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Black rectangular lithium-ion laptop battery 225.80 x 50.40 x 20.10 mm

Cameron & Co

Cameron & Co DS-CS-AC1820NB laptop battery 11.1V 4400mAh

SKU CH-KCET-W6WD3

Replacement lithium-ion battery rated 11.1 V and 4400 mAh for Acer Aspire 1820, 1825 and Timeline models

  • Product typeBattery
  • Fits Acer Aspire 1820 and 1825 series laptops
  • 1 V 4400 mAh lithium-ion cell delivers 48.84 Wh capacity
  • 100 % OEM compatible with original part numbers UM09F36 UM09F70
  • Compact 225.80 x 50.40 x 20.10 mm black housing
  • Brand-new Cameron Sino battery ready for immediate use

Cameron & Co DS-CS-AC1820NB laptop battery

This replacement battery fits Acer Aspire 1825, 1420P, 1820 and Timeline 1820 series laptops. It uses lithium-ion chemistry and delivers 4400mAh at 11.1V. The black casing matches the original form factor for a direct swap. Buyers with other Acer models or non-Acer laptops should verify compatibility before purchase.

Thermal behaviour and power draw

The 48.84Wh lithium-ion cell runs at standard laptop voltages without active cooling. Normal operation produces no audible noise because there are no moving parts. Power draw follows the host system's charging circuit and battery management firmware. Users who need extended runtime beyond this capacity will require a higher-capacity pack or an external power bank.

Included accessories and software impact

The package contains one battery unit only; no tools, screws or installation guides are supplied. Fitment relies on the laptop's existing battery latch and connector. No driver or firmware update is needed because the pack communicates through the standard smart-battery interface. Anyone expecting a hardware kit or calibration utility will need to source those separately.

How it compares

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

Price $52.99
Pricier than about 84% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-AC1820NB
Product typeBattery

Questions about this item

How do I install the DS-CS-AC1820NB battery and which step do people often miss?

Power off the laptop, unplug the charger, slide the release latch, remove the old pack, insert the new 225.80 x 50.40 x 20.10 mm unit until it clicks, then charge to 100% before first use.

What maintenance will this 4400mAh Li-ion pack need later?

No scheduled maintenance is required; calibrate by running a full discharge and full charge cycle every few months, and replace the pack when run time drops below your needs.

What limit appears first during sustained use of this 11.1V 48.84Wh battery?

The 4.4 Ah capacity sets the runtime ceiling; under continuous load the voltage will sag toward the cutoff threshold and the laptop will shut down until recharged.

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