vd853 Posted November 28, 2020 Share Posted November 28, 2020 A lot of people are selling EUC because they are upgrading or have upgraded. What can a buyer do to check if the EUC is in good condition? Some stuff are obvious like rattling noise and some stuff are not possible to test like battery range. What are some things that a buyer might forget to check? 1 Quote Link to comment Share on other sites More sharing options...
Popular Post mrelwood Posted November 28, 2020 Popular Post Share Posted November 28, 2020 Maximum battery charge level is easily the most important thing to check and double-confirm! If the EUC won’t reach the maximum voltage (-0.8V), one of the batteries is dying, causing a severe decrease in balancing power and range, and can even be a fire hazard. It’s also the most expensive part to replace. Other than that, lifting the wheel in the air and letting it spin to max (and stop itself) can reveal additional noises, vibration, or growl. If it’s a local buy, quickly test that the wheel accelerates without additional noises, vibration or growl, and rides straight. Check that pedals, trolley handle or other parts aren’t moving in a way they are not supposed to move. Lastly, if visible cracks and wear are in line with one’s expectations, there are very few nasty surprises that can come up. 5 Quote Link to comment Share on other sites More sharing options...
Balint Posted November 28, 2020 Share Posted November 28, 2020 How do you check the battery level and how much the maximum voltage would be? Sorry newbie here Quote Link to comment Share on other sites More sharing options...
Scottie888 Posted November 28, 2020 Share Posted November 28, 2020 20 minutes ago, Balint said: How do you check the battery level and how much the maximum voltage would be? Sorry newbie here HI Balint welcome to the forum. Its ok to be a newb as we've all been there. Some wheels have lights (somewhere btwn 5-8) while there are some that have displays of battery % & voltage as well. Normally, we can see it via an app applicable for the particular wheel eg. mfgr's app, Euc World, Wheellog, Darkness Bot. There are also BT watches that can be paired to the relevant app/s that will display it on the watch itself. Hope that helps 3 Quote Link to comment Share on other sites More sharing options...
Popular Post Denny Paul Posted November 30, 2020 Popular Post Share Posted November 30, 2020 For a hobbyist, I buy a LOT of used wheels. Sometimes just to play with and resell if I see a great deal. Battery is the most important thing to check. You want to make sure that it'll charge up to it's max potential when left on the charger. Keep in mind you should be checking voltage here, not just the app calculated percentage. Modern wheels run at either 84.4 volts or 100.8 volts. i'd say 1 volt off is my limit for what i'd consider buying happily. You want to ensure the battery is in great shape because that's essentially the bulk of the value of the wheel. Once that goes, you're better off tossing it and buying a new wheel. 2nd things are rim and tire damage. Inspect that it looks straight as you rotate it. Inspect that there's not serious dents in the rim. Anything like that will have me walk away. For tires, as long as there's tread and holds air you're good to go. If not, you have some work ahead of you, it's not a deal breaker, but it'll give you some ammo to bargain with. Last thing, especially for Gotways, ensure that the battery size and motor are what you're expecting. Lots of bastards on CL sell a wheel just by the model name, but unexpectedly got a small battery with a smaller weaker motor directly from china. They're cheaper, they wont go as fast, and they wont has as much range. For this you'll need to do some digging, either ask for a receipt that states what they bought, or ask them to do a speed test. If the wheel beeps at the correct max speed, you're usually good to go. If they left the battery size sticker on the wheel, and most people do, that usually enough to prove it to me. 5 Quote Link to comment Share on other sites More sharing options...
Balint Posted December 6, 2020 Share Posted December 6, 2020 Thank you guys, I wish I had a voltmeter, I'll see it today it's a V8 btw. It was barely used, he said he kept the battery in shape even when it wasn't used for a while. Quote Link to comment Share on other sites More sharing options...
Chriull Posted December 6, 2020 Share Posted December 6, 2020 47 minutes ago, Balint said: Thank you guys, I wish I had a voltmeter Then the voltage reported by the app is the thing to be checked. Verify that it's near to 84V after charging 2 Quote Link to comment Share on other sites More sharing options...
Riverie Posted December 6, 2020 Share Posted December 6, 2020 Great topic and help here. I'm about to pick up my first euc, it's actually 18L. Without going off topic from original thread...which app should I download on my iPhone to connect to 18L? Is 100% charge on 18L 84.4v? Is there other common specific issue occur on used 18L? Thanks in advance Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted December 6, 2020 Share Posted December 6, 2020 Just tell the seller to charge his wheel to full (keeping the charger in after it has gone green) and then have the seller show you any app (doesn't matter which, and he is going to have one anyways). Anything around 84V is good, it just shouldn't be notably lower. Full charge is 84.0V on paper. On your iPhone you can use Darknessbot for all wheels. Other than battery, check for obvious mechanical damage (especially for a bent rim) and ask about notable crashes and falls. 3 Quote Link to comment Share on other sites More sharing options...
Riverie Posted December 6, 2020 Share Posted December 6, 2020 20 minutes ago, meepmeepmayer said: Just tell the seller to charge his wheel to full (keeping the charger in after it has gone green) and then have the seller show you any app (doesn't matter which, and he is going to have one anyways). Anything around 84V is good, it just shouldn't be notably lower. Full charge is 84.0V on paper. On your iPhone you can use Darknessbot for all wheels. Other than battery, check for obvious mechanical damage (especially for a bent rim) and ask about notable crashes and falls. Thank you so much!!! Glad to find this forum and supportive community. Hope all goes well and I can start to learn the steep learning curve riding euc. Quote Link to comment Share on other sites More sharing options...
alcatraz Posted December 7, 2020 Share Posted December 7, 2020 I bought a second V8 used and I thougt everything was ok until I went up an incline very slowly. My other V8 pulls smoothly through the entire revolution but the second V8 has a torque dead spot so it shakes as it passes that spot. Luckily the wheel is still perfectly usable but it's not 100%. So I'd like to add to the other checks mentioned, the going up an even incline slowly test. Mine also came with a damaged battery pack (corrosion). It didn't bother me as I got it cheap and planned to rebuild the battery anyway. On the V8 it's relatively easy to open the battery up and measure it. You do have to break some heatshrink layers though. Luckily they're not needed as the battery has an enclosure. If I were selling I wouldn't like someone take it apart though. If it reaches 84.0v it should be ok. After buying you can open it to inspect further (house insurance). Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.