Battery sprayers for application under cover
A professional battery sprayer is chosen on its flow, its pressure and its nozzle, not on the volume of its tank. Four battery-powered units are listed here, from 5 to 35 litres, knapsack or trolley-mounted, for foliar application in enclosed environments.
The four references
- Pulmic Pegasus 15 — 15 litres knapsack-mounted, 18 V lithium battery, three speeds covering 1 to 3 bar, diaphragm pump with Viton seals, Spanish manufacture. Quoted runtime: 7 hours, at low flow.
- Pulmic Pegasus 35 — the same logic in 35 litres on wheels, with a 6 metre reinforced hose, fibreglass lance and three interchangeable nozzles. Quoted runtime of 4 to 7 hours.
- Pulmic Taurus Air+ 15 L — 15 litres motorised, stated for liquids and powders. It works with a carrier air stream: it is a mist blower, not a hydraulic sprayer, and the deposit is not comparable.
- Water Master Nebula 5 L — 5 litres, flow adjustable from 50 to 260 ml/min, 2.6 kg. This unit is refurbished equipment, a point to know before ordering.
Sizing by volume per unit area
A professional thinks in spray volume per hectare, then in forward speed; tank capacity is only a refilling constraint.
- The flow and pressure actually used. The Pegasus units document a range of 1 to 3 bar; the Nebula, 50 to 260 ml/min. The Taurus Air+ does not publish these values, so ask before ordering.
- The nozzle. It is the nozzle, not the pump, that sets the droplet size class of the spray: a fine spray quality improves coverage and leaf retention but increases drift, a coarse one does the opposite. Since no volume median diameter is documented for these units, the actual deposit is verified with water-sensitive papers placed in the canopy.
Runtime, maintenance and conditions of use
Quoted runtimes are given at reduced flow with a new battery; in sustained use, having a second battery counts for more than the figure on the sheet. Fifteen litres means 15 kilograms carried on the back: beyond 20 litres, the wheeled version is a working condition, not a comfort.
The seals determine what the unit can take — FKM seals, known as Viton, withstand formulations that standard seals do not; have compatibility confirmed by the manufacturer before using any unusual product. Maintenance comes down to a few actions: filter and strainer kept clean, rinsing with clean water between products, management of the tank residue, and nozzle checks — a worn nozzle increases flow without warning and falsifies the dose.
Professional use of plant protection products requires an individual certificate of competence for the operator. Periodic inspection obligations do not cover every category of equipment: check the applicable regime with the competent authority. Dose and application conditions are a matter for the product label and for qualified advice. Supplied to order, lead time stated on the quotation.
This equipment forms part of the approach set out in site hygiene and protection: zoning and scouting come before the tool. An application temporarily raises the humidity of the room, a subject covered by industrial dehumidification. For non-professional use, the pest and disease treatments section remains the general catalogue's entry point, and our article on identifying pests sets out what to look for.
