Is this 315Ah counterbalance forklift battery the right size for your truck
Sizing a lithium forklift battery goes wrong in two directions, and both cost money. Too small and your operators are hunting for a charger mid-shift. Too large and you've paid for energy that never leaves the pack. Here's where this one lands.
This pack is the right call when
Your truck runs a 48V electrical system
One shift is 8–10 hours of ordinary warehouse duty, or you can plug in during breaks to cover two
The battery compartment is close to 827 × 625 × 627mm, or you can send us the tray drawing
The lead-acid pack you're pulling out weighs somewhere near 850kg
You need the truck's load chart to stay exactly as it is
Look at a larger pack when
Round-the-clock operation with no realistic window to plug in, heavier average loads, or a deeper tray to fill. In those cases the extra capacity pays for itself, and the same drop-in fit and ballast matching goes into every Polinovel counterbalance forklift lithium battery we build:
Not sure which way to go? Send the truck model and your shift pattern. Polinovel engineers size the pack for you and will say so plainly if a different capacity is the better buy.
Full specifications for the Polinovel FL51315 forklift lithium battery
Everything below is the shipped configuration of this Polinovel counterbalance forklift lithium battery, not a product-family range. Where a value is selectable, the options are listed.
| Electrical specifications | |
|---|---|
| Nominal Voltage | 51.2V |
| Nominal Capacity | 315Ah |
| Energy | 16128Wh |
| Self Discharge | <3% per month |
| Cycle Life | >4000 cycles |
| Charge & discharge specifications | |
|---|---|
| Charge Current | 150A |
| Charge Cut-off Voltage | 58.4V |
| Charge Terminal / Connector | REMA |
| Discharge Current | 150A |
| Discharge Cut-off Voltage | 44V |
| Discharge Terminal / Connector | REMA |
| Mechanical specifications | |
|---|---|
| Dimensions (LxWxH) | 827*625*627mm |
| Weight | 852kg |
| Case Material | SPCC |
| IP Rating | IP54 / IP65 / IP67 |
| Cell Type | LiFePO4 |
| Temperature & other specifications | |
|---|---|
| Charge Temperature | 0°C to 55°C / 32°F to 131°F |
| Discharge Temperature | -20°C to 60°C / -4°F to 140°F |
| Storage Temperature | 10°C to 45°C / 50°F to 113°F |
| Display | LED Display |
| Communication | RS485 / CAN |
| Shipping Classification | UN3480, Class 9 |
How this 48V lithium pack replaces the lead-acid battery in your counterbalance forklift
Weight is the part most lithium retrofits get wrong. A counterbalance truck borrows part of its rear counterweight from the battery sitting behind the operator, so a pack that arrives 200kg lighter than the one it replaced quietly reduces rated capacity at height. Nobody notices until a load won't come off the top rack.
That's why this one ships at 852kg in an 827 × 625 × 627mm SPCC case, and why both figures are engineered against your tray rather than taken off a shelf. Your load chart stays valid and your safety officer has nothing to re-certify.
The rest of the swap is uneventful, which is the point. REMA connectors on both the charge and discharge sides mate to existing harnesses. CAN or RS485 feeds state of charge, temperature and health to the truck display or your fleet software. An LED readout with a low-SOC warning keeps the operator informed on trucks with no data bus at all. Every Polinovel forklift lithium battery leaves the factory configured this way rather than adapted on your workshop floor.
