How to run DC 12 volts power adapter without AC outlet?

I have small electrical item… Its electrical plug which I call adapter output is DC 12 volts… So when I plug this adapter into AC outlet of 220 volts… My item starts running.
Now I need to run this item at remote location where there's no electricity… Possibly for one hour or more… I have power bank to charge my iPhone… Can I use that… Or can I run it thu normal alkaline batteries… Can i run it by car battery… Need some easier and simpler solution.

Will Apple replace a legally jailbroken iPhone?

I know that jailbreaking an iPhone will void your warranty. But I also know jailbreaking is not illegal as long as you don't get paid stuff for free. I plan on just using jailbreak just for tweaks alone, which is not illegal as far as I know. So under these circumstances, which everything is done LEGALLY as the DMCA states, will Apple replace my iPhone 5s which is still under the warrantly if it breaks?

My phone currently has a camera problem as well so if I want to get that fixed should I just get it fixed then jailbreak, just jailbreak and fix it when I actually need to, or wait till warranty is over then jailbreak. My warranty ends in 4 more months and I don't think I can wait that long.

Added (1). If I jailbreak it now and unjailbreak it later to get my phone fixed, will Apple be able to detect that it's been jailbroken and unjailbroken before? Also how do you back up everything including apps' data and all you progress in games like angry birds since neither iTunes nor iClouds backup saves those kinds of data.

How to make an Iphone 5 look more like the iPhone 5s?

I'm will buy an iphone 5
But can't afford the iPhone 5s so I would like to make it look like the 5s by change the home button and I found a few on eBay but looking at the pictures they look thick can anyone please check out a button sort of sticker under £5 that you know isn't thick and is almost identical to the 5s and doesn't matter the colour.

Can't transfer pictures from iphone to computer anymore?

I thing on my computer used to always pop up when i plugged in my iphone asking if i wanted to import photos and a few other choices like view photos, but recently just stopped and the phone doesn't show when i click "my computer" either so i don't know how to get the pictures offmy phone anymore. It still syncs to itunes and charges, but i can't get the pictures.

Added (1). *A thing

Why does my iPhone 5c battery die so fast?

It started dying when my charger started messing up. Like I have to turn my charger a certain way. But I ordered a new charger, it's currently being shipped to my home. Also when my phone is on lockscreen and I come back to it my phone battery percentage be down a lot. My brightness is down, and I close my background apps. And turn Wi-Fi off when I don't need it. What's is wrong?

Looking for an exercise app?

I need an app for iPhone that is good for motivating at home exercise. I don't have much equipment and I would love to exercise while watching tv. Any good suggestions?

Good jailbreak system for iphone 5?

I tried to download Cydia, but i don't want to pay $10 a month for a membership. Without paying, i can't download any games from it. Is there any way around this, or are there other good jailbreaks that don't cost money?
(I was mainly going to use it for the premium items in Simpsons Tapped Out)