Surlon Power LFP | Floor Scrubber Lithium Battery 24V 410Ah

Product Overview

The 24V 410Ah LiFePO4 battery behind the FB09 is built for the 24V-system class of floor cleaning equipment: 25.6V nominal, 410Ah nominal capacity and 9.84kWh of stored energy held inside a steel enclosure. LiFePO4 is the chemistry chosen here because a scrubber works a full shift, charges overnight and repeats that cycle for years — the pack is specified for stable output and a long cycle count rather than for the smallest possible case.

This is a project pack rather than a shelf item. Dimensions and weight are customized because battery bays differ from one scrubber platform to the next: deck height, ballast position, cable routing and terminal access all change the enclosure. You send the compartment drawing and the connector layout; the pack is built to that envelope, and the same drawing becomes the reference for every later order.

Most installations are ride-on and walk-behind scrubbers, sweepers and commercial cleaning machines working in warehouses, distribution centres, hospitals, shopping centres and factory floors. In those sites the move away from lead-acid is usually about maintenance and shift continuity: no watering, no equalising charge, no acid deposits on the terminals, and a pack that can be opportunity-charged between shifts.

Every order is tied to a documented configuration. Rated voltage, capacity, current limits, enclosure arrangement and connector details are recorded against the revision you approve, so a repeat order matches the first one instead of drifting.

One point worth stating plainly: a 24V-system label on the old battery does not make this a fit-anything part. The pack is a matched component, reviewed against your machine's voltage window, charger, compartment and interface before it is built.

Specifications

Machine and Charger Compatibility Review

A 24V battery pack for industrial floor scrubbers only works when four things agree: the machine's voltage window, the charger's profile, the compartment, and the connector. We review all four before a pack is released for build.

Voltage window. The controller has an operating range and a low-voltage cut-off. LiFePO4 sits at a higher and flatter voltage than a lead-acid string of the same nominal class, so a controller set up for lead-acid may read the pack as full for too long or cut out early. Send the controller's permitted input range and its cut-off behaviour, and the discharge curve is checked against it.

Charger profile. Give us the make and model of the charger, its output voltage, its charge curve and how it terminates. Lithium charging is constant-current then constant-voltage with a defined cut-off, and a lead-acid charger with a float or equalise stage is not automatically suitable. Where a charger change is part of the project, we say so before the order rather than after delivery.

Compartment and mass. The enclosure is built to your drawing, but the machine also has to carry it. Floor loading, fixing points and the clearance needed to lift the pack in and out all count, and a steel enclosure is often the right answer for a bay that was designed around a lead-acid set in the first place.

Connector, polarity and interface. Connector type, pinout, cable length and polarity are agreed in writing. Any communication or interlock the machine expects — a key-switch signal, a relay, a controller handshake, a charge-inhibit line — is confirmed with the machine supplier. If the machine needs an interface the standard configuration does not carry, that becomes a separately agreed build.

Compatibility is a review, not a claim. Once those four points are confirmed in writing, the configuration is fixed and the drawing is issued against it.

Electrical Load and Operating Voltage

• Continuous duty sits at 0.2C. The continuous charge and discharge rating is the band a scrubber works in while scrubbing, squeegeeing and travelling between aisles. Size the machine's normal duty around it rather than around the peak figure.
• 1C is a peak, not a cruise. The maximum discharge current is listed at 1C, which covers brush-motor start-up and pump kick-in. Treat it as a short event, and tell us how long the surge lasts and how often it repeats so the limits can be confirmed for the exact configuration.
• The voltage curve is flat, then steep. On this 24V 410Ah LiFePO4 battery the voltage holds steady through most of the discharge and falls quickly near the end. Controllers that estimate state of charge from voltage alone will read differently than they did with lead-acid.
• Low-voltage cut-off needs resetting. A cut-off chosen for a lead-acid string can leave usable capacity unused or let the pack run too deep. Set it for the lithium discharge curve and have the setting confirmed by the machine supplier.
• Runtime comes from measured current. Stored energy is a nominal figure on a defined test basis; the shift length you actually get depends on average current, floor type, squeegee pressure, travel speed and how often the machine stops. Log current over a real cleaning cycle before committing to a shift plan.
• Hot floors change the numbers. A sunlit loading bay or an unventilated plant room narrows the current the pack should be asked for, so leave margin in the duty cycle during summer shifts.
• Long cable runs add resistance. Check cable cross-section against the current you plan to draw; undersized wiring shows up as voltage sag under load, not as a battery fault.

