Mugen Power Extended Battery w/ Battery Cover for Verizon Jetpack 4G LTE Mobile Hotspot MiFi 4620L Mugen Power Extended Battery w/ Battery Cover for Verizon Jetpack 4G LTE Mobile Hotspot MiFi 4620L / Novatel MiFi 4620L 5,000mAh, 3.7V power rating Lithium-ion technology Comes with an extended battery cover door that accommodates the extended battery Compatible with Verizon Jetpack 4G LTE Mobile Hotspot MiFi 4620L by Novatel