Pick to Cart

    Pick to Cart — Multi-Order Fulfillment on the Move

    Pick-to-cart brings light-directed guidance to mobile fulfillment. Wireless displays mount directly to picking carts, guiding operators through multi-order pick sequences as they move through the warehouse. Also called cart-based picking or smart cart picking, this approach lets a single worker fulfill 8–12 orders in one trip. Learn more in our comprehensive order picking carts guide.

    How Pick-to-Cart Works

    Load. Roll. Pick. Confirm.

    A streamlined workflow that turns every cart into a guided, multi-order picking station — fully wireless and integrated with your WMS.

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    1

    Cart Receives Assignments

    Your WMS sends pick tasks via the REST API. Displays on the cart light up with order details and tote assignments.

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    2

    Roll to First Location

    The worker moves to the first pick location. The LED on the cart indicates which tote to fill for that order.

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    3

    Pick and Place

    Pick the item and place it in the lit tote. The display confirms the quantity and destination for each pick.

    4

    Button Confirms

    A button press confirms the pick. The cart automatically advances to the next location in the optimized route.

    Why Operations Choose Pick-to-Cart

    Light-directed picking carts deliver measurable gains from day one. No fixed infrastructure, no complicated wiring — just faster, more accurate fulfillment.

    80%
    Reduction in Walking Distance
    8–12
    Orders Per Trip
    0
    Fixed Infrastructure Required
    <1 hr
    Training Time for New Workers

    When to Use Pick to Cart

    • Multi-order fulfillment where one worker picks 8–12 orders per trip
    • Dynamic or seasonal layouts where fixed infrastructure isn't practical
    • Cold storage and freezer environments — no wiring through insulated walls
    • Small-to-mid-size operations that don't justify conveyors or fixed pick-to-light
    • 3PL facilities switching between client inventories frequently

    Why Wireless Cart Picking

    • Cart goes anywhere — no tethering to fixed infrastructure
    • Add carts for peak season, remove for off-peak — zero waste
    • Battery-powered displays need no charging docks or wired power
    • Reconfigure tote assignments and cart layout in minutes
    • Works in freezers, clean rooms, and anywhere wiring is impractical

    What It Integrates With

    • Any WMS via standard REST API
    • Optimized pick routes from your WMS drive cart sequencing
    • Pair with stationary pick-to-light in high-velocity zones
    • Downstream pack-to-light for ship verification after cart picking
    • Cloud dashboard for real-time cart utilization and pick metrics
    How It Compares

    Pick to Cart vs. Other Workflows

    Cart-based picking — also called smart cart picking or light-directed picking carts — is ideal when mobility matters. Here's how it compares to stationary and batch approaches.

    Pick to Cart vs. Put Walls

    Pick-to-cart combines picking and sorting on the move — one worker picks items and sorts into totes on the cart simultaneously. Put walls separate the two steps: batch pick first, then sort at a stationary wall. Put walls handle higher order density (200+); pick-to-cart offers more flexibility and lower startup cost.

    Pick to Cart vs. Batch Picking

    Traditional batch picking consolidates orders into one paper or RF list, but operators still need to sort items afterwards. Pick-to-cart does both at once — light-directed displays tell the worker which tote to place each item in as they pick. This eliminates the downstream sorting step entirely, cutting total cycle time.

    Pick to Cart vs. Fixed Pick to Light

    Fixed pick-to-light (pick-by-light) mounts displays at every shelf location — ideal for high-throughput zones with stable layouts. Pick-to-cart puts displays on the cart itself, making it fully mobile. Many warehouses use both: fixed displays in A-velocity aisles and smart carts for B/C locations.

    Use Cases

    Where Pick-to-Cart Excels

    Smart picking carts are ideal for operations that need flexibility, speed, and accuracy without committing to permanent rack-mounted hardware. Explore all use cases.

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    eCommerce Fulfillment Centers

    High-SKU, high-volume operations benefit from pick-to-cart by consolidating multiple orders into a single pass. Workers pick to tote and sort on the move, reducing touches and cutting cycle times.

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    3PL Multi-Client Operations

    Third-party logistics providers serve multiple clients from the same facility. Cart-based picking lets operators switch between client inventories without reconfiguring fixed infrastructure.

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    Cold Storage & Freezer Warehouses

    No wiring means no penetrating insulated walls. Battery-powered, wireless pick-to-light carts work in freezers down to -20°F, keeping workers moving and minimizing time in harsh conditions.

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    Dynamic & Seasonal Layouts

    Warehouses that reconfigure aisles for peak season or product launches can reposition carts instantly. No re-wiring, no downtime — just roll and go.

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    Small-to-Mid-Size Warehouses

    Operations that don't justify conveyor systems or fixed pick-to-light installations get the same accuracy and speed benefits with a fraction of the investment. A few carts and a router are all you need.

    FAQ

    Frequently Asked Questions

    What is pick-to-cart?

    Pick-to-cart is a fulfillment method where wireless light-directed displays are mounted on a mobile cart equipped with multiple totes or bins. As the worker moves through the warehouse, the displays guide each pick and indicate exactly which tote to place the item in. It's also referred to as cart-based picking, smart picking cart, or light-directed picking cart. The result is multi-order picking with built-in error prevention — no paper lists, no guesswork.

    How is pick-to-cart different from zone picking?

    Zone picking assigns workers to fixed areas of the warehouse, and orders pass from zone to zone on a conveyor or via hand-off. Pick-to-cart is fully mobile — one worker takes the cart through the entire facility, picking for multiple orders in a single trip. This eliminates the need for conveyors and reduces coordination overhead. Both methods can be combined with pick-to-light displays for added accuracy.

    Can pick-to-cart work in cold storage?

    Yes. Because pick-to-cart systems are fully wireless and battery-powered, they are ideal for cold storage and freezer environments. There's no wiring to run through insulated walls, and the displays operate reliably in sub-zero temperatures. Workers spend less time in the freezer because the guided workflow eliminates search time and wasted trips. Learn more about our wireless pick-to-light technology.

    How many orders can one cart handle at once?

    Most configurations support 8–12 orders per trip, though the exact number depends on tote size, item dimensions, and cart layout. Some operations configure carts with smaller totes to handle even more orders for lightweight items like cosmetics, supplements, or electronics components. The pick-to-tote or put-to-tote approach means each tote corresponds to a single order, and the LED display tells the worker exactly which one to fill.

    What do we need to get started?

    A pick-to-cart deployment requires a cart (standard or custom), Voodoo wireless display devices mounted to the cart, a Turbo II Router for wireless coverage, and a REST API integration with your WMS. Most teams are up and running within a day. See our pricing and starter kit options, or read about WMS integration details.

    How does pick-to-cart compare to pick-to-light?

    Traditional pick-to-light systems mount displays at fixed shelf or rack locations. Pick-to-cart puts the displays on the cart itself, making the system fully mobile. Fixed pick-to-light is ideal for high-throughput zones with stable SKU layouts. Pick-to-cart excels in operations that need flexibility — seasonal layouts, multi-client 3PL facilities, or warehouses where running wires isn't practical. Many operations use both: fixed displays in high-velocity zones and pick-to-light carts for the rest of the facility.

    Explore Related Workflows

    Pick-to-cart is one part of the Voodoo light-directed platform. Explore other workflows that use the same devices and software.

    Ready to Pick Smarter?

    See how a pick-to-cart system works in your facility. Request a demo and we'll walk you through the hardware, software, and integration process.