LiFePO4 Battery Packs for AGV & AMR Warehouse Robots

Warehouse robots are bought on uptime, and the battery is a designed-in component — not a commodity swap. Its dimensions, connector and communication protocol are defined by the robot, and a pack that reports its state cleanly to the controller is part of the fleet-management system. LJY Energy coordinates configurable 24V and 48V LiFePO4 battery packs for AGV and AMR manufacturers, warehouse-automation integrators and AGV service companies. Every configuration — enclosure, connector, BMS protocol, charger pairing — is confirmed against the specific robot model during technical review before quotation.

The platform at a glance

Voltage classes: 24V (25.6V) and 48V (51.2V)
Capacity platform: roughly 40–200Ah depending on class; larger tugger and forklift-AGV formats as engineered projects
Duty profile: shallow cycles with multiple partial charges per day (opportunity charging, dock or plug-in)
Communication: CAN / RS485 smart BMS options (SOC, voltage, current, temperature, fault flags)
Enclosure: low-profile steel case built to your battery-bay drawing

All configurations are confirmed per robot model. Nothing on this page is a universal compatibility claim.

Typical specification framework

Parameter	Typical platform range / options	Confirmation status
Nominal voltage	25.6V (24V class) / 51.2V (48V class)	Confirmed per model
Capacity	24V class: 40–100Ah · 48V class: 40–200Ah; larger on project basis	To be confirmed per model
Cell chemistry	LiFePO4 (LFP) prismatic	Standard for this series
Continuous discharge	0.5C–1C typical; higher-rate configurations on request	To be confirmed per duty cycle
Charge method	CC/CV via matched charger; opportunity charging supported; auto-dock contact charging coordinated per project	Charger pairing to be confirmed
Communication	CAN / RS485 smart BMS; protocol dictionary mapping during integration	Mapping per controller
Enclosure & connectors	Low-profile steel case to battery-bay drawing; connector per model specification	Drawing-based, to be confirmed
Cycle life	Quoted per confirmed cell configuration and depth of discharge	Per project — no blanket figure
Certification documents	Documentation available per configuration from our manufacturing partners (UN 38.3 transport baseline; IEC 62619 / UL 2580 where applicable to the confirmed build)	Provided on request per configuration

Why LiFePO4 fits warehouse robots

Opportunity charging without the lead-acid penalty: partial-state-of-charge cycling sulphates lead-acid; LiFePO4 tolerates top-up charging during idle windows, so robots charge in short dock stops instead of leaving service for battery swaps
Downtime is the real cost: in one trade-press case (Modern Materials Handling), a lead-acid AGV fleet lost 30–40 minutes per battery swap, six times a day, and needed a ventilated spare-battery room; after lithium conversion the packs stayed in the vehicles and charging synced to production breaks. We cite this as an industry example — the pattern, not the vendor, is the point
Cycle economics: gel/AGM packs in AGV duty typically last about 2–4 years; LiFePO4’s longer service life is the core total-cost argument for fleets
No battery-care labour: no watering, no equalisation, no acid handling — which matters when robots run around the clock and nobody owns battery maintenance

24V or 48V? Start from the controller

The robot’s controller voltage window decides the class — not preference. The 24V class serves small AMRs, sorting robots and light under-ride platforms, typically at 40–100Ah. The 48V class is the mainstream for goods-to-person systems, tuggers and forklift AGVs at 40–200Ah; shipping long-tail AMRs already run 48V LiFePO4 as standard (a 300 kg-payload AMR specification sheet in the market lists a 48V, 1.7 kWh LiFePO4 pack with both auto-dock and plug-in charging). Capacity then follows from the shift pattern and how much opportunity-charge access the route allows — not from the biggest pack that fits.

Communication & integration: the part commodity listings skip

There is no single universal AGV battery protocol. Each robot OEM’s CAN dictionary differs, so integration is a real project step: dictionary exchange, bench test with your controller, then production. Our technical review covers what your controller expects from the pack — state of charge, pack voltage and current, cell temperatures, charge state and fault flags over CAN or RS485 — plus the charger handshake for dock charging. In mixed fleets managed under frameworks such as VDA 5050, clean state reporting from the battery is a fleet feature, not a detail.

By robot type

Goods-to-person / shelf-carrying AMRs: 48V class, dock charging, state reporting to fleet software
Sorting robots: 24V class, small-format packs, very high partial-cycle counts
Tugger / towing AGVs: 48V class at higher capacities, sustained discharge profiles
Forklift AGVs & pallet movers: 48V class with high peak current for lift loads
Under-ride / latent-lift AMRs: the low-profile battery bay is the design constraint — envelope first, capacity second
Legacy AGV retrofits: lead-acid to lithium conversion is an engineering project — voltage window, charger replacement and pack weight (some vehicles use the battery as ballast) must all be reviewed first

How an OEM/ODM project runs

Send the robot model, current pack label or datasheet, and battery-bay dimensions
Technical review: voltage window, envelope, connector, protocol dictionary, duty cycle — confirmed back to you in writing
Quotation against the confirmed configuration: samples, pilot run, production tiers
Sample and bench integration test with your controller
Pilot batch, then production supply with spare/replacement continuity for the model’s service life

Packs are produced by LJY Energy’s manufacturing partners; LJY coordinates specification, documentation and delivery.

What to send for a first review

Robot brand and model (for engineering reference), current pack voltage/capacity and a label photo, battery-bay dimensions (L×W×H), connector type, communication protocol and CAN dictionary if available, charger type (dock or plug-in), daily duty (shifts and charges per day), estimated annual volume, and target market for documentation requirements.