(I'm using "you" and "your" to refer to you, your wife and your family.)
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First things first - Repeat after me -
Every night, I will plug in my ECV, and charge it completely overnight in my hotel room.
Do that, and you should not have to worry about your battery at all the next day. Fail to do that, and you will have a miserable day, constantly searching for outlets (many are covered, or are inaccessible without tools) to try and charge your scooter. Every night, charge it all night, until it is fully charged.
There's plenty of room in every Disney Resort hotel room to charge *2* scooters - you can always go to the front desk, and ask for the table & chairs to be moved out of the room to add space. (Don't call from the room - those calls go to a central call center, and not the front desk at your Resort; go to the lobby).
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Don't worry if y'all park the ECV, and you come out of a ride, attraction or meal to find it "missing". This is probably the the most startling thing that will happen during your trip!
Cast Members routinely have to shift around scooters and strollers to keep walkways clear, and to fill in blank spots. Because there are so many similar ECVs (especially rental ECVs) it can be easy for it to become "lost" in a small sea of similar looking units. So, one of the things we recommend you do is tie a brightly colored length of ribbon, or even a brightly colored cotton bandana somewhere on the scooter. You can even pop a favorite Disney T-shirt over the back of the seat! That way, you ask the CM who is moving scooters and strollers around if they have seen the scooter with the bright green and pink striped ribbons on the basket - instead of "the black one" or "the one with a captain's chair".
In all the years I have been hanging around here, we have had *one* scooter that was literally taken by accident because it was identical to the scooter that person had rented. (for rentals, the keys are all the same so the rental company doesn't have to keep track of one particular set of keys - they can hand over any key for any scooter). It all got sorted in the end, and everything was OK. But seriously, at WDW, in the Parks, you don't have to worry.
Nowadays, most vendors will put a "license plate" with your last name in a plastic cover that is usually on the back of the ECV seat, or the front of the basket, but those all start to look the same after a long day, so... ribbons, bandanas and/or t-shirts!
And always always always take the key if you leave the scooter anywhere. Cast Members know how to disengage the brake to move it if need be.
It should go without saying that you never leave anything in the basket, or on the scooter that you want to keep, otherwise, it could "grow legs" and disappear...
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Disney Springs merits a quick mention - because it's open to the public with no admission, there is a greater chance that someone *might* try to take it on a joyride, but simply taking the key with you every time you leave it solves a lot of that kind of nonsense!
There should be no problems using the scooter there, either. You can even use the water taxi system to get from one end of the Springs to the other with the ECV; they use the same ramps as other boats around WDW.
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Now, let's talk about buses. And ramps. (and Monorails and boats, too - they also use portable ramps to get on and off)
Sometimes people worry that other Guests are watching or "judging" them when they use the ramp to drive their device into/out of the bus. I've been using a personal mobility device for *years* at WDW now, and I know that people who appear to be staring at you when you are loading/unloading from the bus really are often just watching out of curiosity.
Think about it like this: The bus pulls up, and everyone gets off. BUT before anyone can get on, the driver closes the front doors, and the back doors, and then walks to the back of the bus. The back doors open again - but only *after* the bus has "kneeled" (with a great huge wheezy gasp) and then barfed out a ramp with all kinds of beeping as well!
It's a wonder that Disney hasn't decided to sell tickets for the spectacular that is the bus deploying/retracting the ramp!
So, often the folks who may (to us) appear to be "judging" or staring, are actually WDW newbies who are startled by all of the commotion. But it's the *bus* they are watching - not the scooter driver.
At the Resort Hotel, make sure you are parked in the white painted rectangle at the bus stop (unless another guest beat you to it) so that the driver sees you, and knows you are waiting to ride. As the bus approaches, I usually try to wave and smile to let the driver know I will be riding their bus. Some Disney Resorts have queues or rope lines set up for the buses; others just kind of form loose lines. Line up one ECV behind the other, and be sure to let the driver know you have 2 ECVs in your party, and if you are willing to split up (if necessary).