What changes when your fleet moves from lead-acid to a LiFePO4 forklift battery
The purchase price of a lithium forklift battery is higher. Everything after the purchase is cheaper. This is where the difference actually shows up for a fleet.
| This 48V lithium pack | Conventional lead-acid | |
|---|---|---|
| Cycle life | 4,000–6,000 cycles | 300–500 cycles |
| Full charge | 1–2 hours at 150A | 8–10 hours |
| Charging between shifts | Top up during breaks, no cycle penalty | Full cycle required, plus cool-down |
| Voltage under load | Flat to the 44V cut-off | Drops steadily as it discharges |
| Routine maintenance | None | Watering, equalising, terminal cleaning |
| Hazardous content | No sulfuric acid, no heavy metals | Acid spills, fumes, containment |
| Fleet data | SOC, SOH and temperature over CAN/RS485 | Not available |
| Spare pack needed | No, one pack covers multi-shift | Usually one spare per truck |
Why fleet buyers order this wholesale 48V counterbalance forklift battery from Polinovel
852kg keeps your load chart intact
The pack is built to 852kg and 827 × 625 × 627mm, and both are configurable against the tray you measured. Match the mass of the outgoing lead-acid unit and residual capacity at height is unchanged, which means no re-rating, no operator retraining, and no awkward conversation with your safety manager six weeks after commissioning.
150A charging removes the second battery
Full in 1–2 hours against 8–10 for lead-acid, and partial top-ups during breaks carry no cycle-life penalty. One pack per truck covers two or three shifts. That deletes a whole line from the budget: no spare battery, no changing station, no charge-room floor space, no crew time spent swapping 850kg of hardware twice a day.
Over 4,000 cycles with nothing to service
No watering, no equalisation charge, no acid containment. Across five years that works out to as much as 10× the service life, up to 70% less maintenance cost, up to 30% lower energy consumption and up to 30% more uptime. Those are the figures that get a capex request approved, not the number on the invoice.
Five-year cost of ownership
Over a five-year holding period the money moves out of the battery invoice and into labour, electricity and downtime, all three of which fall.
10×
Service life vs lead-acid
70%
Lower maintenance cost
30%
Lower energy consumption
30%
More operational uptime
Want this modelled against your own fleet? Send truck count, shift pattern and what you currently spend on battery labour. We'll come back with a five-year comparison using your numbers, not ours.
How Polinovel builds the enclosure, cells and BMS into every forklift lithium battery
Sealing grade on a Polinovel counterbalance forklift battery is chosen per site rather than fixed at one level. IP54 suits dry indoor warehousing, IP65 handles wash-down bays and dusty production floors, and IP67 is what you specify for ports, intermodal yards and anywhere salt air or standing water reaches the case.
SPCC case, automotive e-coating
Cold-rolled SPCC steel enclosure finished with an automotive-grade e-coat. In a twenty-year-old warehouse with acid residue still in the floor slab, that finish is the difference between a case that reaches the end of its warranty and one that pits through at the mounting feet.
Power-grade LiFePO4 cells
Power-type cells hold 150A discharge through repeated mast lifts rather than a single rated burst. Self-discharge stays under 3% a month, so a truck parked through a plant shutdown is still fit to run when the fleet comes back.
REMA terminals, automotive cable
REMA connectors on charge and discharge sides with automotive-grade cable, so the pack mates to existing truck harnesses and lithium chargers without adapters. Anderson terminals are available where a fleet is already standardised on them.
What the BMS is actually doing
It reads every cell continuously and acts before a fault reaches the truck. Protection covers overcharge, over-discharge, overcurrent, short circuit, over-temperature and low-temperature, with intelligent cell balancing keeping usable capacity from drifting down as the pack ages.
The useful part for you is the data. SOC, temperature and state of health go out over RS485 or CAN, which turns battery condition from a monthly inspection task into something your maintenance planner already has on screen.
- Overcharge and over-discharge protection
- Overcurrent and short circuit protection
- Over-temperature and low-temperature protection
- Intelligent cell balancing
- CANbus and RS485 communication
- LED display with low-SOC operator warning
Warehouse, cold storage and port fleets running this 48V lift truck battery
The 315Ah size is aimed at single-truck, multi-shift duty. Sealing grade, heating option and case weight are all set before production, so tell us the environment rather than the average. Polinovel supplies this 48V lift truck battery to warehouse operators, equipment dealers and fleet retrofit projects worldwide.
Warehouse operations
High-throughput picking floors. Break-time top-ups keep trucks in the aisle through consecutive shifts instead of queuing at a charge bay.
