This site contains affiliate links for which we may be compensated.
Ryobi 18V Cordless Grease Gun$228.97
It has a maximum pressure of 10,000 PSI, and a max flowrate up to 7.5 oz./minute. The on-board LED work-light helps illuminate the workspace, while the 30 in. flexible hose helps to reach it.
The plunger rod has markings that allow 1 to see exactly how much grease is left in the tube and the air bleeder valve primes the pump and reduces air pockets.