Amazon.com has Eachine X3 6000mAh External Battery Power Bank w/ USB Charging Cable for $16.99 – $10.99 w/ promotional code “RGDT553C” = $6. Shipping is free with Prime or if you spend $35 or more.
- Slim enough to fit in the palm of your hand and provides 6000mAh of power with three USB output which can charge three devices simultaneously
- Smart inside charger cable design, fashion and convenient in your life
- Intelligent single-chip computer control the power,steady and high charging efficiency
- With a precise IC protector to safely avoid over-charging, over-discharging, over-loading and short circuit
- Ideal for casual use, entertainment, party, business trip and travel, works with multiple devices