Regarding #2 the fact that probably the majority of battery-powered non-toy devices now are designed not to ever have their battery serviced is indicative of a (in my opinion) diseased mindset of disposability. Each of the components including battery and other wear parts are only spec'd to last about 12-18 months. We're being conditioned (by one-year warranties and by the lack of repairability) to think that it's normal and expected that you discard and replace everything smaller than a car every 18-36 months, and a car every 7 years or so because "obviously" anything older than these milestones is "obsolete anyway."