For car, SUV and light-truck owners who want a sturdier, battery-powered alternative to a socket inflator for the trunk. Off-roaders airing up 33 in tires should step up to a 300P or 400P.
Amazon $89.89
For overlanders who value ARB’s durability, case and three-year warranty over raw speed. Buyers chasing airflow per dollar will do better with a VIAIR 400P EF.
- Battery clampsPower
- 100 PSIMax pressure
- 75.1 L/minAirflow
- NoAuto shutoff
- 3 yearsWarranty
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
- Built to last: sealed motor, hard-anodized cylinder and a three-year warranty
- Lives in a tough weatherproof case with room for the hose and fittings
- Pressure switch stops it when you close the chuck, and it can feed air tools
- Costs about twice as much as a VIAIR 400P EF with similar airflow
- Must rest half of every hour (50% duty cycle)
- Heavy at over 15 lb in its case, and no auto shutoff at a set pressure
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | CKMP12V2 |
|---|---|
| Inflating | |
| Max pressure | 100 PSI |
| Airflow (maker) | 75.1 L/min |
| Auto shutoff | No |
| Duty cycle | 30 min on |
| Power | |
| Power | Battery clamps |
| Power bank | No |
| Build | |
| Air hose | 276 in |
| Light | No |
| Dimensions | 14.0 x 12.1 x 7.2 in (case) |
| Weight | 15.4 lb |
| Warranty | 3 years |
Alternatives in this type
For off-roaders on 33 to 35 in tires who air down regularly and want quicker, longer runs than a 300P without paying for a twin. It is the sweet spot of VIAIR’s portable line.
Amazon $252.04For RV, trailer and big-truck owners who run high pressures or fill many tires in a row and want a compressor that never needs a rest. For fastest fills at trail pressures, the 400P EF is quicker.
Amazon $307.60Compare
Compare the ARB CKMP12 Portable (V2) with any other tire inflator →
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