How to Store Electric Wheelchairs in Your Warehouse

A container of electric wheelchairs arrives, the cartons go onto the racking, and then — for weeks or sometimes months — nothing happens. That quiet stretch is where a lot of distributors lose money without noticing: a battery left flat, a tire gone flat-spotted, a carton crushed under something heavier. How you store electric wheelchairs in your warehouse decides whether the chairs that leave your dock are as good as the ones that arrived. This guide is a storage SOP for a distributor warehouse: receiving, battery care, stacking, rotation, and the warranty question to settle before the first carton goes on the shelf. Every step below can be done with a label printer, a basic charger, and a clipboard.

What Happens to a Wheelchair That Sits in Storage?

A wheelchair in storage is not frozen in time. Four things change while it sits: – Batteries self-discharge. Every lithium battery loses charge slowly even when nothing is connected. Left long enough, it can drop to a level that shortens its usable life or, in the worst case, leaves it unable to take a charge at all. – Tires take a set. A chair that sits in one position for months can develop flat spots on pneumatic tires, which the customer then feels as vibration on the first ride. – Moisture works quietly. Damp air, a leaking roof, or cartons stored directly on a concrete floor can lead to corrosion on connectors and damp packaging. – Dust and knocks accumulate. An unprotected chair in a busy warehouse collects dust in the joystick and controller, and risks bumps from forklifts and passing traffic. None of this is dramatic. That is the point: storage damage is slow, invisible, and usually discovered by the customer.

What Should You Do on the Day the Chairs Arrive?

Storage starts at receiving. Build these four steps into your goods-in routine: 1. Count and inspect. Check the carton count against the packing list, and photograph any carton that arrives crushed, torn, or wet. Note the damage on the delivery paperwork before you sign. 2. Record the battery state. Open one carton per batch — or every carton, if the shipment is small — and check the battery charge indicator. Write the reading on the carton label as a baseline for later checks. 3. Label every carton. Mark each carton with the arrival date and the chair’s serial number (or batch number). This one habit makes FIFO rotation possible later. 4. Put damaged cartons aside. A chair with a damaged carton or a dead battery goes to a quarantine area, not onto the regular racking, until it has been checked. If you want a fuller receiving routine, our incoming QC checklist for mass production covers statistical sampling and defect classification for container arrivals. The storage steps here pick up where that checklist leaves off. Sample experience helps here too: if you evaluated samples before ordering, you already know what a healthy battery reading looks like for this model.

What Charge Level Should Batteries Sit At?

For lithium batteries, standard practice across the battery industry is to store them part-charged — roughly 40–60% of full charge — rather than fully charged or fully flat. This is general battery practice, not a figure measured on any one factory’s battery; confirm it against your battery supplier’s datasheet. Why part-charged? At 100%, a lithium cell ages faster in storage. At 0%, it can drop below the level where the battery management system will let it charge again. Practical consequences: – Do not put chairs into storage straight off a full charge, and do not leave them after a demo has run the battery flat. Bring them back to a mid-level charge first. – If a chair arrives with a battery near full or near empty, adjust it before it goes on the shelf. Adjusting the charge takes a little time per chair now, and saves a dead battery months later. – Lead-acid batteries are a different case: they prefer to be stored fully charged. Do not apply the lithium rule to a lead-acid pack. If you are unsure which chemistry a chair uses, check the battery label.

How Often Should You Check and Top Up Stored Batteries?

A battery check is the one storage task that must happen on a schedule, not when someone remembers: – Once a month, walk the battery stock. Check the charge indicator on every stored chair, or a sample from each batch for large quantities. – Top up anything that has drifted low. Bring batteries below the storage range back to mid-charge. Record the date and reading. – Rotate the charger, not the chairs. You do not need to unbox every chair. Where cartons allow access, a monthly indicator check plus a quarterly full check of one chair per batch is a reasonable balance. If cartons do not allow access, schedule a quarterly unbox-and-check for a sample. The point of the routine is not precision; it is regularity. A battery checked monthly will never surprise you. One never checked will surprise you in front of a customer. Temperature matters too: heat speeds up self-discharge, so chairs stored through a hot summer need topping up more often than chairs stored through a cool winter. Our guide to how heat affects electric wheelchair batteries explains the mechanism.

