Which Battery Grease Gun Brand Wins?
In our test we compared 5 battery grease gun options head to head. Milwaukee M18 cordless two-speed grease gun came out on top. See the measured results, the runner-up, the budget pick, and a link to the full test video.
Milwaukee M18 cordless two-speed grease gun
Price shown in test: $164 (tool only, not battery and charger)
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The quick take
The short version of why each pick lands where it does, built straight from the measured results.
“the milwaukee was a clear winner ... i really thought it was gonna be a lot closer competition between milwaukee and the other brands but milwaukee totally dominated the competition pumping grease faster and delivering a lot higher psi”
The measured results
Every number below is read straight from the test. Products are listed in the order they finished.
Specs
- 1Milwaukee M18 cordless two-speed grease gun
two speeds: 10,000 psi / 3.5 oz per minute claimed in first speed, 5,000 psi / 10 oz per minute claimed in second speed; 48 in hose (longest of the five); preset grease counter; 5 year warranty (longest); made in China; tested with a 5-Ah battery
- 2DeWalt20-V
lithium ion, max pressure 10,000 psi (690 bar) claimed, max volume 5 oz/min claimed, 42 in hose, 3 year limited warranty plus 1 year full service and 90 day money back, made in USA with global materials, trigger lock, tool stand and nozzle holder, rubber bushing to prevent cross threading, tested with a 4-Ah battery
- 3Ryobi Ryobi One+
max pressure 10,000 psi claimed, max flow 7.5 oz/min claimed, onboard LED light, 30 in hose (shortest of the corded-length specs given), air bleeder valve, lock-on/lock-off trigger, 3 year limited warranty, made in China, built-in tool stand and hose holder, tested with a 1.5-Ah battery
- 4Performance Tool18-V
battery, ergonomic design claimed, 42 in professional grade flex hose, 1 hour quick charger, two 18-V rechargeable batteries, heavy duty plastic storage case, motor rated over 7,500 psi, 1,500 mAh NiCad batteries, claimed output approximately 75 g/min, 1 year limited warranty, made in China, no legs/tool stand (has to be laid down, will pick up dirt), comes with shoulder strap
- 5Ingersoll Rand20-V
2.5-Ah battery, 30 in hose, rated for 7,500 psi, no light, no trigger lock, tool and battery made in Taiwan, charger made in China, 3 year warranty, no leg stand (lays on ground, collects dirt), no nozzle holder
Weight
- 1Milwaukee M18 cordless two-speed grease gun9.4 lb
(4.3 kg)
- 2DeWalt8.8 lb
(4 kg)
- 3Ryobi Ryobi One+7.8 lb
(3.5 kg)
- 4Performance Tool7.2 lb
(3.3 kg)
- 5Ingersoll Rand7.4 lb
(3.4 kg)
Noise
- 1Milwaukee M18 cordless two-speed grease gun81 dB
(loudest of the five)
- 2DeWalt75 dB
(quietest of the brands tested up to that point in the video)
- 3Ryobi Ryobi One+80 dB
- 4Performance Tool79 dB
- 5Ingersoll Rand72 dB
(stated as the quietest tool overall)
Battery charge time
- 1Milwaukee M18 cordless two-speed grease gun54 minutes
(5-Ah battery, fastest of the five despite the largest capacity)
- 2DeWalt63 minutes
(4-Ah battery)
- 3Ryobi Ryobi One+about54 minutes
5 seconds behind Milwaukee's finish (1.5-Ah battery)
- 4Performance Tool68 minutes 50 seconds
- 5Ingersoll Rand73 minutes 15 seconds
the slowest of the five despite only a 2.5-Ah battery
Pump speed (30 sec, no load)
- 2DeWalt154 pumps
(per closing recap), 63 grams, working out to 4.4 oz/min actual vs its 5 oz/min claim
- 3Ryobi Ryobi One+162 pumps
114 grams (4 oz), beating its 7.5 oz/min claim at 8 oz/min actual
- 4Performance Tool64 pumps
39 grams, beating its claimed 75 g/min at 78 g/min actual
- 5Ingersoll Rand66 pumps
35 grams, about 2.5 oz/min actual
- 1Milwaukee M18 cordless two-speed grease gunnot tested
Output at 150 psi resistance
- 2DeWalt58 grams
in 30 sec (5 grams less than the no-load test)
- 3Ryobi Ryobi One+105 grams
