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The CRAFTSMAN V20 inflator identified by model CMCE520B can run on a V20 battery, an AC wall plug, or a vehicle 12V adapter. It is sold as a bare tool: the battery and charger are separate purchases. CRAFTSMAN describes it for uses ranging from automobile tires to air mattresses, but CMCE520B is not the same product as the CMCE521B high-pressure inflator.
What the CRAFTSMAN V20 CMCE520B is for
CRAFTSMAN describes the CMCE520B as an inflator for jobs ranging from an air mattress to an automobile tire. Its product page lists a digital PSI gauge and an automatic shutoff: enter a target PSI, and the unit is designed to stop when it reaches that setting. These are manufacturer-described features, not independently verified performance results. CRAFTSMAN CMCE520B product page
Power options and what is included
The CMCE520B can be powered by a CRAFTSMAN V20 battery, an AC wall plug, or a vehicle 12V adapter. The battery and charger are not included; CRAFTSMAN labels this listing “Tool Only.” Check the box contents and model number before buying, particularly if you need a battery-powered setup immediately. CRAFTSMAN CMCE520B product page
The manufacturer lists these included accessories:
- Ball needle
- Presta valve adapter
- Small inflatable adapter
- Large-volume hose
The inflator also has on-board accessory storage, according to CRAFTSMAN. Match the included fitting to the valve or inflatable you plan to use; the page does not establish that every possible nozzle or valve type is supported. CRAFTSMAN CMCE520B product page
#1 Best Overall
- Accurate pressure reading with easy-to-read digital display with highly accurate pressure read out (-2 PSI delta on all applications tested*)
- Battery powered for increased portability
- High pressure pump provides up to 150 PSI max pressure allows for wide variety of inflation applications
- Optimized D-Handle design with rubber over mold for a natural & comfortable grip that is evenly balanced
- Works with Craftsman V20 System
CMCE520B versus CMCE521B
These are distinct V20 inflators, not alternate names for the same unit. CRAFTSMAN’s product category lists both models separately. The CMCE521B is identified as a high-pressure inflator, and its official page specifies a maximum pressure of 150 PSI. That figure belongs to the CMCE521B; the CMCE520B product page does not provide a reliable maximum-pressure figure, so do not use 150 PSI as a CMCE520B specification. CRAFTSMAN CMCE521B product page CRAFTSMAN inflator category
The CMCE521B page lists a high-pressure tapered nozzle adapter, an inflator needle adapter, and a Presta valve adapter. Those listed accessories are for the CMCE521B and should not be assumed to come with CMCE520B. CRAFTSMAN CMCE521B product page
Rank #2
- HIGH VOLUME OUTPUT: High pressure allows you to quickly inflate anything, designed for needs ranging from a tire pump to an air mattress pump
- ULTIMATE CONVENIENCE: Portable tire inflator comes with 3-power sources including V20 20V MAX battery, AC wall plug, or 12V car adapter plug
- AUTOMATIC SHUTOFF: Allows you to set your PSI and the unit will shutoff once it is reached
- EASY READ DISPLAY Digital PSI gauge
- Battery & charger sold separately
Warranty
CRAFTSMAN lists a three-year limited warranty for the CMCE520B. Check the product page and the warranty terms for applicable conditions. CRAFTSMAN CMCE520B product page
Quick Recap
Best Value
- 【Powerful Inflation】Delivers up to 150 PSI, inflating a 195/65 R15 tire from 30–36 PSI in under 1 minute—fast, reliable performance for roadside emergencies.
- 【Auto Shut-Off】Set your target pressure in PSI, BAR, or kg/cm² and the inflator shuts off automatically to help prevent over-inflation and save time.
- 【Digital Display & LED】The clear LCD screen shows both current and target pressure. Built-in LED light with 3 modes improves visibility for night use and emergencies.
- 【Compact & Multi-Use】Weighs only 1.9 lbs and features a 10 ft 12V car accessory plug and 2.17 ft air hose—ideal for cars, motorcycles, bikes, and sports equipment.
- 【Portable Storage】Built-in cord storage, included carry bag, and multiple adapters keep everything organized and ready for travel or home use.
Rank #4
- Part of the V20 cordless system
- High pressure and low volume output allows you to quickly inflate anything from a tire to an air mattress
- 3-Power sources provide ultimate convenience - V20 20V max* battery; AC wall plug; or 12V car adapter plug
- Automatic shutoff allows you to set your PSI and the unit will shutoff once it is reached
- Digital PSI gauge provides an easy to read display
Rank #3
- Powerful Inflation Performance - With a built-in true 6000mAh rechargeable battery, this tire inflator can support up to 4 car tires (195/55 R15) and charge them from 30PSI to 36PSI in 45 seconds
- 5 Inflation Mode - This portable air pump has 4 preset inflation modes: bike pump, motorcycle pump, car pump and ball pump, and supports custom modes (set pressure values according to the inflation object) to meet various inflation needs. 4 pressure units :PSI, KPA, BAR, KG/CM²
- Portable Electric Air Pump - Weighing 1.28 lbs, cordless design, compact size, easy to store in the car and carry, road trip essentials. Additional car accessories include: Extra nozzle×3, Extra Fuse x1, USB Type C Charging Cord×1, 10ft 12V car accessory plugx1
- Versatile 12V Air Compressor - Not just the tire pump. Built-in LED lights, can be switched to three modes, for emergency power and use in low-light conditions. Includes a type-C charging port and a 5V/1A USB output port, USB-C charger can be used to charge phones and other electronics
- Smart & Safe Air Pump for Inflatables - LED screen always show you accurate real-time tire pressure values and preset values for easy monitoring of tire pressure status. Automatic shut-off feature turns the Inflator off once your preset pressure level has been reached, preventing over-inflation
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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