From what I can tell this sounds like you are using a power supply which is ABOVE the rated voltage of your blade I suggest double checking the voltage input of your blade and the output of your power supply, overcharge protection protects you from well, overcharging, it does not mean there is overvoltage protection.
If this happens to be the case I recommend purchasing a new charger from RAZER’ s webstore here: https://www.razer.com/gaming-pc-accessories/Razer-65W-Power-Adapter-for-Razer-Blade-Stealth/RC30-02390100-B3U1 it is currently out of stock but when its back in I suggest getting one if the power supply was the problem.
If the original battery worked then maybe the battery specs of the ones you ordered were for a different model and did not function properly, that or you just have insanely bad luck with batteries, batteries dying during shipping isn’t all that uncommon due to heat