Have you heard of these things? Apparently they're some sort of battery extension for prolonged battery life. I was about to buy one because as we all know, all our phones are draining battery like crazy. But I'm not so sure if they're really worth the purchase, have you tried one?
Yes, I've tried the powerbank of one office mate. We were on our way home on a business trip when my phone was trained. I couldn't contact my dad who was supposed to pick me up at a certain location. Fortunately, my office mate had his power bank with him and I had my charger with me. I used the powerbank to charge my phone up to 15%. Is a powerbank worth the purchase? Yes, if you're always on the go. You'll need it to charge your mobile devices (tablet, phone...)... But make sure that the powerbank that you would purchase is durable. The powerbank of my office mate only lasted for about 7 months.
