charger flashes red and green when I put this battery in there. been using it for half a year now for here and there oscillating jobs : r/MilwaukeeTool
New tool battery, suitable for new Milwaukee 48-11-1815 48-11850 2646-20 2642-21ct service M18 battery positive charger 12800mah - AliExpress
Milwaukee M18 18-Volt Lithium-Ion Dual Bay Rapid Battery Charger 48-59-1802 - The Home Depot
Just bought a brand new M18 impact and both batteries are flashing red and green. What're the odds they are both faulty? Am I missing something : r/MilwaukeeTool
How To Troubleshoot A Power Tool Battery That Won't Charge | Hunker