The most indispensable accessory for your Sprint PCD EC5072 3G/4G Express Mobile Hotspot is the battery. Unless you are need of a paper weight even the most advanced device is useless without power. Use this original Huawei BTR5072B Battery as a replacement or spare to extend the usage of your hotspot. Keep your wifi hotspot working at optimum performance levels at all times. Just pop the Huawei BTR5072B Battery in your pocket or bag and you’re good to go that extra mile, accessing internet wherever you please.