How to verify if battery is good

I'm trying to repair my Asus Memo pad HD7 (ME173X-1A013A) because when I turn on it, it shows battery red icon for 2 seconds and it turns off

Charger is good

I thought:

- battery to life end

- dirty charging micro usb port

- problem to charge circuit

I tried to clean usb port but nothing.

I opened tablet and I disconnected battery cable for 10 minutes and I connect it again but nothing.

I tried to hold down both power and volume keys for 10 seconds but nothing.

How can I check if battery is good for example?


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When you unplugged the battery and plugged it back in, did you first check with a multimeter that all charge in the system had been drained?