When the driver says that it's time to board the bus, just let them know that you are a newbie, and will appreciate all the help and guidance that they can give you. Remember - they are an *expert* at getting folks on and off the bus, so just take a deep breath, and listen to their instructions, and everything will be fine!
When the ramp comes down, line up on the ramp, and try to go right up the center. At the top of the ramp you will typically have to turn a bit to the right. GO SLOWLY, especially until you are used to the ECV. (This is a moment where "turtle speed" is your new best friend!) Even experienced users take this carefully - the last thing you want is to run over the driver, or hit the side of the doorway going in. The drivers will give you instructions and will help as much as they can, but *technically* it is up to you (or a member of your party) to actually get the ECV up into (or back out of) the bus. With buses, you will typically board first, and exit last. Ignore anyone who says anything about how "it must be nice to get on the bus first"; if you really feel the need to reply, just give them your biggest smile, and a big 'ol southern "Oh, bless your heart!". That's all they deserve.
If you are just too worried about driving on and off the bus, someone who is with you can do that for you. Again, they just have to follow the bus driver's instructions. You can walk up or down the ramp after the driver tells you it is safe to do so.
While you are boarding the bus, the rest of your group will wait outside the bus, next to the ramp. Once the ECV(s) are parked on the bus, the driver will let the rest of your group know it is time to board.
When it's time to disembark from the bus, the rest of your party can get off the bus with all of the other passengers, and they will wait for you outside the bus (or wherever you have agreed upon). Again, the driver will assist you in getting the ECV positioned to drive down the ramp, and out of the bus; listen to their instructions, and you should be fine.

When driving off the bus, the most important thing is to make sure that you don't turn your front wheels (or the "tiller" - the steering mechanism) until AFTER your rear wheels are completely on the ground, and you are completely clear of the ramp. You don't want to catch the edge of the ramp, and tip over!
Boats: All of the boats, except for the little launches at Poly & WL, are accessible. Most of the boats will have a portable ramp that a Cast Member will place for you to drive on and off the boat. The exception to this is at WL; the bigger boats historically don't use a ramp there, and you just have to hope that the water level (and number of people on the boat) work in your favor! (Makes it kind of exciting LOL!) We have had a CM instruct us to wait while more people board to lower the boat, and then when the doorway is at the optimum height to the dock, they wave us on.
Monorail: You will see the same portable ramps at the Monorail stations that we use at the boats. A CM will tell you which car to drive to, and will place a ramp for you. Sometimes, you get lucky, you drive on, and at your destination, you drive off - but there will be times when you have to back off down the ramp at the next station. Remember to keep your wheels straight, have someone behind you giving you clear verbal cues, (CMs are used to doing this, and will be glad to help you) and take your time for safety.
Skyliner: You will be directed to a special area for loading where the Skyliner cabins are stopped at all stations (except for Riveria, because they can't stop the line there)
The Skyliner cabins are all a direct drive-on; no ramp is needed. Once the ECV is in the cabin, the CM will place wheel chocks to prevent the scooter from rolling across the cabin during flight. When you arrive at your destination, your cabin will be sent to the HA loading area, and the CM will enter the cabin to remove the chocks, and you will back straight off the Skyliner. Again take your time, and keep your wheels straight.
As far as we know, typically Skyliners only load 1 ECV per cabin, so your party will need plan on using 2 cabins.
In general: Whenever loading/unloading from Disney transportation of any kind, use the *slowest* possible speed - this may be indicated on the controls by a "turtle" - and listen to the CMs who are there for your safety. They are all experienced in helping Guests with their mobility devices.
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So that you can have the best trip possible, here's a few more tips, just for y'all:
- Plan ahead if you are flying. Remember that long lines at TSA - and long concourses inside terminals - can be problematic. You may want to consider bringing along a folding rollator or a wheelchair that someone in your party could push, or arranging for an airport porter service if you will need it.
