FLEX "CI 11 18.0" Cordless Compressor (18V) 1 Stück

FLEX CI 11 18.0 Cordless Compressor — mobile 18V air compressor with 11 bar and automatic pressure pre-setting

What is the FLEX CI 11 18.0 Cordless Compressor? The FLEX CI 11 18.0 is a cordless 18V air compressor with an Electronic Management System (EMS) that inflates tires, hoses, and sporting goods with a maximum pressure of up to 11 bar and an air flow rate of 13 l/min — with automatic pressure pre-setting and an LED pressure display for precise, overfill-safe operation.

A cordless compressor might at first sound like a niche product — until you're standing by your vehicle with a cordless blower for the first time and realize that the front right wheel is three tenths of a bar too low. The FLEX CI 11 18.0 Cordless Compressor solves exactly this problem, known to mobile detailers and workshop operators alike: compressed air on-site, without a power outlet, without compressor noise, without lugging heavy equipment.

With a maximum pressure of 11 bar and a flow rate of 13 l/min, the CI 11 18.0 reliably and quickly inflates car tires, motorcycle tires, bicycle tires, and sporting goods. The automatic pressure pre-setting eliminates the need for manual monitoring: set the desired target pressure, attach the compressor, wait — the device automatically switches off when the target pressure is reached. No risk of overfilling, no distraction from the detailing workflow.

The device belongs to the FLEX 18V system and can be operated with all compatible AP 18V battery packs. The included accessory kit — high-pressure hose, volume hose, and valve adapters for cars, bicycles, and sporting goods — covers all common inflation tasks. Anyone who already owns FLEX 18V batteries — for example, for the XFE 2 15 18-EC or the BW 18.0-EC blower — immediately has the necessary compressed air expertise in their portfolio with the CI 11 18.0, without having to buy another battery or charger.

• Automatic pressure pre-setting with precise automatic shut-off. The CI 11 18.0 can be pre-programmed to a target pressure and shuts off precisely when this pressure is reached. This prevents overfilling, protects the tire, and allows the compressor to be operated unattended — while you continue to prepare the vehicle elsewhere. For mobile detailers who offer tire service as an additional service, this is a real workflow gain.
• 11 bar maximum pressure for car tires, motorcycles, and sporting goods. With 11 bar, the CI 11 18.0 covers the entire pressure range of common tires: cars (2.0–3.5 bar), motorcycles (up to 4.0 bar), bicycles (up to 8.0 bar for racing tires), and sporting goods such as footballs and air mattresses. The included valve adapter set covers all valve types — Schrader, Presta, and Dunlop.
• EMS protection and LED light for safe working in all conditions. The Electronic Management System (EMS) monitors battery capacity, motor load, and operating temperature — and protects the CI 11 18.0 and the battery from overload and deep discharge. The integrated LED light makes the compressor usable even in poor lighting conditions, in garages, or at dusk — useful for evening assignments or winter work.

Practical tip from Detailing1: For mobile detailing, we recommend keeping the CI 11 18.0 as a permanent part of your vehicle case setup. Set the target pressure for the current vehicle type in advance — cars usually 2.3–2.5 bar cold — and attach the valve coupling to the front and then rear tires. While you're polishing the second side of the vehicle, the compressor is already inflating independently. Time saved: 5–8 minutes per vehicle, without distraction from the polishing workflow.

EMS and brushless drive — the technology of the FLEX CI 11 18.0

The FLEX CI 11 18.0 is equipped with the Electronic Management System (EMS) — the same protection system built into FLEX polishers and the BW 18.0-EC blower. In the compressor, the EMS continuously monitors three parameters: battery voltage (deep discharge protection), motor temperature (overheating protection), and operating load (overload protection).

Overheating protection is particularly relevant for a compressor: if the device is operated for a long period or at high external pressure — for example, when inflating high-pressure tires — the motor temperature rises. The EMS recognizes this condition and reduces power or briefly switches the device into protective mode before damage can occur. In everyday use, this means: the CI 11 18.0 runs reliably, even if it has to inflate several tires one after another.

The integrated LED pressure display is another component of operational safety. It shows the current pressure value in the tire and provides continuous feedback during the inflation process. If you are not yet working with pressure pre-setting or want to read an intermediate value, the information is always visible — without a separate pressure gauge or looking at the tire information panel in the vehicle.

The total weight of 1.9 kg without battery makes the CI 11 18.0 one of the lightest compressors in its pressure class. In combination with a 2.5 Ah battery, the total weight remains under 3 kg — handy enough for one-handed operation or carrying from tire to tire. The ergonomic handle allows stable working even over longer operating phases, without the device tipping or being uncomfortable to hold. For transport in a detailing case or tool cart, the form factor-to-performance ratio of the CI 11 18.0 is hard to beat.

