Generally speaking, bigger power banks are heavier since they are essentially carrying extra batteries. However, some brands manage to squeeze the components and improve the battery technology to achieve a lighter power bank. That’s pretty much the case for Anker 325.

• It has a 20.000mAh capacity and only 342 grams, roughly the weight of two smartphones
• Capable of fully recharging multiple smartphones and tablets
• USB-C and Micro USB inputs let you choose how to recharge the device
• The VoltageBoost technology automatically optimizes the power based on the connected devices