Kärcher B 50 W Bp Pack 80Ah Li+FC+R55 DOSE Rinse AutoFill Professional Walk-Behind Scrubber Dryer

Compact, Intelligent Floor Cleaning with Fast-Charging Lithium-Ion Power

The Kärcher B 50 W Bp Pack 80Ah Li+FC+R55 DOSE Rinse AutoFill is a premium battery-powered walk-behind scrubber dryer designed to maximise cleaning efficiency while reducing water, detergent and labour costs. Combining a 55 cm R55 twin roller brush head, 80 Ah lithium-ion battery, 50A quick charger, integrated traction drive, and Kärcher's intelligent DOSE, AutoFill and AutoRinse systems, this compact machine delivers outstanding productivity for demanding commercial cleaning applications. With a theoretical cleaning performance of up to 3,300 m² per hour, it is ideal for facilities requiring reliable day-to-day floor maintenance.

Designed for contract cleaners, retail stores, hospitals, schools, hotels, offices and public buildings, the B 50 W Bp combines advanced automation with robust commercial construction to simplify everyday cleaning while maintaining consistently high standards.

Fast-Charging Lithium-Ion Performance

Unlike conventional battery-powered scrubber dryers, this model is equipped with an 80 Ah lithium-ion battery and 50A fast charger, allowing the machine to be fully recharged in approximately two hours.

Lithium-ion technology provides dependable runtime, rapid charging and consistent performance throughout the working day, helping reduce downtime and maximise machine availability. The maintenance-friendly battery system also supports flexible cleaning schedules, making it ideal for busy commercial environments operating across multiple shifts.

Advanced R55 Roller Brush Technology

The R55 twin roller brush head combines high-speed scrubbing with an integrated pre-sweeping function, allowing operators to remove light debris while washing the floor in a single pass.

The roller brush system continuously lifts dirt and transports loose particles into the recovery system, reducing preparation time before cleaning while delivering excellent results on both smooth and structured flooring. Combined with Kärcher's high-performance suction system, floors are left clean, dry and ready for immediate use.

Why Choose the R55 Roller Brush Over a Disc Brush?

While both roller and disc brush scrubber dryers provide outstanding cleaning performance, the R55 roller brush system offers several important advantages where productivity and versatility are priorities.

Advantages of the Roller Brush System

Integrated pre-sweeping function collects dust, grit, hair and light debris while scrubbing, reducing the need for separate sweeping.

Excellent cleaning on textured and safety flooring, maintaining consistent contact across uneven surfaces.

Superior cleaning of grout lines on tiled floors compared to traditional disc brushes.

High brush speed and contact pressure deliver powerful mechanical cleaning for stubborn dirt.

Reduced water consumption when used alongside Kärcher's Eco!Flow water management system.

Excellent edge cleaning along walls, shelving and fixtures.

Sweeping and scrubbing in a single pass increases productivity and reduces overall cleaning time.

Lower detergent consumption, thanks to the effective mechanical cleaning action of the roller brushes.

Extremely quiet roller brush operation, making the machine suitable for noise-sensitive environments such as hospitals, schools and care homes.

Ideal Applications for the Roller Brush System

The R55 roller brush head is particularly well suited to:

• Retail stores and supermarkets
• Shopping centres
• Warehouses and logistics facilities
• Hospitals and healthcare environments
• Schools, colleges and universities
• Hotels and hospitality venues
• Public buildings
• Food preparation areas
• Entrances and reception areas
• Safety flooring, textured vinyl, ceramic tiles and grout lines

A disc brush remains an excellent choice for smooth polished floors and routine maintenance cleaning. However, where facilities regularly encounter light debris, textured flooring or intensive daily traffic, the roller brush system provides greater versatility and improved cleaning efficiency.

Intelligent DOSE Cleaning Agent System

Kärcher's integrated DOSE system automatically dispenses the precise amount of detergent required during operation.

Benefits include:

• Accurate detergent dosing
• Lower chemical consumption
• Reduced operating costs
• Consistent cleaning performance
• Contact-free detergent changes using a closed-loop system
• Reduced environmental impact through less chemical waste

By applying only the amount of detergent required, the system helps lower running costs while maintaining excellent cleaning results.

AutoFill & AutoRinse for Faster Daily Maintenance

The AutoFill system allows the fresh water tank to be filled quickly from almost any tap and automatically stops when the tank reaches capacity, preventing overfilling.

The AutoRinse function automatically cleans the recovery tank without requiring direct contact with contaminated water, improving hygiene while reducing end-of-shift maintenance time. Together, these automated systems help maximise productivity and machine availability.

