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Rectangular black lithium-ion battery pack for Dell Inspiron Duo 1090

Cameron & Co

Cameron & Co DS-CS-DE1090NB laptop battery for Dell Inspiron Duo 1090 14.8V 1.95Ah black

SKU CH-VQB0-21ENY

Replacement lithium-ion battery for Dell Inspiron Duo 1090 convertible, 14.8 V 1.95 Ah

  • Product typeBattery
  • Compatible with Dell Inspiron Duo 1090 convertible
  • Lithium-ion chemistry delivers 1.95 Ah capacity
  • 8 V output matches original 9YXN1 specification
  • Slim 12 mm profile fits factory battery bay
  • Brand-new Cameron Sino cell rated 28.86 Wh

Replacement battery for Dell Inspiron Duo 1090

This lithium-ion pack is built for the Dell Inspiron Duo 1090 convertible and matches part numbers 9YXN1, CN-09YXN1, TR2F1 and WW12P. It delivers 14.8 V and 1.95 Ah for 28.86 Wh of capacity. The black housing measures 230.40 x 66.70 x 12.00 mm and ships brand new with 100 % OEM compatibility. Buyers needing a different voltage or a higher capacity pack should look elsewhere.

Thermal and power behaviour in daily use

The cell chemistry runs at a nominal 14.8 V and supplies up to 1950 mAh without active cooling. Normal operation stays silent because there are no moving parts and heat output remains low during typical charging and discharging cycles. Power draw follows the laptop's own management profile so the battery does not impose extra load on the system. Users expecting a fan-cooled or liquid-cooled module will not find that here.

Fit and integration in a laptop build

The pack slides into the existing battery bay of the Inspiron Duo 1090 using the original latch mechanism and connector layout. Its 12.00 mm thickness leaves the surrounding chassis clearance unchanged and no additional cables or adapters are required. The 100 % OEM-compatible design means the system recognises the battery immediately and reports charge status through the standard BIOS interface. Builders working on other Dell models or on non-convertible chassis cannot use this unit.

How it compares

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

Price $44.99
Pricier than about 77% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-DE1090NB
Product typeBattery

Questions about this item

How do I install the DS-CS-DE1090NB battery in my Inspiron Duo 1090 without damaging the connector?

Power off the laptop and disconnect the charger. Remove the base screws, lift the cover, unplug the old pack by pulling the connector straight out — not at an angle — then press the new 14.8V 1950mAh unit firmly until it clicks.

What replacement will the Li-ion 1.95 Ah pack need after extended use?

The internal cells degrade with each full charge cycle; once run-time drops below a useful level the entire 230.40 x 66.70 x 12.00 mm black battery must be swapped for a new DS-CS-DE1090NB.

Which limit appears first when the 28.86 Wh battery runs a continuous heavy load?

Voltage sag hits the protection circuit first, causing the pack to shut down before the 14.8 V nominal level can be sustained.

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