The 70mai Air Compressor Lite (model TP03) is a compact digital pump with a flow rate of 25 L/min and a maximum pressure of 11 atm, powered from a 12 V cigarette lighter socket.

FAQ on the Operation of the 70mai Air Compressor Lite TP03

Which 70mai compressor models are available and what are their key specifications?

The lineup includes models TP01, TP03, TP04, and TP05. TP01 has a flow rate of 39 L/min and is supplied in a metal case. TP03 and TP04 are compact models with a flow rate of 25–26 L/min. TP05 is a cordless model with an integrated battery.

What power sources do 70mai compressors use?

Models TP01, TP03, and TP04 operate exclusively from a 12 V car cigarette lighter socket. Model TP05 is equipped with a built-in battery and can operate autonomously.

What are the dimensions of the 70mai TP01 compressor?

The overall dimensions of the 70mai Air Compressor Midrive TP01 are 235 x 110 x 172.9 mm.

What are the dimensions of the 70mai TP03 compressor?

The overall dimensions of the 70mai Air Compressor Lite Midrive TP03 are 164 x 148 x 54 mm.

What are the lengths of the power cable and air hose for different models?

For TP01 the power cable length is 2.8–3.0 m, and the hose length is about 0.6 m. For TP03 the power cable length is 3.7 m, and the hose length is 0.7–0.8 m.

What maximum pressure can 70mai compressors produce?

TP01 and TP03 produce up to 10–11 bar. TP05 produces up to 10 bar.

Can 70mai compressors be used to inflate tires of different diameters?

Yes, the compressors are suitable for tires from R14 to R21. For tires R17–R19, it is recommended to use higher-performance models (TP01). Inflation time depends on tire volume.

Is there automatic shutoff when the target pressure is reached?

Yes, all 70mai compressor models support automatic shutoff when the preset pressure is reached.

What pressure units are supported?

The compressors support three units: BAR (bar), PSI (pounds per square inch), and KPA (kilopascal). Switching between them is performed with the "R" button.

What is the pressure measurement accuracy?

The pressure measurement accuracy is ±0.05 bar (five hundredths).

What is the operating temperature range for 70mai compressors?

The operating temperature range for TP01 and TP03 is from -20°C to +70°C. Storage range: from -30°C to +80°C.

Can the compressor be stored in a car trunk during winter?

Yes, 70mai compressors can be stored in a car trunk at sub-zero temperatures, as the storage range allows this.

What nozzles are included in the package?

The package includes three standard nozzles: for automotive tires, for balls (needle), and for inflatable products. The nozzles are located in a dedicated compartment on the device body.

Can the compressor be used for inflating air mattresses, boats, and other products?

Yes, with the appropriate adapters the compressor can be used to inflate mattresses, PVC boats, balls, and other inflatable products. For high-volume items, it is recommended to take breaks during operation.

Is there a pressure release function?

No, 70mai compressors do not have a pressure release function. The devices are intended only for air intake.

How can I connect the compressor directly to the battery?

Direct connection to the battery is not supported as standard. To do this, you will need to purchase a separate adapter with crocodile clips to a cigarette lighter socket.

Can the compressor be powered from a 220 V outlet?

Yes, provided you use a 220 V/12 V adapter with an output power of at least 120 W and a cigarette lighter socket.

What is the power consumption of the compressors?

TP03 power consumption is 120 W, with a maximum current draw of 10 A.

What is the flow rate of different models in liters per minute?

TP01 — 39 L/min, TP03 — 25–26 L/min, TP05 — 18.5 L/min.

Is there a fuse in the plug and what rating is it?

Yes, there is a 10 A fuse in the power plug.

What type of connection to the valve stem is used?

A threaded connection is used. The hose must be screwed onto the tire valve stem.

What is the hose thread diameter?

The thread diameter conforms to the international standard. The external diameter of V8 thread is 7.747 mm with a pitch of 0.794 mm.

Can the hose or chuck be replaced?

The hose and chuck can be replaced, but this requires disassembling the device. The plastic chuck can be replaced with a metal quick-release fitting.

What should I do if the compressor displays error 1888?

The appearance of error 1888 indicates a malfunction. In this case, contact the seller’s support service or an authorized service center.

What actions should be taken in a warranty case?

The warranty for 70mai compressors is 1 year from the date of purchase. In the event of a malfunction, contact the service center, whose contact details are indicated on the packaging and on the manufacturer’s website.

Can the compressor be used with the engine running?

