01AV428 - Model 61 3-Cell 11.4V 24Wh Li-Ion Battery for ThinkPad T470 T480 T570 T580 A475 A485 P51s P52s TP25

Replace your worn or failing internal battery with this Model 61 unbranded replacement battery for compatible ThinkPad systems. This 3-cell Li-ion battery is rated at 11.4V and 24Wh / 2100mAh, making it a strong replacement option for select T Series, A Series, P Series, and ThinkPad 25 systems that use the standard internal Model 61 battery family.

This battery is designed as a compatible replacement for multiple Model 61 part numbers and is a good choice for restoring portability, battery runtime, and charging reliability in supported systems.

Technical Specifications

• Model: 61
• Brand: Unbranded
• Battery Type: Li-Ion
• Cell Count: 3-Cell
• Voltage: 11.4V
• Capacity: 24Wh / 2100mAh
• Battery Family: Model 61
• Battery Style: Internal Notebook Battery
• Application: Replacement battery for compatible ThinkPad laptops

Interchangeable / Replacement Part Numbers

• 01AV428, 01AV422, 01AV423, 01AV424, 01AV426, 01AV452, 01AV490, 3ICP6/38/64, SB10K97579, SB10K97580, SB10K97581, SB10K97597

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.

✔️ ThinkPad T Series: T470, T480, T570, T580
✔️ ThinkPad A Series: A475, A485
✔️ ThinkPad P Series: P51s, P52s
✔️ ThinkPad 25 Series: TP25

☑️ Key Features

☑️ Model 61 internal replacement battery for compatible ThinkPad systems
☑️ 3-cell Li-ion design rated at 11.4V and 24Wh / 2100mAh
☑️ Strong replacement option for worn, weak, or no-longer-holding-charge original batteries
☑️ Compatible with a wide range of interchangeable Model 61 part numbers
☑️ Good fit for users restoring battery life and portable use on supported laptops
☑️ Unbranded compatible replacement battery
☑️ Designed for internal installation in supported systems using the standard Model 61 battery form factor

Upgrade Options

• 61+ Battery Upgrade: This standard Model 61 battery can be upgraded to the 61+ battery family, including SB10K97582, SB10K97583, 01AV425, and 01AV491
• 61++ High Capacity Extended Battery Upgrade: This battery can also be upgraded to the 61++ extended family, including 4X50M08812, SB10K97584, SB10K97585, 01AV492, and 01AV427

⚙️ Fit Notes

• Please match your original battery model number, part number, and voltage before ordering
• This listing is for the standard Model 61 battery
• This battery is intended for systems designed for the 3-cell 11.4V 24Wh internal Model 61 battery family
• Some compatible systems may also support higher-capacity upgrades depending on chassis configuration