eForcity 1300mAh Battery and Screwdriver Kit for 4GB/6GB iPod mini Keep the music playing on your iPod with this replacement battery. This is a high capacity, rechargeable Li-Ion (Lithium Ion) battery with premium cell. Voltage: 3.7 V. Weight: 2.5 oz. Dimension: 1.55 x 1.13 X 0.13 inches. Keep the music playing on your iPod with this replacement battery. Voltage: 3.7 V. Weight: 2.5 oz. Dimension: 1.55 x 1.13 X 0.13 inches. Note: A technician is recommended for installation. Our company is not responsible for any damage caused by installation of this accessory. Compatible With Apple: iPod Mini 4GB/6GB.