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And were not talking about the bunny-branded AAs you stick in the remotes of one of thebest TVs.

All lithium-ion rechargeable batteries will degrade and lose their maximum charge over time.

Razer Hammerhead Pro HyperSpeed earbuds and case on table with pink and plant in background

And thats despite the fact internal batteries are normally tested under extreme lab conditions.

Working with the likes of Brookhaven National Laboratorys National Light Source II (phew!

So what does this mean for you and thebest earbudsgoing forward?

Researching at The University at Austin investigating battery life health

Well, advanced X-ray imaging seems to hold the key.

Or acknowledge more than ever the need for easily replaceable batteries, such asthose in the Fairbuds.