Milwaukee Tool is expanding their TOP-OFF lineup with the launch of the new M18 TOP-OFF Charger & Power Supply. This is the ...

That list does indeed include a battery-powered grease gun. That tool is part of Milwaukee's M18 power system, meaning you can share its 18V Lithium-Ion battery pack with any other tool in the lineup.

If you have Milwaukee power tools, you're probably no stranger to its chargers, but what does it mean if it starts making noises while in use?