Installation, Connectors and Communication

1. Start with the bay drawing. As a cleaning machine battery supplier we build to the envelope you send, so the compartment drawing comes first: internal dimensions, deck height, fixing points, lifting clearance and the cable route.
2. Fix the connector before the enclosure. Connector type, pinout, polarity and cable length are agreed in writing. A mating connector that arrives without its pinout confirmed is the most common reason a retrofit stalls on site.
3. Agree any interface with the machine supplier. If the scrubber expects a key-switch signal, a relay, a controller handshake or a charge-inhibit line, confirm it with the equipment maker so it is built into the agreed configuration.
4. Plan the lift and the restraint. A steel-enclosed pack is heavy and it sits in a machine that vibrates, so agree lifting points and the bracket or strap arrangement rather than reusing the original lead-acid hold-down.
5. Check clearance around the terminals. Leave room for cable bends, a fuse and a torque wrench; a terminal that cannot be reached is a terminal that will be left loose.
6. Commission in order. Polarity, insulation, terminal torque and connector seating first, then a first charge on the approved charger with someone watching temperature and termination behaviour.
7. Record what was fitted. Note the pack revision, the charger used and the cut-off setting in the machine's service file, so the next replacement or the next machine in the fleet matches without another drawing exercise.

Charging and Cleaning Environment

• Charge inside the charging window. Charging is rated from 0 °C to 55 °C. A cold loading bay in winter or an unventilated plant room in summer can sit outside that window, and charging outside it is what shortens pack life.
• Discharge runs wider. The discharge window reaches further in both directions than the charging window, which covers cold-store work and hot factory floors, but the current you should ask for narrows towards the ends of that range.
• Get the charger approved by both sides. Send the charger model and profile; the battery side and the machine supplier should both accept the charging limits and termination method before the first charge, and a charger change may form part of the project.
• The enclosure rating has limits. Dust and water-jet protection applies within the stated conditions. It is not permission to immerse the pack, steam-clean it or pressure-wash the installation, and foam or chemical spray should not be directed at the charge inlet.
• Wet floors are the normal case. This 24V battery pack for industrial floor scrubbers lives on a wet machine, so route the charge cable clear of the squeegee path and keep the inlet covered when it is not in use.
• Vibration is continuous. Scrubber decks vibrate all shift. Check that cables are clipped, connectors are locked and the pack is restrained, and put that check into the weekly routine rather than the annual service.
• Ventilate the charging area. Charge where air moves, keep the bay away from solvent and chemical storage, and keep it clear of the machine's wash-down zone.

Model Documents and Certification Scope

Sample Evaluation and Project Review

1. Agree what a pass looks like. Before a sample ships, settle the acceptance criteria with your engineering team: fit, connector seating, charging behaviour, runtime under a defined duty, and the temperature the machine will actually see.
2. Check the sample against the drawing. Model, revision, dimensions, weight, terminal positions and cable clearance — a sample that matches the drawing is the only one worth scaling.
3. Run it on the real charger. Confirm charging behaviour, termination and temperature rise with the charger you will use in service, not a bench supply.
4. Run it on the real controller. Validate the voltage window, the cut-off point and the load peaks with the machine's own controller and wiring in place.
5. Measure a real shift. Time a full cleaning cycle at the machine's normal settings and record current, runtime and the state of charge at the end; capacity on its own is not a runtime figure.
6. Review the service routine. Operating and storage instructions, inspection points and the cable-and-fixing checks should be written into the fleet routine before the first machine goes into service.
7. Send the project brief for production review. As a cleaning machine battery supplier we need the machine model, voltage limits, steady and peak current with duration, shift length, charger details, compartment drawing, connector and communication requirements, sample quantity, expected volume and destination market.
8. Confirm the commercial details with your sales contact. Availability, lead time, packing and shipping arrangements are confirmed for the quoted configuration rather than carried over from a previous order.

Repeat Order Configuration

• When the enclosure is built to your compartment, the approved drawing, connector schedule, BMS settings, label text and packing details are combined into one configuration reference for the FB09 24V 410Ah LiFePO4 battery. A repeat order is placed against that reference, not against a general product name.
• The compartment drawing is given a revision number when you approve it. Production checks the enclosure dimensions, terminal positions, fixing points and cable exits against that revision; if the bay changes, it becomes a new revision and a new build rather than a silent alteration to an existing order.
• Keep the first accepted sample and its inspection record. On later batches, the same key points are compared with that reference: overall size, weight, terminal layout, connector type and cable length, followed by a final inspection before packing.
• Connectors, cable lengths, BMS settings and enclosure details are not substituted because another part is easier to obtain. Any proposed change is put to you in writing with its effect on fit, current limits and the document set before it enters a repeat batch.
• Each pack carries the model, configuration reference and revision on its label, and the packing list repeats the same identity. A service team can then match a replacement to the machine that was commissioned rather than to a similar-looking battery.
• Add the configuration reference and machine number to the machine's service record. When you reorder, quote that reference so sales and engineering pull the same drawing, connector schedule and documents instead of rebuilding the specification from memory.
• For a mixed fleet, keep one configuration reference per scrubber platform, not one per order. Machines that share a bay and interface can share a pack; a platform with a different bay, controller or charger gets its own reference, which prevents a near-match from being fitted across the fleet.
• Check the first delivery against the approved drawing and reference sample before releasing packs to machines: label, overall dimensions, terminal positions and connector. Record the result, because catching a picking or transit error at the stores door is cheaper than finding it with a scrubber stripped down on a ward floor.

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