Surlon Power LFP | Floor Scrubber Lithium Battery 36V 72Ah

Product Overview

The FB08 is a 36V 72Ah LiFePO4 floor scrubber battery: a 36V-class pack with 38.4V nominal voltage, 72Ah of capacity and 2.765kWh of stored energy, housed in a steel case. It is built to take the place of a 36V lead-acid bank in walk-behind and ride-on scrubbers, sweepers and industrial floor cleaners, keeping the tray layout and the between-shift charging rhythm familiar while removing the water, acid and terminal work that comes with flooded batteries.

Built as a 36V battery for commercial cleaning equipment, it suits contract cleaning companies running several machines, facility teams keeping a warehouse or a hospital floor to schedule, and equipment builders who want a custom floor scrubber battery in place of the lead-acid bank a machine was originally designed around. One pack sits where four or six blocks used to, which simplifies spares, charging points and operator training.

Inside the case are LiFePO4 cells, an integrated battery management system, and the terminals and connector arrangement agreed for the order. Pack weight is customized, so the unit can be brought close to the handling weight of the bank it replaces and to the machine's hold-down arrangement. Rated IP65, it is a pack that can go through purchasing approval as readily as it can go onto the workshop floor.

What decides whether it fits your machine is specific: the compartment envelope, the hold-down points, the connector and terminal layout, the charger profile and the current the scrubber draws. Send those details with the machine model and the answer stops being general. It is aimed at buyers and OEM buyers who want an alternative power source that lowers maintenance demands, and it suits ride-on and walk-behind scrubbers as well as other floor machine applications.

Key Features

• One case instead of a bank — the machine carries a single steel pack where it used to carry a row of lead-acid blocks, and the tray stays clear for the hold-down rather than a forest of interlinks.
• Sealed against wet floors — a dust-tight, jet-resistant housing for machines that work wet all day and get hosed down at the end of it.
• A chemistry built for daily cycling — LiFePO4 cells intended for charge and discharge every working day, not occasional standby use.
• No water, no acid, no equalising — nothing to top up, nothing to scrub off the terminals, and no periodic overcharge routine to remember.
• Output that holds through the shift — voltage stays close to nominal as the pack empties, so brush pressure and vacuum suction do not fade in the last hour.
• Weight and connections agreed to your machine — pack weight, terminal arrangement and connector layout are set against your tray and wiring instead of being assumed.
• Recharge that fits between shifts — the pack accepts a high charge current, so a suitable charger sets the turnaround rather than the calendar.
• Because LiFePO4 chemistry holds a stable voltage across the discharge curve, the scrubber keeps consistent cleaning performance instead of fading as the pack drains.

Technical Specifications

Battery Management System

Every pack carries an integrated battery management system sealed inside the case. It watches cell voltage, pack current and temperature, and it opens the circuit when any of them leaves the safe window: overcharge at the top of a charge, over-discharge when a machine is run flat, over-current when a brush stalls or a loaded ride-on machine climbs a ramp, short circuit, and over-temperature. Those are the events that quietly kill a lead-acid bank and then take a charger or a controller with them.

For a cleaning fleet, the practical effect is that abuse shows up as a trip rather than a repair bill. A pack that cuts out mid-shift is telling you something — a dragging brush, a tired charger, a machine left switched on overnight, a compartment with no airflow. Note the conditions and let us look at the case before the pack goes back into repeated service.

Current is where the specification earns its keep. The continuous and peak ratings in the table are the two numbers that matter: continuous is what a scrubber draws through a normal shift with brushes down and vacuum running, and peak covers starts, ramps and sudden loads. Tell us the inrush and stall current your machine can produce, and the duration and frequency it needs at that level, and we will confirm the configuration that suits it.

If your machine expects a communication handshake, an interlock or a specific signal from the battery, say so at the enquiry stage. What is supported on the data side is agreed per configuration rather than assumed from a voltage label.