The manufacturer recommends using the compressor with the engine switched off. However, in practice many users successfully operate it with the engine running.

What is the permissible duration of continuous operation of the compressor?

The manufacturer states the possibility of continuous operation for up to 24 hours, but in practice 5–15 minutes of continuous operation is sufficient for tire inflation.

Is there overheating protection?

Yes, the compressors are equipped with overheating protection that shuts down the device when the permissible temperature is exceeded.

How is cooling implemented in the TP01 compressor with a metal housing?

Cooling is achieved through the metal housing, which efficiently dissipates heat, and through ventilation openings. During intensive use, it is recommended to allow the device to cool periodically.

Does TP05 support automatic shutoff by pressure?

Yes, the 70mai TP05 cordless compressor has an automatic shutoff at the specified pressure.

What adapters are included with TP05?

The TP05 kit includes three adapters: an air hose, a Presta valve connector, and a long air nozzle.

Can the compressor be used for air blowing?

The compressors can be used for light blowing, but they are not intended for intensive tasks due to modest performance and limited airflow.

What is the minimum pressure measurement threshold?

The compressors can measure pressure starting from 1.5–2 PSI (0.1–0.14 bar).

What are the weights of different compressor models?

TP01 — about 950 g, TP03 — 800 g, TP05 — 590 g.

What power supply options does the 70mai TP03 compressor support and how is it charged?

The device operates from a 12 V vehicle electrical system via the cigarette lighter socket. Some modifications are equipped with an integrated battery and can inflate without connection to the cigarette lighter. Charging of battery-powered versions is performed via a USB Type-C cable from a 5 V mains adapter or a power bank. Operation from a 220 V outlet is possible via an external 220 V>12 V adapter (purchased separately).

What temperature ranges apply for storage and use in winter?

Declared storage down to -30 °C and operation down to -20 °C. At low temperatures, performance decreases; before inflation it is recommended to warm the device in the passenger compartment. This applies to the 70mai TP03 model as well as to Xiaomi Air Pump 2 battery-powered inflators.

What units are supported and how accurate is the gauge?

The compressor displays pressure in BAR and PSI; in some versions KPA is also available. The gauge is factory-calibrated; user calibration is not provided. The permissible error is not specified in the source; therefore, if necessary, compare readings with a reference gauge.

Can a target pressure be set and is there auto shutoff?

Yes, the target value is set on the control panel. When the preset pressure is reached, the compressor automatically stops. The device does not vent air in the reverse direction; excess pressure is released manually through the valve stem.

What are the minimum and maximum pressure limits?

The source data indicate: minimum 0.03 PSI (?0.002 BAR), maximum up to 10–11 atm (up to 150 PSI) in free mode. In automotive mode, the limit may be restricted to 3.5 BAR.

How long does it take to inflate a car tire and what is the flow rate?

The time depends on tire size and initial pressure. For example: a 235/55 R19 tire from zero — approximately 12–14 minutes; topping up by 0.2–0.5 BAR — about 1–3 minutes. Claimed flow rates are 15–19 L/min (for Xiaomi Pump 2) and current draw up to 10 A when operating from 12 V (~120 W). Continuous operation per cycle — up to 30 minutes, after which the device requires a cooling pause. The Xiaomi Air Pump 2 auxiliary fan also supports these units.

Which wheels and products is the 70mai TP03 compressor compatible with?

Suitable for passenger car tires (including R18–R20 at pressures up to 2.5–3.0 BAR), bicycles and e-scooters, and balls; for road bicycles with a Presta valve, an adapter is required. Air mattresses and boats can be inflated with the appropriate adapters; SUP boards and high-pressure suspension forks are not serviced by this compressor.

What nozzles and adapters are used and where are they located?

A standard automotive valve thread is used; the basic package usually includes a ball needle and a conical nozzle. The nozzles are placed in the housing at the bottom, under the display; pull them towards you—they look like decorative pins. For quick-connection, a separate quick-release chuck can be used (sold separately).

How do I start the compressor correctly and are there any operating features?

When powered from 12 V, connect the plug to the cigarette lighter socket, screw the hose onto the valve stem, select the mode (auto/bicycle/free) and set the pressure; press "Start". For battery-powered models, remove the hose from its seat before switching on—this activates power. During operation, pressure readings may “flicker” on video—this is a filming effect, not a malfunction.

What are the lengths of the power cable and hose?

The mains cord for the cigarette lighter is about 3 m; the hose length is about 65 cm. Both elements are stowed inside the housing or in a pouch for convenient storage.

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