Best cordless grease gun

Milwaukee M18 cordless battery powered grease gunhttps://rover.ebay.com/rover/1/711-53200-19255-0/1?icep_id=114&ipn=icep&toolid=20004&campid=5338110396&mpre=http%3A%2F%2Fwww.ebay.com%2Fitm%2FNEW-MILWAUKEE-2646-21CT-M18-18-VOLT-CORDLESS-GREASE-GUN-KIT-WITH-CASE-SALE-%2F131021519149%3Fepid%3D899611975%26hash%3Ditem1e817db92d%3Ag%3AMzcAAOSwyQtVpPRC Video taken with Iphone 7 plus purchase here https://www.amazon.com/gp/product/B01LXU4VO7/ref=as_li_tl?ie=UTF8&tag=onsumernfluen-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B01LXU4VO7&linkId=cf37a03e006d1e258a27389943050df0