When you have an aging iPhone that‘s perfectly fine except for one thing: the battery. These days you‘re lucky to make it to mid-afternoon before the power gives out. A common dilemma.


Always, all phone batteries lose capacity over time. You‘ll probably first start to notice it after a year, then really notice it after 18 months. Once it gets intolerable, you have only a few options:
A.Buy a new phone
B.Start using a battery case
C.Replace the battery
Buying a new phone seems ridiculous, especially given the price. And the last few iPhone models have afforded little more than small boosts in speed and camera quality -- hardly compelling reasons to upgrade, in my opinion.
A battery case can help, but it‘ll add bulk and weight to your phone while forcing you to switch from Lightning cables to Micro-USB. Both are hassles.
That leaves replacing the battery, which is not an easy solution. But it‘s the best one, because a new battery will effectively buy your iPhone another couple years of useful service. The only question is whether to do the job yourself or seek out a profession.
But first: Check the warranty

Because replacing the battery involves cracking open the iPhone, it‘s only logical to ask: Won‘t this void my warranty? If the phone is more than a year old, the warranty has already expired -- unless you purchased an extended AppleCare+ plan, in which case you may be entitled to a free battery replacement from Apple.
But assuming you‘re post-coverage, it doesn‘t matter if you go DIY or third party. However, if you hire a service or shop to replace the battery, you may receive a warranty on that repair -- something you won‘t get if you do the work yourself.
The DIY option

How hard can it be to replace an iPhone battery? Remove some screws, open up the case, take out the old battery, plug in the new one and you‘re done, right?

Right. Except those screws are tiny. The case is hard to get open. Inside, you have to remove a bunch more screws and some fragile ribbon cables just to get to the battery. Which is glued in place. Then you have to do it all in reverse.
If you‘ve never ventured inside an iPhone before, this can be some nerve-wracking surgery. It helps to have video-tutorial guidance (see below), but trust me when I say it‘s easy to make a mistake. And if you flub along the way, you‘ll brick your phone.
The DIY option, however, is definitely the cheapest -- even if it only saves you about $20. Replacement battery kits are available from huarigor‘s online shop, most of them priced anywhere from $10-$30. Personally, I recommend spending a few dollars more to buy from a reputable (and customer-reviewed) vendor on Huarigor.