Lead-Acid Replacement Procedure

1. Record what is in the machine now: the number of lead-acid blocks, their Ah rating, the terminal layout, the compartment dimensions and the charger make and model.
2. Isolate the machine, disconnect the negative terminal first, then the rest of the bank, lift the blocks out and clean the tray of acid residue and debris.
3. Offer the new pack into the compartment and check it against the case envelope and the existing hold-down points before any cable is connected.
4. Connect with correct polarity, tighten the terminals to the machine maker's figure and refit the hold-down so the case cannot move under steering and braking.
5. Have the charger checked against a 36V-class LiFePO4 profile, and confirm the machine's low-voltage cut-off; this is the step that most often needs adjusting on a lead-acid conversion.
6. Charge the pack, then run one representative duty cycle and record the runtime and current draw, so the first shift has a baseline to compare against.

Service Life and Maintenance

• More than 4,000 charge and discharge cycles — the figure the pack is rated to, with capacity retention measured under the stated test conditions; what a machine actually sees depends on depth of discharge, ambient temperature and how hard it is worked.
• Design life up to 10 years — a planning figure for fleet replacement budgets rather than a warranty promise, and it assumes the pack is charged and stored within its stated windows.
• Nothing to top up — no electrolyte, no distilled water, no acid handling and no corrosion to scrub off the terminals.
• No equalisation charge — a lead-acid bank needs a periodic overcharge to stay balanced; this pack does not, so the charger routine is simply shorter.
• What shortens life — leaving the pack flat for weeks, charging outside the 0 °C to 55 °C window, or parking a fully charged machine in a hot plant room through the summer.
• Seasonal storage — for a shutdown, follow the storage temperatures in the specification and bring the pack back into service with a full charge rather than a partial one.
• The whole routine is a two-minute check — terminals tight, case undamaged, cable insulation intact, charger completing normally.

Steel Housing and IP65 Protection

The housing is steel rather than a moulded plastic shell. In a scrubber tray the pack is clamped down, the machine is steered hard and the compartment collects pads, squeegee bars and whatever else gets stored on top between shifts. Steel holds its shape under those hold-downs and keeps the cells mechanically protected in a way a thin plastic case does not.

IP65 is the rating that matters day to day. The first digit means dust-tight; the second means protection against water projected as a jet from any direction. For floor cleaning equipment that covers the realistic exposures — wet floors, water thrown up by the brushes, overspray from the squeegee and vacuum, and hosing the machine down at the end of a shift.

It is not a diving rating. Do not immerse the pack, do not direct a pressure washer at the case seams or the cable entry, and do not steam-clean it. If your wash-down routine is aggressive, tell us and we will say what the pack can take rather than leaving it to chance.

Chemical exposure is a separate question from water. If the site uses strong alkaline or solvent degreasers around the machine, mention it at the enquiry stage — attack on seals, labels and connectors is worth checking before the first order instead of after the first year. The case itself is closed in service; there are no user-serviceable parts inside, and a pack that has been opened is one we can no longer support. The steel enclosure resists dust and moisture and is built to hold up in the harsh conditions typical of commercial cleaning work.

Applications

• Warehouses and distribution centres — ride-on scrubbers covering long aisles overnight. This is where a 36V battery for commercial cleaning equipment earns its keep: one pack charged at the end of the shift and ready for the next.
• Shopping centres and supermarkets — walk-behind machines working around shoppers, where steady output keeps the floor finish consistent and there is no acid store or water top-up point to manage on site.
• Hospitals and clinics — cleaning schedules that cannot slip, with machines charged overnight in a plant room; predictable runtime across the week matters more than a headline figure.
• Factories and industrial plants — heavy soil loads with brush pressure and vacuum running together, which is where the continuous current rating does the real work.
• Airports, stations and transit halls — long concourses and tight cleaning windows, where a high charge acceptance between windows keeps machines in rotation.
• Contract cleaning fleets — several machines of the same voltage class standardised on one pack type, so spares, chargers and operator training stay simple.

Custom and OEM Configurations

A standard pack covers a lot of machines, but not all of them. Where the tray is a different shape, the connector is proprietary, or the machine needs a different capacity to reach its runtime target, we build to the machine. A custom floor scrubber battery from us can change capacity, voltage, case dimensions, terminal and connector arrangement, wiring, communication protocol, housing design, and the logo and labelling that goes on the case.

