Laptop battery / accu DJ1J0 Dell Latitude 7280 7290 7380 7390 7480 7490 DE127V2

The Green Cell Standard laptop battery (DJ1J0) is a precisely engineered replacement for the Dell Latitude 7xxx sorozat series. Powered by Green Cell Li-Ion / Li-Polymer cells, it delivers real capacity and long runtime — not just on paper.

Why choose this battery?

• Guaranteed compatibility – precisely designed to fit the Dell Latitude 7xxx sorozat series
• Real capacity – 3685 mAh (52Wh) of genuine, measurable performance
• Green Cell cells – proprietary, reliable Li-Ion / Li-Polymer cell technology
• Built-in protection – overcharge and over-discharge protection
• Plug & Play – connect and use immediately, no configuration required
• 12-month warranty – backed by Green Cell customer support

Compatible models

This battery is compatible with the following Dell models:

Latitude 7280, 7290, 7380, 7390, 7480, 7490

Manufacturer part number: DJ1J0

Technical specifications

Frequently asked questions

Will this battery fit my exact laptop model?
Yes – every battery undergoes physical and electronic compatibility verification during development. This battery precisely fits all listed Dell Latitude 7xxx sorozat models and follows the original charging protocol.

How long will the battery last on a single charge?
Actual runtime depends on usage (screen brightness, CPU load, Wi-Fi), but the 3685 mAh capacity typically covers a full working day for standard office tasks. It reaches peak performance after the first few charge cycles.

How can I extend the battery's lifespan?
Avoid regularly keeping it at 100% charge or letting it fully discharge. The 20–80% range is easiest on the cells. Before storage, charge to around 50% and keep in a cool, dry place.