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Black rectangular lithium-ion laptop battery pack, new condition

KingSener

KingSener 45N1070 46Wh 14.8V laptop battery for ThinkPad X1 Carbon 3444 3448 3460

SKU CH-CN33-S9JX8 MPN 45N1070

Replacement lithium-ion battery delivers 46 Wh at 14.8 V for compatible ThinkPad X1 Carbon models

  • ColorBlack
  • TypeBattery
  • Compatibility3.11Ah 46WH
  • Battery TypeLithium-Ion
  • Battery Voltage14.8V
  • Battery Capacity3.11Ah
  • 46Wh capacity supports longer work sessions away from power
  • 8V lithium-ion chemistry matches original ThinkPad specifications
  • Replaces part numbers 45N1070 45N1071 4ICP4/56/128 for exact fit
  • Compatible with ThinkPad X1 Carbon 3444 3448 3460 models
  • 100% brand new cells deliver reliable performance from first charge

Drop-in replacement for X1 Carbon

This 46Wh lithium-ion battery replaces the original 45N1070 and 45N1071 packs in ThinkPad X1 Carbon models 3443, 3444, 3446, 3448 and 3460. It delivers 3.11Ah at 14.8V and fits the same chassis without modification. The cell is manufactured in China and supplied as a brand-new unit.

Cool operation under daily loads

Normal office workloads keep the pack at low discharge rates so internal resistance stays minimal and the cells run cool. No active cooling is required and the battery adds no audible noise to the silent ultrabook design. Power draw follows the laptop’s own management profile without extra drain.

Steady output through long sessions

Sustained use such as video playback or compile jobs draws a constant current that the 3.11Ah capacity supports without voltage sag. The pack maintains its rated 14.8V through the discharge curve so performance does not throttle early. Users who need multiple full-day cycles between charges should consider a higher-capacity alternative.

Highlights

  • 46Wh capacity supports longer work sessions away from power
  • 8V lithium-ion chemistry matches original ThinkPad specifications
  • Replaces part numbers 45N1070 45N1071 4ICP4/56/128 for exact fit
  • Compatible with ThinkPad X1 Carbon 3444 3448 3460 models
  • 100% brand new cells deliver reliable performance from first charge

Specifications

BrandKingsener
Model45N1070
Part Number45N1070
ColorBlack
TypeBattery
Compatibility3.11Ah 46WH
Battery TypeLithium-Ion
Battery Voltage14.8V
Battery Capacity3.11Ah

Questions about this item

How do I install the 45N1070 battery in my ThinkPad X1 Carbon 3444?

Power off the laptop, disconnect the AC adapter, remove the bottom case screws, detach the old battery connector, fit the 45N1070 using the original screws, reconnect the cable, and reassemble; the step often missed is reconnecting the battery cable before closing the case.

What maintenance or replacement will the 45N1070 need later?

The 46Wh lithium-ion pack will lose capacity over charge cycles; when run time drops below your needs, replace the entire 45N1070 unit as cells are not user-serviceable.

What limit appears first under sustained use of the 45N1070?

The 3.11Ah capacity determines runtime; under continuous load the pack will deplete before any thermal or voltage limit is reached.

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