Here’s the reason why: Li-Ion batteries spend most of a charge cycle in an almost flat region. Simple battery gauges just read the voltage, so “Battery Low” happens shortly before it dies.
Is this also why people say that keeping your charge levels between 20 and 80% extends your battery life?
The limits of the curve are a high stress situation for the chemistry inside, I’m not exactly sure about the mechanism, so take it with a few grains of salt.
Essentially there’s some growths (I think they’re called dendrites) forming slowly, all the time the battery is flowing charge. But it happens more quickly under adverse conditions, like the extreme ends of the voltage/charge spectrum…
Neat, I didn’t know there was an actual reason for it!
My favorite is the
BATTERY LOW
that interrupts my music every 30 seconds right in the last fleeting moments of power which is the EXACT TIME I want my music to be regularly interrupted.
I had headphones like that. Who thought that was a good idea? What’s the point of making the last 30min of them unusable? Just shutting them off would be less annoying. Even not telling you at all would be better.
Very annoying. I’m forever grateful my current headphones (sony wh1000xm4) announce it once and then shut up.
I have those too! I’m upset they changed the design and made them non-collapsible on the xm5s :(
From hell’s heart, I stab at thee!
-Dying headphones
I swear I have the exact opposite, battery high for 3 days then battery low the next 2 before dying. Both earbuds and headphones from the same company.
KDE letting me know that my mouse’s battery is low for the past six months
(Okay I was too lazy to edit the image but all three sections of the battery are colored in red)Are you using a rechargeable battery?
AA batteries are typically 1.5V, but some rechargeable ones are only 1.2V. This leads to the product thinking the battery is always low even when it’s fully charged.
If you have a Li-ion rechargeable, you get the opposite problem. The battery is actually around 2.7V, and has a converter internally to step it down to 1.5V. You will keep getting 1.5V until the battery goes flat with no warning.
Ooh, that’s a good call, I’ll check. I think it’s just a standard 1.5v though.
My headset says over 80/60/40/20.
Notably that doesn’t start on full. Full charge just states ‘over 80%’
I have 3M hearing protection ear muffs with built-in Bluetooth so I can listen to music at work. I have only ever seen the battery at 100%, or low
On the Turtle Beach headphones I have for gaming/working out, when she says “battery level medium” I always feel like she’s got a judgy tone in her voice.
Jabra?
Nope, Soundcore. My sympathies that more than one company does this!