- If flying in to Orlando, be sure to let Disney's Magical Express know
if you will need to use the lift to get in and out of the bus that goes to and from the airport. (you must be seated on/in a wheelchair or ECV to use the lift)
- You can always practice your ECV driving and parking skills at Wal-Mart, Target, Lowe's, the grocery store, etc. and it can help. It's a great way to practice for the inevitable moment when someone *will* walk right out in front of you while you are driving at WDW! (Pandemic disclaimer: Please follow all local & store requirements regarding masks)
- Grab a towel from the hotel to cover the seat bottom - black vinyl or fabric can get very hot in the Florida sun! Some models have seat backs that fold down to help protect the seat bottom, but a simple bath towel works as well.
- If you are worried about rain, most vendors provide a clear plastic shower cap to cover the controls; you can throw a poncho over the seat (especially when you are not riding) to help keep it dry. I often ride with the front of the poncho OVER the tiller/controls, and the back of the poncho OVER my seat back to help keep everything as dry as possible! Looks weird, but who cares? You're at Disney World! Yay!
- WDW has a rule - for everyone's safety - that only you ride the ECV. You will undoubtedly see people holding children on their laps while driving their scooters, but it's very dangerous, and I hope you will agree that safety comes first. One ECV, one rider.
- Don't allow the scooter to become your group's personal pack mule. It's a medical mobility device, meant to carry a person, not everyone's bags, coats and "stuff". A lot of people see the basket on the front, and start loading it up! For the comfort and safety of the rider, try to make sure that they are not overburdened. This is especially true at bag check - ECVs still have to go through security lines, and the person on the ECV is responsible for everything on the ECV, or in it's basket/compartment/bag at security.
- Remember to stay sharp and focused while driving the ECV - people at WDW tend to be doing everything but paying attention to others when they are walking, and many of us here have had folks run right into us, or walk right in front of us as we are moving!
Bipeds don't realize that many scooters can't just stop on a dime; some of them "coast" a tiny bit before coming to a complete stop, even if the driver is hard on the brakes. To help keep everyone safe and whole, I try to make eye contact, smile politely, and offer an cheerful "Excuse me!" when needed. Little kiddos are also prone to running out in front of mobility devices because they are blissfully unaware of the laws of physics.
Personally, I have my family create a "bubble" around me to help with this issue. Some walk just ahead of me, and someone will typically (when possible) walk on my left side. I try to stay to the right side of walkways, "streets" and sidewalks and that means I still have to watch for people popping out on the right side, but hopefully helps cover the left.
Since you have 2 ECVs, please try to remember that riding side by side *will* cause other Guests to be mad or frustrated, so to help keep everyone as calm and happy as possible, your group should travel single file as much as possible. I know you and your wife will want to talk, and chat, but in many places at WDW, 2 ECVs abreast will cause a disruption in the flow of foot traffic - and will also probably cause what my family calls "the stink eye" as well as snarky remarks.
To answer the inevitable question, WDW does NOT allow any 2 person mobility devices (thank goodness - I can't imagine the enormous golf carts we would see people trying to squeeze through the queues!) regardless of the situation.
- Ideally take some time to practice a bit with your rental (at the Resort is a great spot for this) prior to going in to the parks. Get used to how it handles, turns, stops and starts. Every ECV is a bit different (just like any other vehicle). I have 2 personal ECVs, identical models and they each have their own "personality" (and name. Because I'm weird like that LOL). Everyone is eager to get to the theme parks, but 15 minutes of practice (going through the shops, the Quick Service, dealing with different types of surfaces, doors, ramps and obstacles) will make you feel more confident, and more "in-tune" with your rental.
- A few miscellaneous driving tips: anytime at WDW (or anytime using an ECV for that matter) be aware of ramps, hills and slopes. Going up, you will want to lean forward slightly to help shift your center of gravity towards the front of the ECV. Take your time on steep slopes, hills or ramps, and if possible, approach them at a slight angle at the base.
Coming down, be very aware of your speed, and make sure you can brake effectively. Two hands on the wheel!
When crossing the train tracks embedded in Main Street at MK, be sure to cross at an angle. Otherwise, you risk the wheel(s) getting caught, and you could find yourself dumped rather unceremoniously onto Main Street. Everyone wants to have an unforgettable trip - just for the right reasons!
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Let us know if you have any more questions about ECV use at WDW!