Distribution centres
Mixed pallet weights across a long shift. Flat voltage means the last container of the night unloads at the same lift speed as the first.
Manufacturing plants
Vibration, dust and ambient swings line-side. IP65 sealing and the SPCC enclosure handle it without adding an inspection routine.
Cold storage
Rated to -20°C as standard. The optional heating function extends reliable charging and discharging down to -40°C for freezer fleets.
Ports and intermodal yards
Specify IP67 here. Sealed, corrosion-resistant construction takes salt air and wash-down without moisture tracking into the pack.
Construction sites
Dust, moisture and no fixed charge room. Fast recharge from a site supply keeps material handling moving between deliveries.
Counterbalance forklift brands it drops into
Engineered as a direct replacement for most major counterbalance trucks on a 48V system. Send the model and your compartment measurements and we confirm fit against a drawing before anyone quotes a price.
Toyota
Hyster
Yale
Crown
Hyundai
Clark
Doosan
Jungheinrich
Linde
Raymond
Running a mixed-brand fleet, or reselling as a dealer? That's the normal case, not the hard one. Send the list and Polinovel will map each truck model to a pack configuration in one document.
Custom OEM forklift lithium battery manufacturing when the standard case doesn't fit
Polinovel is a custom forklift lithium battery OEM manufacturer, so start by sending the tray drawing and the weight of the lead-acid pack you're replacing. The case and its ballast are engineered to that envelope before tooling starts, which is why a fleet-wide retrofit doesn't turn into a series of one-off modifications on your workshop floor.
Configured per order
How a project runs
Certification and factory testing behind every Polinovel LiFePO4 forklift battery
Certification on a wholesale forklift battery order decides two things you care about: whether the shipment clears your customs broker, and whether it clears your own site safety review. These are the standards our industrial packs are built and tested to.
Standards
UL 2580 – the recognised safety standard for motive power batteries in industrial vehicles
IEC 62619 – safety requirements for industrial secondary lithium cells and batteries
UN 38.3 – transport testing, required for any international lithium shipment
CE – conformity for the European market
Warranty and support
Every pack carries a 5-year or 10,000-hour warranty. Technical support runs 24/7 by phone and email and covers commissioning questions, error-code interpretation and charging strategy tuned to your actual duty cycle.
For fleet accounts we also handle preventive check-ups and emergency response, so a fault on one truck doesn't become a week of email across time zones.
Packaging and shipping on wholesale and bulk orders of lithium forklift batteries
Every Polinovel lithium forklift battery ships as UN3480, Class 9. That classification drives the paperwork on your side, and we prepare it rather than leaving your forwarder chasing documents at the port.
At 852kg a unit, handling is mechanical from our floor to yours. Packs ship crated and secured for sea freight with lifting points marked on each crate. Crate dimensions, stacking limits and container loading plans are confirmed against your final configuration at order stage, because case size changes with the compartment we build to.
Prepared for your forwarder
UN 38.3 test summary
Dangerous goods declaration, Class 9, UN3480
Commercial invoice and packing list
MSDS on request
Container loading plan for consolidated fleet orders
MOQ and lead times on the 48V 315Ah counterbalance forklift battery
MOQ and lead time on a wholesale counterbalance forklift battery order both depend on configuration, which is why there's no table here. A standard-dimension pack with REMA terminals and IP54 sealing moves through production faster than a custom case with matched ballast, a mapped CAN protocol and a heating circuit. Quoting one number for both would be no use to you.
Send the configuration and Polinovel returns MOQ, lead time and price together in a single quotation, with drawing approval and sampling scheduled against your retrofit date. If you're phasing a fleet conversion across quarters, production is scheduled to your rollout instead of arriving all at once and occupying your warehouse.
Three things get you a real number: forklift brand and model, compartment dimensions, and the weight of the pack you're replacing.
