Richard B
Active Member
If there's one concern I have about this sonic going in, it's this: what do we do when the battery inevitably dies? Is there any kind of battery replacement program? Is it a custom design, or are there off-the-shelf units that we could use to replace it ourselves? Etc, etc.
That's a fair concern - the lithium polymer battery is a custom design and it's not user-accessible.
The battery is rated to hold 80% of its initial capacity after 300 charge/discharge cycles, and we expect that for average usage, the product will run for around 5 days between charges, so the battery should reach this 80% point after around 4 years and still be perfectly usable after 10 years. Of course, most people won't continue to use the product every day for years, so it's unlikely that they'll ever "wear out" the battery.
Of course, not all manufacturers' products actually meet their own specifications, but we chose to spend the extra money buying a battery from one of the high-quality LiPo manufacturers, rather than just going for the cheapest option. Having visited their factory (where I saw them making similar batteries for a wrist-worn fitness device for an extremely well-known brand), I'm confident that they really do have a quality-focussed approach to manufacture.
I hope that helps and makes sense.
Cheers,
Richard