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Black rectangular lithium-ion laptop battery with connector pins

Beisite

Beisite 00HW028/00HW029 56Wh 15.2V laptop battery

SKU CH-HGQ1-TAGHR

Replacement lithium-ion battery rated 56 Wh at 15.2 V for ThinkPad X1 Carbon 4th and X1 Yoga Gen 1 models from 2016

  • Battery typeLithium-Ion
  • Battery voltage rating15.2 V
  • Battery capacity56 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor ThinkPad X1C Yoga Gen 1 Carbon 4th(2016)
  • 56Wh capacity powers ThinkPad X1 Carbon 4th and X1 Yoga Gen 1 through a full workday
  • 2V lithium-ion chemistry matches original Lenovo specifications for safe operation
  • Replaces Lenovo part numbers 00HW028, 00HW029, 01AV409, 01AV410 and 01AV438
  • Fits multiple 2016 ThinkPad X1 Carbon and X1 Yoga sub-models including 20FC, 20FQ and 20FR series
  • Brand new condition with black finish installs directly into the existing battery bay

Replacement battery for ThinkPad X1 Carbon 4th

This 56Wh lithium-ion pack operates at 15.2V and replaces Lenovo part numbers 00HW028, 00HW029, 01AV409, 01AV410, 01AV438 and others. It fits the ThinkPad X1 Carbon 4th generation 2016 models and the ThinkPad X1 Yoga 1st generation models listed in the compatibility data. The black battery is supplied new with a 12-month warranty.

Voltage and capacity limits for daily use

The cell chemistry delivers 56Wh at a fixed 15.2V output, so runtime scales directly with the laptop's power draw. Systems running sustained high loads will deplete the pack faster than light office workloads. The battery is not a higher-capacity upgrade; it matches the original 56Wh specification. Users who need longer unplugged time between charges cannot meet that need with this part.

Straightforward swap with one compatibility check

Installation requires removing the bottom case screws, disconnecting the old pack and connecting the new one in its place. The connector and mounting points align with the factory design for the listed models. Because the supplier ships either the 00HW028 or 00HW029 variant depending on stock, verify the part number on the original battery before ordering if your service manual specifies only one of the two.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $38.99
Pricier than about 70% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand name00HW028 00HW029
Model name00HW028 00HW029
Part number4ICP4/48/123
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating15.2 V
Battery capacity56 Wh
Compatibility
Compatible withFor ThinkPad X1C Yoga Gen 1 Carbon 4th(2016)

Questions about this item

Which part number should I pick — 00HW028 or 00HW029 — for my ThinkPad X1 Carbon 4th?

Both part numbers are cross-compatible; the supplier ships whichever is in stock and they fit the same laptops.

What does the 56Wh rating mean for daily runtime on a ThinkPad X1 Yoga Gen 1?

It matches the original 56Wh specification, so you can expect the same battery life the laptop delivered when new.

Does the 15.2V voltage limit compatibility with any of the listed ThinkPad models?

No — the manufacturer notes that 00HW028 and 00HW029 are compatible with each other despite voltage differences and both suit every model listed.

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