This is a Dewalt 5ah battery and charger bundle.

DCB184:

The DEWALT DCB184 5.0Ah XR Li-Ion battery pack will deliver 66% more runtime than a standard 3.0Ah battery pack. It has an LED state of charge indicator to help manage pack charging. Has a lightweight design that provides the user with upgraded 5.0Ah Power without increasing the size or weight over the 18 Volt 3.0Ah battery pack.

No memory effect and virtually no self-discharge for maximum productivity & less downtime. They have protection against overheating, overloading and deep discharge conditions which increases the overall battery life.

Compatible with all DEWALT XR Li-Ion 18 Volt Tools.

DCB1102:

Compact multi voltage charger charges all 18v XR batteries and the 12v battery packs.

2 stage charging system

Bright LED indicator to show, charged / charging / power problem and battery too hot or too cold

Charger varies charge rate according to battery type, increasing battery pack life