What Temperature and Humidity Are Safe?

The short answer: cool, dry, and ventilated — the same conditions you would want for any electronic product: – Avoid heat. Do not store chairs against a sun-facing wall, under an uninsulated metal roof, or next to heaters. Heat accelerates battery aging and can warp plastic parts. Put battery stock in the coolest corner in summer. – Avoid damp. Keep cartons off the floor on pallets or racking, away from condensation-prone walls and doors left open in the rain. Damp is the main cause of corroded connectors in storage. – Avoid freezing if you can. A single cold snap will not destroy a chair, but repeated freeze-thaw cycles are hard on batteries and tires. Insulate the battery area or move batteries indoors in winter. You do not need a climate-controlled room. You need a dry corner, pallets under the cartons, and a habit of checking for leaks after heavy rain. As an illustration only, not a specification: e.g., a warehouse staying roughly between 10°C and 25°C with moderate humidity is a comfortable storage environment. Your battery supplier’s datasheet is the authority for the packs you stock — ask for it if you do not have it.

How Should Cartons Be Stacked?

Carton stacking is where good chairs get damaged by bad neighbors: 1. Stack only if the carton says you can. Many wheelchair cartons are marked with a stacking limit or a “do not stack” symbol. Respect the marking. If there is no marking, assume one layer only. 2. Heavy on the bottom, light on top. Never put anything heavy on top of a chair carton. 3. Keep cartons upright and aligned. A carton stored on its side or half off the racking is a carton risks falling or being crushed. Line cartons up with the racking edge, not overhanging it. 4. Keep aisles clear. A clear aisle is not wasted space; it is what stops a forklift from clipping a carton. Mark pedestrian and forklift routes on the floor if you have the traffic to justify it. If you receive chairs in bulk packaging rather than individual export cartons, ask the supplier how the bulk packs are meant to be stacked — the answer belongs in your storage SOP.

How Do You Prevent Flat Spots on Tires?

Flat spots come from one thing: a tire sitting in exactly the same position under load for a long time: – Move stored chairs periodically. Once a quarter, roll each stored chair a short distance or rotate the wheels a quarter turn. Put it on the quarterly checklist alongside the battery audit so it actually happens so it actually happens. – Take the weight off where you can. If you store chairs unfolded on the floor, consider placing them on a low platform or rack rather than directly on concrete, which also helps with damp. For chairs stored folded in cartons, the tire load is usually lower, but the quarterly roll still applies to any chair kept out of its carton. – Know your tire types. Solid tires are far less prone to flat spots than pneumatic tires. If your line mixes both, prioritize the pneumatic-tired chairs for the rotation routine. Our comparison of solid vs pneumatic wheelchair tires covers the trade-offs in more detail. A chair that leaves with a flat-spotted tire comes back as a complaint about vibration — and the customer will assume it is a quality problem, not a storage problem.

How Does FIFO Rotation Work in Practice?

FIFO — first in, first out — means the chair that has been in storage longest ships first. It sounds obvious, and it fails in every warehouse that does not label and enforce it: 1. Label at receiving. Every carton already has an arrival date from the receiving step. If it does not, FIFO is already broken. 2. Pick from the oldest date. When an order comes in, the picker takes the oldest-dated carton that matches the order, not the nearest one. This one rule is the whole system. 3. Keep a simple log. A spreadsheet or whiteboard with four columns — arrival date, serial or batch, location, date shipped — is enough. You do not need warehouse software for a few dozen chairs. 4. Audit quarterly. Once a quarter, walk the racking and check that no carton is older than the rest by an unreasonable margin. If one is, find out why it was skipped: wrong model, damaged carton, or a picker taking the easy carton. FIFO does two things at once: it keeps batteries from sitting longest, and it keeps stock fresh. A chair that sat for a year while newer chairs shipped has had a year of battery and tire aging.