11 bar and 13 l/min — pressure performance of the CI 11 18.0 in practical use

The performance data of the CI 11 18.0 — 11 bar maximum pressure and 13 l/min flow rate — sound abstract; in everyday life, they determine the range of use and inflation speed.

11 bar maximum pressure is sufficient for all normal tire types: car tires operate in the range of 1.8 to 3.5 bar, SUV tires up to approx. 3.2 bar, motorcycle tires up to 4.0 bar, and bicycle racing tires up to 8 bar. Even sporty high-pressure tires or commercial vehicles within the permissible range can be inflated with the CI 11 18.0. The only area not covered is industrial compressed air applications beyond 6–8 bar — irrelevant for detailing and private users.

13 l/min flow rate is sufficient for car tires in an acceptable time. A completely deflated car tire (approx. 35–40 liters volume) would theoretically take 3 minutes; in practice, one usually starts at 1.5–2.0 bar and inflates to 2.3–2.5 bar — which takes 30–90 seconds depending on the tire. For typical detailing applications (tire correction before or after preparation), this is completely sufficient. For bicycle tires with a small volume, it's even faster.

The included accessories sensibly expand the range of use: the 0.7m high-pressure hose is sufficient for all tire positions without repositioning the compressor; the 0.35m volume hose is suitable for shorter connections for simpler tasks. The valve adapters for cars, bicycles, and sporting goods are included — no separate adapter kit needed.

Automatic pressure pre-setting — tire inflation without overfilling

The automatic pressure pre-setting of the CI 11 18.0 is the feature that distinguishes a professional tool from a simple refill device. Instead of manually monitoring the pressure buildup and disconnecting at the right moment, you set the target pressure once — and the compressor does the rest.

The process is intuitive: set the target pressure value on the device, attach the valve coupling, start the compressor. The device builds up pressure, continuously monitors the fill level, and automatically switches off when the target value is reached. Overpressure protection is integrated: if a valve defect or operating error occurs, the safety valve intervenes. The result: exactly the right air pressure every time, without reading errors, without subsequent correction.

For mobile detailers who offer tire service as an optional additional service, this automation is particularly valuable. The time that would otherwise be spent on manual pressure monitoring can be used in parallel — masking the rim, cleaning the valve, checking the tire sidewall. The compressor works independently and signals completion.

The pressure pre-setting can be individually configured for different vehicle types. If you regularly prepare different vehicle classes — compact cars, SUVs, sports cars — you can adjust the target pressure depending on the vehicle. This creates reliability and professional quality: each tire gets exactly the pressure that is optimal for that vehicle. No rules of thumb, no estimates, no manual corrections afterward.

CI 11 18.0 vs. stationary compressors — when the cordless compressor is the right choice

Stationary compressors with 230V mains connection provide more continuous power with a larger tank volume and are the superior solution for industrial continuous operation. They have their place in a fully equipped workshop. However, the CI 11 18.0 is still the better choice for many users — for three reasons.

Firstly, mobility: The CI 11 18.0 goes wherever the job goes — home visits to customers, tire changes in the parking lot, quick checks at detailing events. A stationary compressor stays in the workshop. Secondly, simplicity: No separate connection, no pressure tank, no warm-up run. Battery in, valve on, go. Thirdly, system integration: Anyone already in the FLEX 18V ecosystem has no additional costs for batteries and chargers — the same batteries that power the polisher or blower also power the compressor.

The comparison with inexpensive 12V vehicle-powered compressors (car connection) also favors the CI 11 18.0: these devices are slow, noisy, temperature-sensitive, and require a running engine. The CI 11 18.0 works faster, quieter, and independently of the vehicle — an important aspect in professional detailing, where the customer's vehicle is not started again after preparation.

Important in the comparison: The pressure pre-setting with automatic shut-off is a feature that many inexpensive compressors do not offer. Anyone who works without this function has to manually monitor the pressure buildup and interrupt it at the right moment — a risk of overfilling and an unnecessary waste of time. The CI 11 18.0 eliminates this risk with a hardware solution instead of requiring constant attention.

Buying the FLEX CI 11 18.0 — who benefits from this cordless compressor?

The FLEX CI 11 18.0 Cordless Compressor is the right choice for mobile detailers who need compressed air on-site without a power connection, for workshop operators who want to expand their FLEX 18V fleet with a compressor component, and for vehicle care enthusiasts who want to build a complete, cordless equipment setup in their garage.

The device is supplied without a battery and charger — for those already in the FLEX 18V system, this is the logical purchase approach. If you don't yet own a FLEX 18V battery, it makes sense to combine the CI 11 18.0 with the P-Set 22 Q (two batteries + charger) or purchase an AP 18V battery pack separately.

As part of the FLEX 18V Detailing System, the CI 11 18.0 ideally complements the BW 18.0-EC Cordless Blower: The blower dries the vehicle after washing, the compressor brings the tires to the target pressure — two coordinated tools that share the same battery and together cover the entire finishing workflow of a professional detailing job.