external power bank instead of replacing battery?
The battery on my exactly three-year-old iPhone 5C has failed. Despite saying that I have as much as 85% battery life left sometimes, it just shuts down. Sometimes I can revive it if I wait a few minutes and often just plugging it in a few minutes gives me hours of life, but I'm not always somewhere that I can do that. So it is unreliable and unusable. I was quoted almost £75 to replace the battery. Considering that this phone is garbage and has given me nothing but grief since the day I got it, I'm eager to replace it with something better when I get home in a few months from almost a year of travel and loathe to spend that kind of money that I could put towards a newer phone.
So what I thought to do instead was to get an external power bank that I will be able to use with my next phone, with the idea being that when my stupid phone conks out when "fully charged" I could plug it into the external power pack to revive it, like I would by plugging the phone into a wall socket. Is that something that could work or do those things need a good battery?
If this idea could work, can anyone recommend a power pack that is pretty much guaranteed to work with a 5C? Another quirk of this delightful device is that it is even worse than my other Apple products at accepting non-Apple peripherals (eg. I've tried 10 different car chargers and it wouldn't work with any of them).
Thank you,
Rae
iPhone 5c