Battery2(B2)- I got it from here. I t was a HP one and not from LapGadgets. This was a replacement as well, since the first battery got from this site had swollen, used to die with 80% capacity. As it was within the warranty, so got it replaced.
Battery1(B1)- This I got it from a friend as a temporary replacement since the website linked above was initially hesitant to give me a replacement battery, but finally gave in.
During the ongoing dispute with B2’s owner, I got B1 from my friend and used it. It worked great before the Windows update last month. It worked fine when on AC power. It also worked fine till it reached 50% on battery. After which it started stuttering everywhere. The battery % would drop to around 40% after which it would go to sleep indicating it lost all it’s juice. When I turned it back on, the battery started charging from 1% meaning the system thought that it was completely dead. I tried calibrating it 3-4 times but no use.
I already received an under warranty replacement battery, B2. Thinking that B1 had died out, I got B2 installed. This did not charge to 100% initially, so went along juggling with OS’s. Finally have it stuck at 99%, which I’ll take it, compared to 82% when I had this installed initially.
This one starts stuttering once on battery power, from 99% itself.
My friend has told me that he’ll get the replacement for B1 as well. I’ll try to install that and see if it works fine on AC power.
It would be a little unrealistic if both batteries were faulty. But I am not ruling that given that it’s compatible so a good chance to be taken for a ride.
Hope I am clear 
