With a built-in battery, this plastic case chargers you S4 and protects it at the same time. The case is sturdily constructed for a long service life. There are different attractive colors for you to choose from.

• Battery case for Samsung Galaxy S4.
• Material: ABS and PC.
• Weight: 120g.
• Cell type: Li-polymer.
• Battery input: DC 5V 1A.
• Output: DC 5V, 0.8A.
• Real capacity: 3,000mAh.
• Battery case charging time: 5 hours.
• Charging time: 1.5 hours.
• Standby time: 390 hours.
• Service life: 500 cycles or 1 year.