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Rectangular lithium-ion laptop battery in matte black plastic, labelled 44Wh 10.86V

E-buy

E-buy 44Wh 10.86V laptop battery F15 40064155

SKU CH-6PWW-47E0C

44 Wh lithium-ion replacement battery at 10.86 V for Medion Akoya S6425, S6426 and P6685, LG 15U370 and Maibenben Xiaomai 5/6 Pro laptops

  • Battery TypeLithium-Ion
  • 44Wh capacity extends runtime for MEDION Akoya S6426/S6425/P6685
  • 86V lithium-ion cells deliver stable power without memory effect
  • Compatible with LG 15U370 and MAIBENBEN XIAOMAI 5/6 Pro models
  • Replaces part numbers 40064155, F15, MD61230, MD61850, MD62600, MD62950
  • Includes installation tool for straightforward battery replacement

Replacement Battery for MEDION Akoya S6425

This 44Wh lithium-ion cell restores mobility to MEDION Akoya S6425 and S6426 notebooks along with LG 15U370 and MAIBENBEN XIAOMAI 5 Pro and 6 Pro models. It operates at 10.86V and delivers 4090mAh of rated capacity. The part carries numbers 40064155 and F15 for direct cross-reference. Buyers needing a different voltage or form factor should look elsewhere.

Build Quality and Daily Use

Fresh lithium-ion chemistry eliminates memory effect so the pack holds charge after repeated cycles. Integrated circuitry guards against overcharging, overheating and short circuits to protect both the battery and the host laptop. An installation tool ships in the box to simplify the swap without sourcing extra screwdrivers. Technicians who prefer soldered or non-removable packs will find this design unsuitable.

Practical Limits of the Li-ion Standard

Capacity gradually declines with each full charge cycle, a normal characteristic of lithium-ion technology. Runtime varies with screen brightness, workload and power-management settings so the 44Wh rating represents a ceiling rather than a guarantee. The pack fits only the listed MEDION Akoya, LG and MAIBENBEN chassis; other 10.86V batteries with different dimensions or connector pinouts will not seat correctly.

Highlights

  • 44Wh capacity extends runtime for MEDION Akoya S6426/S6425/P6685
  • 86V lithium-ion cells deliver stable power without memory effect
  • Compatible with LG 15U370 and MAIBENBEN XIAOMAI 5/6 Pro models
  • Replaces part numbers 40064155, F15, MD61230, MD61850, MD62600, MD62950
  • Includes installation tool for straightforward battery replacement

Specifications

Battery TypeLithium-Ion

Questions about this item

Does the 10.86V rating limit the charge capacity of the 44Wh battery?

The 10.86V voltage works with the 4090mAh cells to deliver the full 44Wh capacity; it does not restrict the energy the pack can store.

What physical space does the F15 battery need inside a MEDION Akoya S6425 or LG 15U370?

The F15 form factor fits the original battery bay of the listed models with no extra brackets or adapters required.

How is the 40064155 battery installed and which step do people skip?

Power off, unplug, remove the bottom case screws, disconnect the old pack, connect the new one, then re-secure the case; the step often missed is reconnecting the battery cable firmly before closing the chassis.

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