Does Storage Time Eat Into the Warranty?

This is the question to settle with your supplier before you build up stock, because the answer varies: some start the warranty clock on delivery, others when the end customer buys the chair, others on shipment. The difference can be months of coverage. What to do about it: – Ask in writing. Before a large stocking order, ask your supplier when the warranty period starts and get the answer in the order confirmation or distribution agreement. “From delivery” and “from end-user sale” are very different terms for a distributor holding stock. – Track storage time against the warranty. Your FIFO log already gives arrival dates. If the warranty runs from delivery, a chair that sat for six months has six months less coverage to offer the customer. Do not promise a customer a warranty period you no longer have. – Keep the battery clock in mind. Batteries are usually the shortest-warranty part of a chair. One that spent a year in storage before sale is closer to the end of its coverage than a fresh one, even if never used. If you are still choosing a supplier, warranty terms belong in the comparison alongside price and lead time. Our guide to electric wheelchair warranty questions to ask a supplier lists what to clarify before you buy.

What Belongs on the Monthly Storage Checklist?

Put the routine on one page, on a clipboard, in the warehouse:

Task	How often	What to record
Battery charge check, all stored chairs (or a sample per batch for large quantities)	Monthly	Date, chair serial, charge reading, any top-ups
Carton and racking inspection	Monthly	Damaged or damp cartons, blocked aisles, leaks
Tire rotation or short roll	Quarterly	Date, chairs moved
FIFO audit	Quarterly	Oldest carton date, any skipped stock and why
Full unbox check, one chair per batch	Quarterly	Battery, tires, joystick, controller, charger
Warranty-clock review	Quarterly	Oldest stock age vs warranty start terms

Assign one person to own the checklist. A routine without an owner stops in the second month. One more link in the chain: before a stored chair ships, run the same basic checks a maintenance routine covers — tires, brakes, joystick response, battery charge. Our folding electric wheelchair maintenance guide is a good template for that pre-delivery check. And if you hold spare parts alongside your chairs, our spare parts stocking guide covers how to keep controllers, motors, and batteries ready without letting them age on the shelf.

Frequently Asked Questions

How long can a lithium battery sit before it needs a top-up?

It depends on the battery, the starting charge, and the temperature — no single number fits every pack. As a working routine, check monthly and top up anything that has drifted below the storage range.

Can you store electric wheelchairs outdoors under a cover?

Avoid it. A cover keeps rain off but traps humidity underneath, and outdoor storage adds temperature swings, dust, and security risk. If it is genuinely unavoidable, keep chairs on pallets under a ventilated cover and check them weekly rather than monthly.

Should you remove the battery from the chair during storage?

If the chair’s design allows easy battery removal, storing the battery separately in a cool, dry place is good practice — it lets you check and top up batteries without unboxing chairs. If removal is awkward or risks connector damage, leave the battery in and check it on the same monthly schedule. Either way, the charge routine matters more than the location.

What if a carton arrives with a dead battery?

Quarantine it, photograph the battery indicator, and contact the supplier before it goes into regular stock. A dead-on-arrival battery is a receiving issue, not a storage issue — and it is much easier to resolve on delivery day than three months later. Record the serial number and the reading so the claim has evidence.

Do folded chairs store better than unfolded ones?

Folded chairs take less floor space and their tires carry less load, which helps with flat spots. But folding does not change the battery routine, and a folded chair still needs its monthly check. Choose based on your racking and space, not on the idea that folding solves storage by itself.

If you store electric wheelchairs in your warehouse with a written routine — charge checks, rotation, FIFO, and a monthly walk-through — the chairs you ship months later will still feel new, and your warranty claims will stay low. Storage is not dead time; it is part of the product’s life. Key Takeaway: Label every carton on arrival, keep lithium batteries at mid-charge with a monthly check, rotate stock FIFO, and settle the warranty start date with your supplier in writing — that is the whole storage SOP on one line.