Re: Discharging a wireless USB keyboard for long-term storage

"R.Wieser" <[email protected]> Sat, 27 Jun 2026 07:46:09 +0200
Newsgroups alt.comp.hardware.pc-homebuilt,sci.electronics.basics,sci.electronics.repair,comp.sys.raspberry-pi
Organization A noiseless patient Spider
Message-ID <[email protected]>
Mr. Man-wai Chang,

> What's the fastest way to discharge the internal rechargeable battery
> in a wireless USB keyboard?

Why would you want/need to do that ?  What do you think (c|w)ould go wrong 
if you didn't ?

But the fastest way would be to open the keyboard, take some electrical wire 
and connect the positive and negative battery terminals.  Depending on the 
kind of battery it might cause sparking and a glowing, *very* hot battery 
though.  It might even explode. But hey, its fast. :-)

> It also has a switch to select wired (mis-lablled as "OFF"?) and wirelss 
> mode (mis-labelled as "ON"?).

You mean when its "on" the wireless mode is active - regardles of if the (PC 
/ USB) connector is plugged in and its recharging the battery - and when its 
"off" the wireless doesn't work - even though it could still charge the 
battery - and its just a standard PC / USB keyboard ?

What do you think that the switches labeling should have said instead ?

Regards,
Rudy Wieser