Polinovel FL51315 counterbalance forklift battery gallery
Polinovel is your factory direct counterbalance forklift battery manufacturer and supplier
Polinovel is a dedicated forklift lithium battery manufacturer and OEM supplier working out of Longgang District, Shenzhen, building LiFePO4 packs for material handling, industrial equipment and electric vehicle fleets. You're buying from the factory that engineers the case, assembles the cells and writes the BMS configuration, not from a trading desk quoting someone else's catalogue.
Engineering starts at your compartment
Fit and ballast are design inputs here, not afterthoughts. Drawings get approved before tooling and the approved drawing governs every unit in the series, so what arrives in month six matches what you signed off in month one.
One team, quote to shipment
As a factory-direct lithium forklift battery supplier, quotation, engineering changes and the production schedule all sit with the same people. Fewer handoffs, fewer places for a fleet order to quietly lose a week.
Tested to international standards
Polinovel packs are validated against UL 2580, IEC 62619, UN 38.3 and CE requirements, with the document set prepared per shipment so your compliance and logistics people have what they need up front.
Support through the service life
A 5-year or 10,000-hour warranty, 24/7 technical support, and remote diagnostics through the pack's own CAN or RS485 data. Support doesn't stop at the bill of lading.
Questions buyers ask before ordering a 48V counterbalance forklift lithium battery
Will a 315Ah lithium pack keep my counterbalance forklift's rated capacity?
Yes, as long as the pack weight matches the lead-acid unit it replaces. FL51315 ships at 852kg and case weight is configurable, because a counterbalance truck takes part of its rear counterweight from the battery. Polinovel engineers ballast against your outgoing pack weight, so the load chart and residual capacity at height stay exactly as certified.
How long does one charge last, and how long does charging take?
16128Wh covers 8 to 10 hours of continuous operation on ordinary warehouse duty. Real runtime moves with load weight, lift height and travel distance. At 150A the pack is back to full in 1 to 2 hours, and partial top-ups during breaks carry no cycle-life penalty, which is what lets a single pack cover multi-shift operation.
Can I keep my existing lead-acid charger?
No. Lead-acid charging profiles don't work correctly with LiFePO4 cells and the BMS will reject them. You need a lithium charger matched to a 58.4V cut-off and 150A charge current. Polinovel supplies matched chargers and confirms compatibility with your existing infrastructure before anything ships.
Does this pack work in cold storage?
Yes. Discharge is rated from -20°C to 60°C as standard, with charging from 0°C to 55°C. For freezer-room fleets, the optional heating function extends reliable charge and discharge down to -40°C. Tell us the environment at enquiry so heating and IP grade are built in rather than retrofitted later.
Which IP rating should I specify?
IP54 for dry indoor warehousing, IP65 for wash-down bays and dusty production floors, IP67 for ports, intermodal yards and outdoor work exposed to salt air or standing water. It's set at build and isn't a field upgrade, so specify against the worst environment any truck in the fleet sees, not the average.
What does the truck need for CAN or RS485 integration?
Every Polinovel counterbalance forklift battery outputs state of charge, temperature and state of health over RS485 or CAN. Send your controller model and protocol at enquiry and the mapping is configured before shipment. An LED display with low-SOC warning is fitted either way, so operators still have a readout on trucks with no data bus.
How is it shipped, and what documents come with it?
Shipment is classified UN3480, Class 9. Every consignment travels with the UN 38.3 test summary, a dangerous goods declaration and full commercial documentation, with MSDS available on request. At 852kg per unit, crates are marked for mechanical handling at both ends.
Can you supply under our own brand?
Yes. Polinovel is an OEM and private-label forklift lithium battery manufacturer, covering case branding, nameplate, manual and the full documentation set. Volume, tooling requirements and lead time are confirmed together at quotation.
Request a quote from Polinovel, your counterbalance forklift battery manufacturer
Include your truck model, compartment dimensions and the weight of the lead-acid pack you're replacing. With those three, we come back with a fit confirmation, MOQ, lead time and price. Not a request for more information.
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