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Rectangular lithium-ion battery pack with label showing 15.52V 70Whr rating

Battery Technology Inc.

Battery Technology Inc. 15.52V 70Whr Li-Ion Battery 5B11F52558 handheld pcs accessory

SKU CH-0P6Z-X9ZVT

A 15.52 V, 70 Wh lithium-ion battery compatible with select Yoga Slim 7 ProX models

  • Reliable power for Yoga Slim 7 ProX 14IAH7
  • 70 Whr capacity supports extended mobile use
  • 52 V 4-cell Li-ion chemistry matches OEM spec
  • Replaces multiple Lenovo part numbers including 5B11F52558

15.52V 70Whr Li-Ion Battery for Handheld PCs

This 15.52V 70Whr lithium-ion battery replaces the original power pack in compatible Lenovo Yoga Slim 7 ProX models including the 14IAH7 and 14ARH7 series. It is built for owners of those specific ultraportables who need a direct-fit replacement. Buyers with other laptop families or larger chassis designs cannot use this cell.

Thermals noise and power draw

The battery operates at its rated 15.52V without active cooling, so it adds no fan noise to the system. Normal discharge follows the 70Whr capacity specification under typical workloads. Thermal behaviour matches the original cell and stays within the laptop's existing management limits. No separate power adapter or external circuitry is required.

Highlights

  • Reliable power for Yoga Slim 7 ProX 14IAH7
  • 70 Whr capacity supports extended mobile use
  • 52 V 4-cell Li-ion chemistry matches OEM spec
  • Replaces multiple Lenovo part numbers including 5B11F52558

Specifications

BrandBTI

Questions about this item

How do I install the 15.52V 70Whr battery in a Yoga Slim 7 ProX 14IAH7 and which step do people get wrong?

Power off the laptop, remove the bottom case screws, disconnect the old battery cable before lifting it out, then connect the new 4-cell pack and reassemble; the step most often missed is unplugging the battery connector before removing the motherboard screws.

What maintenance or replacement will the 5B11F52558 battery need later?

The lithium-ion pack requires no routine maintenance; expect to replace it once capacity drops below useful levels, typically after several hundred charge cycles.

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