What size power bank should I buy?

What size power bank should I buy?

Start by choosing the size of your battery (aka power bank). Common sizes range from 2000mAh up to 10,000 or even 12,000 mAh. Bigger numbers mean more power, which means more recharges for your smartphone, or charging for bigger devices that need more power, like a tablet.

Which battery is best for power bank?

Lithium ion batteriesBoth Lithium ion and Lithium – Polymer are good in certain areas. We all know that power banks are packed with batteries. So, to have a clear picture about which power bank is better, let us first understand what Lithium ion batteries and Lithium-Polymer batteries mean.