This is a SmarToools RB40 AA 1.5V Rechargeable Battery (4-Piece Set) with the following details:

Product Features:

Brand: SmarToools

Model: RB40

Type: AA Rechargeable Battery

Voltage: 1.5V

Capacity: 2600mWh

Recharge Cycle: Up to 1200 times

Charging Time: ~1.5 hours

Charging Port: Type-C USB

Included Accessories: Type-C charging cable

Advantages:

Fast Charging: Charges fully in about 1.5 hours.

Eco-Friendly & Cost-Effective: Can be recharged multiple times, reducing battery waste.

Consistent Power: Maintains a stable 1.5V output, ideal for high-drain devices like cameras, remotes, and gaming controllers.

Built-in Protection: Prevents overcharging, over-discharging, and short circuits.