Review Of Black And Decker Charger Light Wont Come On Ideas. You needed to charge a battery for your tools, but when you tried the black and decker charger led started blinking. The issue with the black and decker battery charger is the cordless power tools which can be loose or so.

I say so because your battery could be charging, but not the indicator. Web when your black and decker battery charger is blinking red, you may wonder why this is happening. Chargers will test the output voltage of your battery and then decide if it needs charging.