Amazon.com: Huawei E5577s-321 150 Mbps 4G LTE Mobile WiFi Hotspot (4G LTE in Europe, Asia, Middle East, Africa & 3G Globally) Unlocked/OEM/Original from Huawei Without Carrier Logo (Black) : Electronics
Amazon.co.jp: Rowa Japan E5577 Y! Mobile Compatible HWBBN1 HWBBK1 Compatible Battery (Set of 2) and USB Charger, Softbank Compatible, 504HW, 505HW, Huawei Compatible : Electronics
Battery for Huawei E5577 E5577Bs-937 E5577s-321 HB824666RBC – Indclues