery has deteriorated
☑️ External slide-in design allows battery replacement without opening the laptop chassis
☑️ New unbranded third-party OEM replacement product
☑️ Battery-only package with no laptop or AC adapter included

⚙️ Fit Notes

• Confirm that the laptop is a Studio 1735, 1735n, 1736, or 1737 before ordering.
• Match PW823, 312-0712, MT335, KM973, KM974, or PW835 when possible and compare the complete battery shape with the original.
• Verify the connector position, guide rails, retaining tabs, and release-latch locations; similar-looking battery packs are not automatically interchangeable.
• This is the extended 9-cell version. Its housing is larger than the standard 6-cell pack and may project farther from the battery bay or change the laptop's resting profile.
• RM791 is a same-platform 6-cell 57Wh reference and is not an identical cell-count or capacity match. Use it only as a fit reference for an extended-capacity upgrade in a confirmed compatible system.
• The 11.1V and 7657mAh values calculate to approximately 85Wh; 85Wh and 86Wh descriptions for this capacity class reflect catalog rounding rather than two separate pack voltages.
• Actual runtime varies with battery settings, screen brightness, processor load, storage activity, wireless use, attached devices, operating-system condition, and the age and condition of the laptop.
• A new battery will not correct faults in the AC adapter, charging connector, charger board, system board, or charging-control circuitry.
• Use a properly functioning compatible AC adapter and allow the new battery to charge fully before relying on portable operation.
• Shut down the laptop and disconnect external power before removing or installing the battery.