The process starts with what you already have: machine make and model, a drawing or photographs of the battery compartment, the connector pinout, the charger output and profile, the continuous and peak current the machine draws, and the runtime a shift has to deliver. If you are replacing an existing pack, the old part number and its label are useful too. Engineering turns that into a proposed configuration, we build a sample, and you validate it in the machine before production is discussed.

Most requests come from three places: a machine family where the standard envelope does not fit, a fleet that wants one pack type across mixed brands, and an OEM that wants its own branding on the case and label. Changes to the housing or the connector are a separately agreed configuration, so the drawing you approve is the drawing we build to.

Charging Routine

1. Bring the machine to its charging point at the end of the shift and switch it off at the key, so nothing draws on the pack while it charges.
2. Check the temperature where the charger stands — charging is rated from 0 °C to 55 °C, and a cold loading bay in winter or a hot plant room in summer is the usual reason a charge behaves oddly.
3. Connect the charger set for a 36V-class LiFePO4 profile; the pack accepts charge at up to 0.5C, so a higher-output charger shortens the turnaround and a small legacy charger will stretch it.
4. Let the charge run to termination rather than pulling the plug for a mid-shift top-up — partial charges are for emergencies, not for the daily pattern.
5. Write down the runtime the machine delivered that day; a figure that drifts down over several weeks points at the charger, the machine or the duty cycle long before it points at the cells.
6. Before the next shift, confirm the charger has completed and that the case, cable and connector are undamaged.

Testing and Documentation

Ordering and Delivery

Orders are built to the configuration you approve, so the conversation starts with the machine rather than a part number. Send the machine make and model, the battery compartment drawing or photographs, connector and pinout details, the charger specification, the continuous and peak current the machine draws, and the runtime a shift has to cover. If you are converting a fleet, tell us how many machines are involved, which voltage classes they use, and whether the pack needs to be a custom floor scrubber battery built around an existing tray.

What comes back is a quotation for the agreed configuration, with the commercial terms that apply to it: price, order quantities, production lead time, packing and shipping arrangements. Those terms move with the configuration and the destination market, so they are confirmed in writing rather than read off a catalogue page. If you want to validate a unit in the machine first, ask your sales contact about sample availability and what a sample build involves.

The pack is offered with a five-year warranty; confirm the term that applies to your order and market in the quotation, together with the claim route if a unit ever gives trouble.

Shipping lithium batteries carries its own paperwork. UN38.3 test documentation and the transport documents for the consignment are prepared with the order, so tell us the destination country and the mode of transport early — whether the shipment is a single pack for a workshop or a 36V battery for commercial cleaning equipment going out to a fleet.

Reliable Lithium Power for Commercial Cleaning

The pack is intended to supply reliable lithium power for commercial cleaning equipment across the working day.

Product Description

As a direct replacement for lead-acid batteries in commercial and industrial floor scrubbers, it combines lithium iron phosphate cells with a battery management system to give higher energy efficiency, longer runtime and faster charging with maintenance-free operation, helping to reduce operating costs and equipment downtime.

application use and Real-World Value

Warehouses, shopping malls, hospitals and factories all ask the same thing of a scrubber battery: keep the machine running through a full shift without adding work. This battery is built for that routine. It reduces downtime and operational interruptions, and its maintenance-free design removes the job of refilling water and cleaning terminals. The result is consistent cleaning performance in demanding environments, with less labour tied up in battery care.

Technical Support & Model Matching

Technical questions reach the people who build the packs. Our engineering group in Shenzhen reviews your device's voltage window, load profile, enclosure space and charger before proposing a configuration; our sample group then builds units so you can validate fit and runtime before production. Cell selection, BMS design and pack assembly stay in-house, with quality checks in process and at final inspection, and a documentation team handling certificates, test reports and shipping papers. When a unit behaves unexpectedly in the field, our engineers help trace the fault and advise on installation and commissioning.

FAQ