To find a replacement battery, I simply searched eBay for "iPhone 4S replacement battery." A number of top-rated sellers were offering that product, along with a mini-tool kit, for $8-$10.

(The 4S battery kit is cheaper at $16.99.) Of course, remember that if you take your phone apart and replace the battery with unofficial parts, Apple likely will refuse to service your device.

The iPhone 4S already has pretty good battery life, but if you plan to use it heavily, or to take it on vacation, you’ll want to know how to squeeze every last bit of power out of the iPhone.

A trip to Apple's Genius Bar yields a tip on how to get better battery life out of the iPhone 4S: Turn it off ...

But a quote we got from Animacs, a highly reputable Peterborough-based repair centre, was just £10 to replace an iPhone 4S battery, which includes labour costs.

Apple’s battery replacement program ended on December 31, 2018, and they raised the price of their battery service from $29 to $49 (or $69, depending on your model). That blows.

As previously seen, the iPhone 5 battery runs at 3.8 volts, potentially using new chemistry to boost capacity to 5.45 watt-hours from the 3.7-volt 5.30 watt-hour battery used in the iPhone 4S.

The iPhone 5 design is easier to access and thus easier to repair, says a teardown site. Inside the phone, there is a larger-capacity battery and key new chips like Qualcomm's 4G LTE silicon.

Almost equivalent to my 3GS and it’s [sic] terrible battery life,” wrote a user on Apple’s support forums a day after the iPhone 4S debuted, kickstarting a thread that’s seen 2,622 replies ...

If you're interested in maximizing the time your iPhone's battery remains healthy to minimize replacement needs, optimize performance, and maximize use hours, you've come to the right place. Related ...

I ordered an iPhone 4S and received it on launch day. When I plug it into the charger, it will charge to 100%, stay there for a while, then begin to eat the battery. The battery will discharge ...

Hi, my battery life has completely gone to hell since installing iOS 7. The only thing I can add, battery life is normal if I turn Wi-Fi off. Anyone else observing this? Trying to figure out if ...