in 30 sec, described as holding up very well versus the no-load result
- 4Performance Tool34 grams
in 30 sec
- 5Ingersoll Rand34 grams
in 30 sec, nearly matching its no-load result and tying Performance Tool's 150 psi figure
- 1Milwaukee M18 cordless two-speed grease gunnot tested
Max pressure
- 2DeWalt
pressure release valve opened at 9,000 psi, 1,000 psi short of its advertised 10,000 psi rating
- 3Ryobi Ryobi One+8,150 psi
1,850 psi below its 10,000 psi rating
- 4Performance Tool6,925 psi
(575 psi below its 7,500 psi rating)
- 5Ingersoll Rand6,100 psi
the lowest of all five brands tested, well under its own 7,500 psi rating
- 1Milwaukee M18 cordless two-speed grease gunnot tested
All measurements (6 more)+
Pump speed, first gear (30 sec, no load)
- 1Milwaukee M18 cordless two-speed grease gun79 pumps
54 grams (1.9 oz), beating its 3.5 oz/min claim at 3.8 oz/min actual
- 2DeWaltnot tested
- 3Ryobi Ryobi One+not tested
- 4Performance Toolnot tested
- 5Ingersoll Randnot tested
Pump speed, second gear (30 sec, no load)
- 1Milwaukee M18 cordless two-speed grease gun244 pumps
162 grams (5.7 oz), beating its 10 oz/min claim at 11.4 oz/min actual
- 2DeWaltnot tested
- 3Ryobi Ryobi One+not tested
- 4Performance Toolnot tested
- 5Ingersoll Randnot tested
Output at 150 psi resistance, first gear
- 1Milwaukee M18 cordless two-speed grease gun50 grams
in 30 sec
- 2DeWaltnot tested
- 3Ryobi Ryobi One+not tested
- 4Performance Toolnot tested
- 5Ingersoll Randnot tested
Output at 150 psi resistance, second gear
- 1Milwaukee M18 cordless two-speed grease gun156 grams
in 30 sec
- 2DeWaltnot tested
- 3Ryobi Ryobi One+not tested
- 4Performance Toolnot tested
- 5Ingersoll Randnot tested
Max pressure, second gear
- 1Milwaukee M18 cordless two-speed grease gunabout6,100 psi
(exceeded its 5,000 psi second-gear rating)
- 2DeWaltnot tested
- 3Ryobi Ryobi One+not tested
- 4Performance Toolnot tested
- 5Ingersoll Randnot tested
Max pressure, first gear
- 1Milwaukee M18 cordless two-speed grease gunover10,000 psi
recap figure 10,100 psi (exceeded its 10,000 psi rating)
- 2DeWaltnot tested
- 3Ryobi Ryobi One+not tested
- 4Performance Toolnot tested
- 5Ingersoll Randnot tested
How it was tested
- grease pump output without load (grams and pump count in 30 seconds)
- grease pump output under 150 psi resistance (30 seconds)
- maximum pressure via hydraulic hose and gauge rig (psi)
- noise level (dB, measured 24 inches from tool)
- weight
- balance/ergonomics
- battery charge time
- ease of priming
“the milwaukee was a clear winner ... i really thought it was gonna be a lot closer competition between milwaukee and the other brands but milwaukee totally dominated the competition pumping grease faster and delivering a lot higher psi”
Brand head-to-head scoreboards featuring this test
Data notes and caveats
Clean, well-resolved five-brand head-to-head (Milwaukee, DeWalt, Ryobi One+, Performance Tool, Ingersoll Rand); all prices introduce the brand in the same clause (no off-by-one risk) and all numbers are internally consistent with the closing recaps. Milwaukee is the explicit overall winner. Second place is an explicit declared toss-up/tie between DeWalt and Ryobi per the narrator ('it was pretty much a toss-up between dewalt and ryobi for the second place finish... dewalt delivers more psi but ryobi pumps grease a little bit faster'), so runnerUp is left null rather than forcing a single pick; the tie and each brand's edge are preserved in their product notes. Ingersoll Rand's $273 price is not apples-to-apples with the other four: it is the only brand priced as tool+battery+charger together, while the other four prices are tool-only. A separate manual pistol-grip grease gun was used as an un-tested baseline/control early in the video (48 pumps in 30 sec) and is not one of the five branded products, so it is excluded from products[].
