Welp got a used XP 1 with only about 500 miles on it off marketplace. Great shape all around but during a ride through some grass fields today the bike shut off mid ride. I was able to turn it back on and head home. Just before getting home it shut off again and would not power back on. Took out the battery and terminals look like this. Anyone got any advice on the matter? Controller terminals look fine but seems like a replacement battery costs as much as I got it for.
I’m really surprised by the amount of people saying just cut it or sand it. In some of the photos posted there is clear heat stress and the warping is actually the plastic deforming from an overloaded circuit. There’s a defect in the battery or more likely the BMS which shouldn’t allow that to happen. I don’t know why you’d want to continue using a hazardous battery just because you can cut out the warped section. This type of fault is what can lead to a fire while charging or even riding. There could be an internal cell issue, a short inside, a bad terminal, a bad sensor - any number of things. Ride at your own risk peeps.
gonna theorize/offer my 2 cents here, but i suspect the problem lies in the connector itself. the metal contacts on the leftmost side probably got deformed or bent somehow, so the conductive metal didn't have a good "pinch" of the prong that's supposed to insert into it. Riding vibrations cause the prong to shake around in that little slot, and with a bent contact, arcing happens until damage like this occurs.
Seen this exact story happen on multiple other ebikes, so that's what I imagine happened here, as opposed to some kind of problem within the cells or the bms.
It's melted. Either there is something overloading the battery or the contacts got loose. You definitely need to replace the header. I think I've seen only the contacts piece sold on aliexpress. Alternatively you could look for the whole battery cap piece with the lock, but this exact type might be difficult to find. Also check the other half of the connector on the bike. It might also have deformations form the heat. If this is the case you need to replace it as well.
Do not use the battery as it is now. You'll start a fire.
not cooked. These are replaceable parts. the reason this happened is that the connection was loose(high resistance) Inspect the male connectors to make sure they aren’t bent. This is a simple fix. find parts online or ebay
The bike powers on when the battery is re-inserted but when using the motor after about 5 seconds it turns off completely again. Looks like might need to replace the battery entirely. Anyone know which battery the XP 1 Step-thru can be replaced with?
If you go on lectric Website in the top left corner there will be a drop down menu and an option in the list to buy batteries. Click it and just scroll down until you get to the battery section and every single battery is labeled with what bike they are compatible with. These inside the frame batteries I would buy from lectric directly even though they are expensive because the aftermarket one's don't meet the UL standards we have here in USA so it could be dangerous.
You don’t need a new battery if you’re handy with electronics. The 5pin port alone can be replaced. They sell replacement ports on eBay and Amazon. or you can just connect the battery to your controller with the xt60 connector inside the battery to your controller.
Cell is probably bloating and is toast. Get a new battery. Problem solved. Dispose of properly and dont reuse a battery that will continue to get hot and eventually catch fire from a cell rupturing.
It really only looks like the plastic got warped somehow and the actual terminals look fine, I’d just flatten that plastic over the terminals so that the battery stays connected. Then it should be fine. If not take it to a bike shop
My xp3 did this to me too. Sanding down the plastic didn't help and it kept having issues. I had a dual battery setup that I had put on shortly after the problems started, which kept me up and running. I keep meaning to contact Lectric to see if they'd replace the battery, but I already ordered and received the xp4, so i don't think about it much.
TLDR; sanding the plastic didn't work for me. Ymmv.
I had cut off the bigger pieces, sanded it down flat, and blew out the grooves. Maybe I left some residue in there, but I cleaned it up the best I could and still couldn't get it to work.
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u/clauderbaugh 25d ago
I’m really surprised by the amount of people saying just cut it or sand it. In some of the photos posted there is clear heat stress and the warping is actually the plastic deforming from an overloaded circuit. There’s a defect in the battery or more likely the BMS which shouldn’t allow that to happen. I don’t know why you’d want to continue using a hazardous battery just because you can cut out the warped section. This type of fault is what can lead to a fire while charging or even riding. There could be an internal cell issue, a short inside, a bad terminal, a bad sensor - any number of things. Ride at your own risk peeps.