Nothing wrong with the product as such but far too much tiny heatshrink that I will never use. No great expense so that's OK but if I'd needed more this would be disappointing.
Vie Patch Vitamin B12 Plus 10 High Strength Patches 5000Mcg 100% Natural 42 days
18 Oct, 2017
It's hard to rate something like this...
... Because ultimately you don't know if it's working. What I DO know is the patches come off far too easily so it's nearly impossible to keep them in place for the duration required.
Go with the oral spray, it's much better value anyway. Almost a year's supply in one small bottle.
The real test of a battery is life span so it's hard to know, but so far this seems to be working as well, if not better, than the original did when the laptop was new.