[sdiy] advice on creating power for small wearables? batteries ? solar ? Etc

[Scott Young]

I read a great piece of advice which I think came from notable wearables expert Sophie Wong - if it’s for something for yourself, lipo batteries are the best option because they’re small & rechargeable, but if it’s for something you’re going to sell then go for ‘normal’ AA / AAA/ coin cell batteries. This is because Lipo require special chargers which normal ‘consumers’ won’t have, but if you’re using it yourself they’re great if you want to hide the battery.

I use lipos all the time in my projects.  Great for exactly what you’re describing , micro controller and a few leds.

Cheers,
Scott.

Sent from my iPhone

> On 7 Oct 2020, at 18:30, Daniel Roberts <danmroberts at gmail.com> wrote:
> 
> 
> For a one-off or small quantity project, Adafruit has a lot of small rechargeable batteries, as well as boards to manage charging: https://www.adafruit.com/category/138
> 
>> On Wed, Oct 7, 2020 at 12:46 PM Dan Snazelle <subjectivity at hotmail.com> wrote:
>> Hello 
>> 
>> I am working on a project that is quite small. I would love some advice on which coin or flat  batteries are good , small and have a decent output ..I would love to be able to drive leds, a 3.3v uprocessor, maybe a small speaker but of course AA batteries or a 9v are too big for this 
>> 
>> another possibility is a storage battery with a solar cell that continually charges the battery—I have never tried this and once again any advice would be great.
>> 
>> obviously it’s possible as the Apple Watch has quite a small footprint yet is able to drive a screen and a microprocessor. i suppose a tiny dc to dc converter could help
>> Too 
>> 
>> I see other examples all over the place I’ve just never been in a position where I needed something very small and instead of going through thousands of entries online I figured I would ask the community first 
>> 
>> 
>> THANKS FOR ANY HELP 
>> 
>> 
>> 
>> 
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