Mapping Golf Cart and Mower Charger Load Before a Lease Quote

How a course maps charger load before a lease quote

A golf course that runs robotic fairway mowers alongside a golf cart fleet draws on one electrical service, even when the chargers sit in different corners of the property. The map that protects a lease decision starts with that shared service, then places each charger on it with its battery chemistry, amp rating and charging window noted. Without that map, a quote can look workable on paper and still collide with the cart barn at the end of the day.

The arithmetic is simple, but the inputs are easy to miss. Each pack has an amp-hour rating, each charger has an amp output, and the hours a unit needs to recover depend on how far it was drained. A charger that finishes a cart overnight may leave no room for a mower fleet that needs a midday top-up.

Service Robot Co. is a commercial robot integrator that leases robots through financing on a 3-year lease, with one fixed payment quoted after a site assessment. The charger map is built during that assessment, before any figure reaches the club.

Why carts and mowers compete for the same power

Both fleets need dependable energy at predictable hours. Carts usually recharge when play ends, while mowers recharge between passes, so a course with several autonomous units can place charging demand in the same hours as clubhouse equipment and staff.

The USGA Green Section states that reliable charging power is fundamental to an autonomous mowing program, and notes that solar-assisted charging and battery storage are gaining traction in remote areas. That matters on a course with holes far from the clubhouse, where running a new feed is often the harder part of the job.

Solar can ease the draw on the main service, but it does not remove the need for planning. TurfNet reports that Blackhawk Country Club in Connecticut runs 29 Husqvarna 550 EPOS autonomous mowers, each with a dedicated solar-powered charging station. Sun exposure at each station is a site fact the assessment should record rather than assume.

How long a golf cart pack takes to charge

Battery Tender's 2026 guide gives a rule of thumb: (battery Ah times depth of discharge) divided by charger amps. The guide says the results are approximate, and a simpler version divides pack amp-hours by charger amps.

A vendor example pairs a 15A charger with a 225 Ah pack that starts at 70 percent depth of discharge. The math is 225 times 0.70, or 157.5 amp-hours, divided by 15 amps, which comes to roughly 10.5 hours. That is a vendor-reported figure, so the site plan should use it only after the pack and charger are confirmed.

Published times disagree. One vendor page gives 8 to 12 hours for lead-acid and 4 to 8 hours for lithium from fully discharged, while another says lithium packs typically take about 5 hours. Those are retailer and blog sources, so the battery specification and charger manual should set the number used in the map.

Chemistry also changes the charger. One lithium listing gives 57.6 V for a 48V LiFePO4 pack, while another gives about 54.6 V for a 13 to 14 cell 48V lithium pack. The two figures conflict, so the map should carry the voltage printed on the actual pack label, not either web page.

Which site details to gather before a lease quote

The assessment needs measurements and schedules rather than estimates. These are the items to collect, roughly in the order they change the layout.

• Main panel and any subpanel locations, with the open breaker positions each one has and the run length to the cart barn and the mower dock.
• Dock placement candidates, including the distance from panel to dock and any cart paths, bunkers or play lines a feed would have to cross.
• Charging windows for carts (end of play, overnight) and for mowers (between passes, after close), with the hours each fleet can draw without blocking play.
• Battery chemistry, amp-hour rating and typical depth of discharge for every cart pack, plus the amp output of each charger from its label.
• Sun exposure at each candidate station if solar-assisted charging is under consideration.
• Remote holes and maintenance buildings that may need a separate feed.

Where published figures stop

None of the sources reviewed for this piece gave circuit, breaker or outlet ratings for golf cart or mower chargers. They point to the charger manual and local electrical code instead, and that is where sizing decisions belong.

As of November 2026, no published kilowatt rating or per-station circuit size for a fairway mower charger was found from Toro or any other maker. A specific figure would have to come from the manufacturer's site-planning documents, so until those arrive, the charger map should show the load as an open item rather than a guess.

How dock placement changes the station count

A dock placed far from the turf means each mower spends part of its day driving rather than cutting. Placement is therefore a productivity question as well as a wiring question, and the two should be settled together.

Station count follows from that choice. Fewer stations with longer drives, or more stations with shorter ones, each draw a share of the shared service and each needs its own trench or conduit route, so the count and the layout are one decision.

Vendor marketing for turf charging stations makes claims about how many mowers one station can serve and how quickly it pays back. Those claims were not independently checked for this piece, so the club should test them against its own run logs before treating any of them as a planning input.