I have a 2000s sony discman and alkaline batteries last 40 minutes without problems than voltage drops too much, and lithiums make the laser jittery, is it possible to safely combine the two into the discman?

Had just dropped it from my desk, is it still safe to long-term use? Fyi, it never experienced any bloating, significant damage before this, it popped open immediately after impact; a slim black piece of it flew out (seems to be its retainer for the case). Right now i don't smell any particular odor from it or feel any warmth to the touch. Any heads up/advice would be appreciated!

I need to replace the battery for my transcend tsonic 650 mp3 player.
I have the original battery but i cant find what type of battery this is.
Please help me find a replacement/model of this battery.
This is what it looks like(usb for scale)

As the title says, the seal on the positive tip is broken. Still safe to use? Or is the whole wraparound label just cosmetics?

I've watched a lot of clips showing how this automatic battery charger is so good and intuitive and so I bought one. After few months one of my cars start to have some battery issues so I figured it out - it's time to see this magic. I've tested the battery - SOH 69%, tester clearly indicated - time to change, but I charger IT with Noco to full, and initiated repair mode - which starts with blinking icon and done nothing, I've checked it with a thermal camera and only the charger get hot, nothing else (wires, clamps, battery?).

It runned like this for a while and stopped with a GREEN light. Battery status doesn't changed, it is still with low SOH, and the whole process seems to be a blinking Red light turning GREEN in few hours.

Have you every experienced anything similar?

Now I wish I had chosen one of the manualy operated competition where the user decides what should happen now 😔

SiA'C-F-6020-20S-20200723W-0013

LiFePO4 ? (Edit* or Lithium-Ion? )

I need a new charger and want to make sure I get the right one.

Thanks

Added* also how to read this serial number code? If possible.

My guess is 60v 20ah 20cell series.

Full voltage charge is reading 67v

My Redmi Buds 5 earbuds, which I've been using for a long time, now completely drain the battery in the left earbud in 1-2 minutes, and I wanted to replace the battery, but I couldn't find online which battery it uses. Does anyone know?

It looks like it was dropped, that's not a burn mark.