A product brief that names a model and says "with battery" usually reads as complete to the person who wrote it. For a PowerDe steam cleaning machine such as the hand-pushed HMW3 series, the battery phrase is only one line in a specification sheet that a purchasing team still has to interpret. The gaps below are the ones that most often stop a comparison between a "with battery" and a "without battery" variant, and each of them can be closed with a short written answer.
What the battery wording actually has to cover
The published parameters for the hand-pushed HMW3 list a 48 V battery as the working power supply, and the cleaning-equipment catalogue carries both a "without battery" and an "including battery" version of the same machine. Those two facts sit next to each other but do not explain each other. A buyer comparing the variants needs:
- Battery capacity and rated energy, stated in the units your datasheet uses, not "long runtime".
- Continuous working time at rated output, and whether that figure is for dry steam, wet steam, or a mixed duty cycle.
- Charger output and recharge time, plus whether the machine can run on mains power while the battery is charging.
- Battery replacement terms: which parts are consumables, expected service interval, and whether a replacement pack is stocked as a spare part.
A brief that leaves these four items blank transfers the whole risk assessment to the buyer. Two buyers will fill the blank with two different assumptions, and neither assumption is on the record.
The power figures that are published but not connected
The HMW3 detail page publishes heating power of 4.5 kW with a PTC semiconductor heater, alongside the 48 V battery supply. That is a reasonable statement of two facts, but the relationship between them is missing. Buyers of cleaning equipment for mobile work normally ask three follow-up questions:
- Does the heater run at full 4.5 kW continuously on battery, or in a staged / modulated mode?
- Is the 4.5 kW figure an input-power rating or a heating-element rating, and is there a warm-up time before steam is available at the nozzle?
- Which supply arrangement does each option imply — battery-only operation, mains charging with a tether, or a swappable pack?
None of these are unusual requests. A short sentence per question in the brief settles them without exposing anything the buyer would not need in an engineering review.
Operating limits that were not published on the product page
Dimensions, movement method, tank volume, water inlet type and cleaning method are recorded for this machine class: roughly L1150 × W520 × H1030 mm, hand push, a 50 L clean-water tank, tap-water inlet with a 4-point internal-tooth fitting, dry steam and wet steam modes, and a high-pressure water gun with nozzle. Steam temperature and steam pressure, however, are not published on that page. For a cleaning process, those two numbers are the core of the method, so the brief either states them or states that they are supplied on request. The same applies to the accessories and consumables an operator needs on day one.
Application scope, and what the brief should not claim
The catalogue copy for this machine type covers cleaning and disinfecting hospital beds and medical machinery, and Shenzhen PowerDe Automation Precision Equipment lists a wider cleaning range — kitchens, hotels, commercial cleaning, industrial maintenance and public facilities — at company level. Company-level applications are not the same as a validated machine-level application. Where a buyer wants the machine for a surface or environment outside the written scope, the brief should say how that question is answered: a written confirmation from engineering, a test on the buyer's own sample, or a referral to a customised configuration.
A short checklist to attach to the brief
| Item to confirm | Why it decides the purchase |
|---|---|
| Battery capacity, runtime, charger, recharge time | Determines whether one shift of work is possible between charges |
| Steam temperature and steam pressure | Sets what soils the method can handle without chemicals |
| Tank volume, water inlet, hose and wand lengths | Determines refill frequency and reach across the work area |
| Protection functions and their behaviour | Supports the site safety review and operator training |
| Warranty scope, consumables, spare battery availability | Drives the total cost the finance review sees |
| Certification documents for the destination market | Decides whether the order can clear customs and be installed |
| Lead time, packing list, shipping terms | Fixes the delivery schedule quoted to the end user |
How to close the gaps without slowing the quotation
The practical route is a two-column sheet: the published parameters on the left, the missing items on the right, with an answer or a "supplied on request" note beside each one. Buyers use that sheet as their evaluation record, and it prevents the situation where a "with battery" model and a "without battery" model are treated as interchangeable because nothing on paper separates them.
If your facility needs a configuration outside the published parameters — a different power arrangement, a different tank volume, or an application outside the written scope — PowerDe lists engineering services, product development and hardware testing for exactly that kind of requirement. Send your surface types, working hours and site constraints and the specification question can be answered on paper before a sample order is placed.
