Does your smartphone battery last the whole day?   While battery life has generally improved with the latest devices…depending how you use your phone you may just need a backup power source…just in case.

Walk into any electronics store or online marketplace and you’ll see plenty of power bank products…but choosing the right one just comes down to one number?

Look for the Milliamp Hour rating…that’s a number with the letters mAh at the end.  The higher that number, the more energy is stored in the battery. A 10 thousand mAh power bank would give you the ability to recharge your device multiple times.

Be weary of power banks that have a lower mAh rating as while they cost less they may not have the capacity to fully charge your phone even once.