External battery VANSON PA-2000, from 4 AA cells

Weight: 60 g
Brand: Vanson
Description: Capacity: 2000 mAh, max. output current: 1A, weight: 60g
Type: Portable accumulator
Capacity: 2000 mAh
Protection: Against short circuit
Max. output current: 1 A
Output connectors: USB Type-A