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Black rectangular lithium-ion battery pack with connector ribbon

Beisite

Beisite 00HW045 00HW046 37Wh laptop battery for ThinkPad X1 Tablet Gen 1 2 Gen 2

SKU CH-J49G-25DK9

A 37 Wh lithium-ion replacement battery for ThinkPad X1 Tablet Gen 1 and Gen 2 models

  • Battery typeLithium-Ion
  • Battery voltage rating7.64 V / 7.5 V
  • Battery capacity37 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor Thinkpad X1 Tablet 12 in Gen 1 2016 (20GG) (20JC) Gen 2
  • 37Wh capacity powers the ThinkPad X1 Tablet through a full work day
  • Lithium-ion chemistry delivers reliable recharge cycles
  • Fits both Gen 1 2016 and Gen 2 2017 models
  • Replaces part numbers 00HW045, 00HW046, 2ICP4/85/101 and more
  • Ships as either 7.64V or 7.5V variant depending on stock

Replacement Battery for ThinkPad X1 Tablet Gen 1

This new lithium-ion battery replaces part numbers 00HW045 and 00HW046 in Lenovo ThinkPad X1 Tablet Gen 1 2016 and Gen 2 2017 models. It delivers a capacity of 37Wh at 7.64V or 7.5V depending on the unit shipped. The black pack fits the extensive list of 20GG and 20GH series sub-models.

Sustained Load Behaviour

The cell chemistry provides stable output during long work sessions without the voltage sag seen in aged original packs. Rated at 37Wh, it supports typical office workloads across a full charge cycle. The supplier notes that 00HW045 and 00HW046 are interchangeable despite the nominal voltage difference.

Installation Notes

Replacement requires opening the tablet chassis and disconnecting the internal battery connector before fitting the new pack. Common issues include stripped case screws and damaged ribbon cables if the display assembly is forced. Verify the exact part number on the old battery before ordering to match the 2ICP4/85/101 form factor.

How it compares

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

Price $29.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

Product
Brand name00HW045 00HW046
Model name00HW045 00HW046
Part number2ICP4/85/101
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating7.64 V / 7.5 V
Battery capacity37 Wh
Compatibility
Compatible withFor Thinkpad X1 Tablet 12 in Gen 1 2016 (20GG) (20JC) Gen 2 2017

Questions about this item

Does the 37Wh lithium-ion cell generate noticeable heat during a full day of use?

The 37Wh lithium-ion battery runs at normal operating temperatures for a 7.64V or 7.5V cell inside the ThinkPad X1 Tablet Gen 1 or Gen 2 chassis.

What must I already own for this 00HW045 or 00HW046 pack to work?

You need a Lenovo ThinkPad X1 Tablet Gen 1 2016 (20GG, 20JC) or Gen 2 2017 (20GH, 20JB) that accepts part numbers 2ICP4/85/101, PP21AT149-5, SB10J78993 or SB10J78994.

Will this replacement fit the original battery bay on my 2016 ThinkPad X1 Tablet without modification?

Yes, the pack matches the 00HW045 and 00HW046 form factor and connects to the existing connector on Gen 1 (20GG, 20JC) and Gen 2 (20GH, 20JB) models.

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