Please note that E5520 E5540 E5550 E6320 E6400 can have both 2 pin or 3 pin connector so check your original battery first for comparison (especially the connector!)


2 Pin DELL BIOS CMOS battery ( Please check your connector tip some models can have 3 pin )

  • 100% new product
  • 100% high-quality battery with a high capacity

Delivery contents: 

    • 1 x CMOS Battery

Technical details:

    • Socket type: 2pin version
    • Cable length: 5cm
    • Nominal voltage: 3V
    • Nominal capacity: 220mAh
    • Recommended continuous drain: 0.2mA
    • Recommended pulse drain: 16mA
    • Diameter: 20.0mm
    • Height: 3.20mm
    • Weight: 3.0g
    • Low self-discharge rate and stable discharge voltage
    • Wide working temperature range: -20 to 60°C

Please check all the specs and ensure this battery meets your devices' needs

Please be aware that Many DELL laptops have 2 or 3 Pin connector types even they are same model so please be sure your laptop needs a 2 pin connector and not 3 pin

It may be suitable for many other models

Please note that in my recent batches of batteries that I order directly from the factory that manufacture them I have requested no printing or writing on the outer plastic shrink wrap since they sometimes came with specific part numbers relating to specific laptop models and I wanted to remove that confusion for customers – The photo is for illustration purposes only







ref BM382