God. Fucking. Damn.
Did we all forget that batteries are something that are supposed to be accessible because they’re consumables, with limited lifespan? People long ago realised that once you’ve gone through your Ds in a sweet-ass boombox, you’re gonna want to stick in some more Ds.
The problem isn’t the batteries (that’s a chemistry challenge, which will take time to solve), the problem is not being able to change your battery.
The BIGGEST gripe I have with my current android phone (HTC One) is that they made it with a non-removable battery. One of the best things about android was that you can remove the battery to put in a fully-charged one. Some manufacturers also made really think batteries, with replacement back covers to accommodate them. Locking a battery inside a phone is fucking stupid - even if you can access it with specialised tools.
PS: There’s a veritable buttload (okay… maybe not veritable) of these things for sale on DX. Free shipping for Chinese made junk. Read the reviews to make sure you’re not buying a lemon.