Samsung confirmed today that a replacement battery for the new Galaxy S6 ($325.09 at Amazon) and Galaxy S6 Edge (779.99 For the latest plan and device pricing: 844-235-3939 at T-Mobile) will cost $45, while replacements can be done in one business day.

The S6 is the first flagship Samsung smartphone in several years with a sealed-in battery, and the choice to go to an integrated battery was controversial with some longtime Galaxy S owners.

According to a Samsung spokesperson in touch with the company's support team, the Galaxy S6 battery has a one-year warranty. If its maximum capacity drops below 80 percent of its initial level during that year, your replacement is free (although you still have to pay for shipping.) At any other time, the replacement costs $45, plus shipping, though Samsung did not detail shipping costs.

That's less than the $79 Apple charges for an iPhone battery replacement, but more than the official $29.99 price for a Galaxy S5 battery.

Samsung will verify the battery capacity at its service center, but you can also download an app like MyDroid System Info to check your battery health.

Samsung has walk-in repair centers in Los Angeles and Plano, Texas that don't require shipping and do same-day battery swaps, the company said. Samsung is looking to establish those centers in more cities.

Related S6 Edge Not Cheap for Samsung to Make

Screen replacements, meanwhile, cost $199 for the Galaxy S6 and S6 Edge. That's more than the $109 Apple charges for iPhone 6 screen repair, but less than the $299 Apple charges for repairs that involve more than the screen. Samsung screen replacements also have a one-day turnaround.

There's no solution for adding a MicroSD card slot to the phone, though you could use a plug-in drive like the Leef Bridge ($29.99 at ThinkGeek) , or a wireless drive like the Toshiba Canvio.

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