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Black rectangular laptop battery with smooth finish

Cameron & Co

Cameron & Co DS-CS-HPE850NB laptop battery 4.5 Ah

SKU CH-A99J-Q5DJX

Li-Polymer 4.5 Ah replacement battery for HP EliteBook 840 G1, 745 G2, 755 G2 and Elite x2 1011 G1

  • TypeBattery
  • 5 Ah capacity powers EliteBook 840 G1 through long work sessions
  • Li-Polymer chemistry holds charge reliably across EliteBook 745 G2 variants
  • Black finish matches original HP EliteBook 850 aesthetics
  • New condition ensures full cycle life from first install
  • Direct replacement for HP part numbers E7U24AA and CO06XL

Cameron Sino DS-CS-HPE850NB 4.5 Ah laptop battery

This Cameron Sino DS-CS-HPE850NB lithium-polymer battery replaces the original HP E7U24AA pack in EliteBook 840 G1, EliteBook 850 and Elite x2 1011 G1 models. It targets owners of those machines who need a new power source because the factory cell no longer holds charge.

Li-Polymer chemistry runs cool with no memory effect

The Li-Polymer design produces less heat than older cylindrical packs during normal charge and discharge cycles. Internal resistance stays low so the laptop fan spins less often and the system draws steady current without voltage sag.

Direct-fit shape needs no extra parts

The black casing matches the original footprint and connector layout so the battery clicks into the compartment without adapters, shims or software tools. Buyers who need a higher capacity than 4.5 Ah or a different voltage must choose another model.

Highlights

  • 5 Ah capacity powers EliteBook 840 G1 through long work sessions
  • Li-Polymer chemistry holds charge reliably across EliteBook 745 G2 variants
  • Black finish matches original HP EliteBook 850 aesthetics
  • New condition ensures full cycle life from first install
  • Direct replacement for HP part numbers E7U24AA and CO06XL

Specifications

BrandCameron Sino
ModelDS-CS-HPE850NB
TypeBattery

Questions about this item

How do I install the DS-CS-HPE850NB battery in my EliteBook 840 G1, and which step do people get wrong?

Power off the laptop, remove the AC adapter, release the battery latch, slide the old pack out, insert the new 4.5 Ah pack until the latch clicks, then reconnect power. The step people miss is fully seating the latch before turning the machine on.

What maintenance or replacement will the Li-Polymer 4.5 Ah pack need later?

Li-Polymer cells do not require scheduled maintenance; plan to replace the pack when run-time drops below your needs, typically after several hundred charge cycles.

What limit appears first during sustained heavy use of this battery?

The 4.5 Ah capacity sets the runtime ceiling; under continuous high load the pack will deplete before any thermal or voltage limit is reached.

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