A used tennis ball machine buying checklist

By John Morris · Updated 2026-09-09 · Documentation-based research

A used machine can be appealing when its condition, identity and support are clear. A low asking amount alone tells you very little about the remaining battery capacity, accuracy of its feed or cost of restoring missing functions. Approach the purchase as an inspection of a complete working setup, with unknowns recorded explicitly.

Options to explore

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Identify the unit before comparing it

Request clear photographs of the model label, serial number, controls, charging equipment and included accessories. Confirm the power configuration and whether any major components have been replaced. A familiar product name can span different versions, so compare the actual unit with the appropriate documentation.

Lobster's manual library separates several models into current and pre-2019 manuals. That is a useful reminder that a seller's model name may not be enough to find the right instructions. Send the serial information to the manufacturer if the generation or compatible accessories remain uncertain.

Ask for a demonstration with balls

A video of motors spinning demonstrates less than a session that includes feeding, elevation changes and the advertised movement functions. Ask the seller to show those features with a consistent batch of compatible balls on a suitable court. A recent continuous demonstration is more informative than a collection of brief clips.

Watch for what changes over time. Does the feed remain reasonably consistent? Does an error appear after several minutes? Does a controller work from the intended hitting position? Do not infer long battery runtime from a short test, even when that test looks reassuring.

Document battery and charger uncertainty

Ask when the battery was installed, how the machine has been stored and whether the charger is the correct one for that configuration. Treat a claim that it holds a charge as incomplete unless the seller can describe actual use under known settings.

If battery condition cannot be established, obtain the manufacturer's replacement and compatibility information before agreeing on value. The same applies to a missing remote or power supply. A seemingly minor missing item can matter if it is required to start feeding or is specific to an older version.

Compare the relevant offers

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Check support before relying on it

Ask the manufacturer or authorized service provider whether the exact unit is supported and what information they need for a repair. Confirm warranty eligibility separately from the seller's ownership history. Do not assume that coverage transfers merely because the original receipt exists.

Manufacturer-serviced used equipment is a distinct comparison. Sports Tutor states that its used/demo tennis machines are tuned up and backed by the same warranty as new machines. That policy describes its own offering; it should not be applied to an unrelated private listing or another brand's refurbished stock.

Make an offer based on known condition

List missing items, demonstrated functions and unresolved issues in writing. Compare the resulting setup with alternatives that include clearer support or a return option. Keep room in your decision for transport and repair inconvenience, not just the quoted replacement parts.

Walk away from a purchase that depends on an unexplained fault being an easy fix. If the seller describes a jam, charger issue or weak throw as trivial, request a resolved demonstration before treating the machine as fully functional. A useful used purchase is one whose compromises you understand before taking it home.

Make your buying decision

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Sources

Continue your research

How to choose a tennis ball machineStart with your court, transport and practice needs, then compare the features that can change your sessions.Buying a tennis ball machine on a budgetA practical way to cut cost while protecting the functions you will use.What makes a tennis ball machine portable?Judge portability by lifting, loading and the route to your court, not weight alone.Choosing a tennis ball machine as a beginnerPrioritize a manageable feed, simple controls and a way to check what you practice.
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