I've booted my samsung 300V5A notebook with kali linux which was originally booted with windows 7. Initially it was running quite well. Gradually the maximum charge limit of my laptop decreased to 80% . To 60% after few days. Ultimately it couldn't charge more than 34%. I installed TLP,but it didn't helped me. I end up reinstalling windows. My battery again gave me its maximum juice. It charged up to 100% and gave a backup of 3.5 hours on normal use.Is there an issue with the kernel or something else.I've tried ubuntu and fedora too but same thing happened in both cases. Please help me to solve this issue. 
Battery issue on samsung pc
linux