This is a generic, equivalent one, 100% compatible. This 4V Replacement Li-ion battery is designed to compatible with Milwaukee 48-11-0490, 0490-20, 0490-22.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 4V
* Battery Capacity: 3500mAh
* Chemistry: Li-ion
* Dimension: 37.55 x 81.90 mm
* Weight: 123.70 g
* Condition: new, 1 Year Warranty!
* It is easy to use, convenient to carry with.
* No memory effect, Integrated microchip prevents overcharging & lengthens battery life.

Compatible Part Numbers:
48-11-0490

Compatible with the following Milwaukee Power Tools models:
For Milwaukee 0490-20,
For Milwaukee 0490-22

NOTE:
1.The battery must be FULLY charged before first use.
2. The battery is stored in a cool and dry place.
3. Do not Separation, extrusion, and impact.
4. Do not put battery into water and fire.
5. Keep away from children.