A battery-free PWD01 is not an unpowered machine. On the PowerDe product page, the "without battery" variant keeps the 4.5 kW PTC semiconductor heater, the hot-water, dry-steam and wet-steam modes, and the 48 V working voltage — the battery itself is simply supplied by the buyer instead of shipping with the unit. That single fact sets the whole pre-start routine apart from the battery-included version: your checks now have to cover the customer battery, the cable that carries 48 V to the machine, and every safety circuit that depends on that supply being present and correct.
The list below follows the order a technician should work in, from the power chain outward to the water and steam paths. It applies to PowerDe PWD01 (battery not included), the driving-style mobile active-water cleaning machine used mainly in indoor garages and narrow outdoor parking areas.
1. Confirm the battery you are fitting to the 48 V system
The PWD01 without battery is listed with a 48 V working voltage and the remark that batteries are customer provided. Before any cable is connected, write down three numbers from your battery data sheet — nominal voltage, capacity, and continuous discharge rating — and compare them with what PowerDe specifies for your order. A battery rated below the discharge the heater and pump demand will sag under load, trip protection, and heat at the terminals. Confirm the terminals, cable gauge and connector match the machine inlet, and inspect the battery case, vents and terminals for damage, corrosion or swelling before it is loaded.
Do not test by connecting a battery of unknown specification "just to see". If the supplier's data sheet and the machine documentation disagree, stop and get a written answer from PowerDe before the first cleaning shift.
2. Check the battery cable, connector and isolation before switching on
With the battery removed for transport or storage, the cable and connector become the failure point. Look for cracked insulation, crushed sections where the cable passes the frame, moisture at the connector, and bent or discoloured pins. A connector that has been plugged in and out many times can hold enough resistance to warm up at 48 V under heating load. Route the cable away from moving parts and heat sources, and confirm the strain relief and any covers you removed during battery installation are back in place.
3. Prove the protection functions, do not assume them
The PWD01 page describes leakage protection, short-circuit protection, high-temperature protection, high-voltage protection, water-shortage protection and high-voltage explosion-proof design. Those are the systems a pre-start check should exercise, not read about. On a machine whose battery you fitted, protection behaviour depends on your supply as much as on the machine, so treat this step as specific to the battery-free variant:
- Confirm the machine powers up normally on the battery you installed and that no protection trips during a short heat-and-pump run.
- Confirm the water-shortage response is working by running the tank low at the end of a shift, then refilling to the correct level before the next job.
- Confirm no warning appears for leakage or insulation when the machine has stood in a wet garage bay overnight.
- Log any trip, warning or unexplained shutdown with the job, the battery used and the ambient temperature, and send the record with the machine serial number to PowerDe support.
If a protection trips and you cannot explain it, the machine does not go back into service until the cause is identified. Guessing at a reset is how a wiring fault or a water ingress problem turns into an outage in the middle of a shift.
4. Verify the water supply before the heater is asked to work
The specification lists an 80 L clean-water tank, tap-water inlet with a 4-point internal-tooth joint, and cleaning through a high-pressure water gun with nozzle. Before heating: fill the tank, open the inlet and confirm water actually reaches the tank, then check the joint and the hose for weeping. Run the pump briefly and watch the supply line for air ingress, which shows up as a pulsing spray and an uneven steam pattern later. Confirm the drain and the sewage tank from the vacuum function are clear, because a blocked drain is discovered at the worst moment of a wash bay's day.
5. Check the steam and vacuum paths, and the machine's physical envelope
Heat the machine and test each mode named on the specification sheet — hot water, dry steam and wet steam — at the gun, and test the vacuum cleaner with its flat nozzle. A mode that reaches temperature but does not deliver the expected pattern usually means a nozzle, hose or seal problem rather than a heater fault. Swap to a known-good nozzle before condemning a mode.
Finally, walk the working route. The unit measures 2500 × 900 × 1050 mm and moves by autonomous driving, with the option to be stopped and driven at any time. Confirm the path in the garage or parking area is free of low overhangs, kerbs and floor drains the wheels will drop into, and confirm the operator can stop and take over the drive in the space actually available — not just in theory. A battery you supplied changes the weight distribution, so do one loaded, unloaded pass at walking pace before the first vehicle is cleaned.
6. Record the check and keep the specification of record
Keep one page per machine: battery model and serial, the date the battery was fitted, the protection checks performed, and any fault logged. If you are comparing the battery-free PWD01 against the battery-included PWD01, that record answers the question your purchasing team will ask — whether your own battery is meeting the machine's requirements.
The full specification and safety description are published on the PowerDe PWD01 (without battery) product page, and the wider PowerDe cleaning equipment series covers driving-style and hand-pushed machines for different bay layouts. Where your battery choice is non-standard, send the battery data sheet with your enquiry so the specification can be confirmed in writing before commissioning.
