Slow charging of new battery

I'm having the same issues.

I've ordered my first battery here and the experience was sooo bad.

The first batter lost 4% of health in 1 day.

Calibrated perfectly but still it was dropping badly the very last 10% of the charge.

I've started noticing another issue: VERY SLOW CHARGE.

Like during a meeting of 1h I was used to have the battery fully charged at the end.

Instead I started the meeting with 4% and I ended with 4%.

At that stage I've asked for a replacement.

They sent me another battery which was sent the very day that after letting the Mac die to 0% it didn't turn on the next day.

Even after hours of being connected to the charger, it was not turning on. O.o

I've now replaced it with the second battery, fully calibrated and yet....

It's charging a 30W.

I noticed that below 20% meetings start to freeze...

And when the battery is less than 10% it starts to freak out.

I'm starting to regret this decision.

For double the cost, it's worth going to Apple honestly.