Can you have too many external battery packs? I don't know. I think I have had over two dozens in the past 7-8 years and I keep a few in my possession and have either gifted or given away the rest. There's not enough battery juice in the world to satisfy all of my devices and those of my friends and family members. If you're in the same situation, you might benefit from Newegg Flash's deal on ZeroLemon's JuiceStick today.
This is a 9000mAh battery pack with one USB 2A port, one MicroUSB cable, and 4 LED indicators for charging level. It's nothing fancy, since there's only one USB port and it's not a QuickCharge one, but it could come in handy as a gift or hand away for a friend or relative who wouldn't need something more advanced, especially at the discounted $9.99 price. It usually retails for $24.99, which, let's face it, no one should pay for such a rudimentary battery pack. But for a tenner, why not? Shipping is free in the US for Newegg Premier customers.