Most devices & gadgets are rechargeable nowadays. The only thing I have that still requires batteries is a headlamp but even those are available in rechargeable varieties. House smoke detectors need a battery too.
Most devices & gadgets are rechargeable nowadays. The only thing I have that still requires batteries is a headlamp but even those are available in rechargeable varieties. House smoke detectors need a battery too.
For people confused about the naming of Li-ion batteries: 18650 batteries are have 18mm diameter are 65mm long and cylinder shaped. 21700 have a 21mm diameter are 70mm long and cylinder shaped.
When I learned this they went from confusing to really intuitive.