Eco!Flow Intelligent Water Management

Kärcher's Eco!Flow technology automatically adjusts water consumption according to the machine's travelling speed.

• This intelligent system provides:
• Consistent cleaning performance
• Reduced water usage
• Lower operating costs
• Improved cleaning efficiency around bends and corners
• Greater environmental sustainability

The result is efficient floor cleaning with minimal waste of water or detergent.

Durable Aluminium Construction

The B 50 W Bp has been built for intensive commercial use with a cast aluminium roller brush head and die-cast aluminium squeegee fitted with Linatex® suction lips.

• These premium components deliver:
• Outstanding durability
• Excellent suction performance on structured floors
• Reliable water recovery around tight corners
• Reduced maintenance requirements
• Long service life

Their heavy-duty construction helps minimise downtime while reducing long-term ownership costs.

Machine Connect Smart Connectivity

Using Kärcher's Machine Connect smartphone app, operators and fleet managers can access valuable machine information and additional operating functions.

• The app enables users to:
• Monitor machine performance
• View maintenance guidance
• Access troubleshooting information
• Adjust selected operating parameters
• Manage Kärcher Intelligent Key System (KIK) user permissions

This connected technology simplifies fleet management while helping maximise productivity.

Kärcher Intelligent Key System (KIK)

The integrated Kärcher Intelligent Key System (KIK) allows businesses to assign personalised access rights for different operators.

Benefits include:

Controlled access to machine settings

• Reduced operator errors
• Standardised cleaning programmes
• Faster operator training
• Support for over 30 operating languages

This intelligent user management system helps ensure consistent cleaning quality while protecting valuable equipment.

Compact Design with Excellent Manoeuvrability

Despite its generous 50-litre clean and recovery tanks, the B 50 W Bp remains compact and highly manoeuvrable.

Its slim profile provides excellent visibility and easy handling in narrow aisles, around shelving, furniture and confined commercial spaces. The integrated traction drive further reduces operator fatigue, making extended cleaning sessions more comfortable.

Ideal Applications

The Kärcher B 50 W Bp Pack 80Ah Li+FC+R55 DOSE Rinse AutoFill is ideal for cleaning:

• Retail stores and supermarkets
• Shopping centres
• Hospitals and healthcare facilities
• Schools, colleges and universities
• Hotels and hospitality venues
• Office buildings
• Warehouses and logistics centres
• Public buildings
• Food preparation areas

Hard floors including textured safety flooring, vinyl, terrazzo, resin, sealed concrete, ceramic tiles and grout lines.

How Does This Model Differ from the 1.533-251.0 Version?

The main difference is the battery and charging system. This 1.533-241.0 model uses a lithium-ion battery with a high-output quick charger, while the 1.533-251.0 model uses a maintenance-free AGM battery with a conventional onboard charger. Both machines otherwise share the same R55 roller brush system, cleaning width, tank capacity, traction drive, DOSE detergent control, AutoFill, AutoRinse and connected machine functions.

1.533-241.0 lithium-ion model: Best for operations that need rapid recharging, flexible opportunity charging and minimal downtime between cleaning shifts.

Fast recharge: The lithium-ion version can be fully charged in around two hours using its 50 A quick charger.

Opportunity charging: Lithium-ion technology is better suited to short top-up charges during breaks, helping keep the machine available throughout a busy working day.

Lower machine weight: The lithium-ion model is lighter, which can support easier handling and transport.

1.533-251.0 AGM model: Offers a longer stated runtime of up to 2.5 hours, compared with approximately two hours for the lithium-ion version.

Longer conventional charging: The AGM version has a stated charging time of around 10 hours, making it more suitable for businesses that normally recharge the machine overnight.

Why Choose the Kärcher B 50 W Bp Pack 80Ah Li+FC+R55 DOSE Rinse AutoFill?

The Kärcher B 50 W Bp Pack 80Ah Li+FC+R55 DOSE Rinse AutoFill combines fast-charging lithium-ion technology with advanced roller brush cleaning to maximise productivity in demanding commercial environments. Its integrated pre-sweeping function, intelligent DOSE detergent system, Eco!Flow water management, AutoFill, AutoRinse, Machine Connect connectivity and robust aluminium construction help reduce cleaning time while lowering water, detergent and maintenance costs.

For organisations cleaning textured flooring, busy public spaces or facilities where loose debris is common, the R55 roller brush system provides clear productivity advantages over traditional disc brush machines. Whether maintaining hospitals, retail stores, schools, warehouses or public buildings, the B 50 W Bp delivers the efficiency, durability and professional cleaning performance expected from Kärcher's premium commercial floor care range.