battery shutsdown at 47% percentage

[IDDI]

I own an HPELITEBOOK x360 1030 G2 " . Recently I noticed that with battery power (DC) on the elitebook  shuts off without any warning at 47% battery level. And whenever I turn on the power it doesn't come on except I plug in the AC adapter. When it comes on, the system still show the battery at 47% and if i remove it at 47% it dies. 

[Huffer]

So how old is the battery and have you run a full diagnostic test on it? Likely just needs battery replacement. 

[IDDI]

cycle count 486/1000

battery age 761 days 

design capacity 4935

full charge capacity 3275 mAh

cell voltage 1: 0mV

cell voltage 2: 4371mV

cell voltage3:4342 mv

cell voltage4 : 4342

[IDDI]

this what its showing me the battery last normally but unexpected it start this shutdown 

[Huffer]

No that shows an old and weak battery. Tine for a new one. 

[t0ny001]

Could you tell me what is this showing and how can you tell? Thanks

[Huffer]

Please start your own thread but this also shows an old and weak battery....only has 72% of its original capacity.