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If I run them down all the way - to the point beyond being able to power up my Segway - we’ve got a problem. At that point, I’ve got two dead batteries that may or may not come back AND a faulty power base. But if I leave “some” charge in the battery, at least the seller can swap these batteries into another power base and figure out if the problem follows or not. If the problem is the batteries, fine, they’ll swap it out. Same for the powerbase. So I’m playing with it overnight - leaving the batteries out altogether to hopefully “force” the Segway to reset itself. I don’t believe there are any storage capacitors onboard so this “should” do a full reset, in theory. Again, the initial thought was around temperature, but the garage heater has been on 24x7 all week (I do not want to see that electric bill!). It’s averaging about 64 degrees in there, which I’m assuming should be sufficient to charge, yes? |
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If I'm going to run them dead on purpose, I sure would want to be able to recharge them ASAP If they won't charge when they have a 30% SOC, they're probably not going to charge when they're down near 0% either Don |
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Note that the calibration procedure (in the instruction manual) does not discharge the battery to zero. The Segway (if operating properly) will turn off at the point where the batteries can be recharged. That's the same point that it would, if gliding, do the "stick shake warning" and shut down. Please keep us informed as things develop. |
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I also suspect it’s not a calibration issue since the charging lights go green and stay solid green - even after a full day, no blinking at all. If the batteries were really “topped off” and just the gauge was out of whack, the lights would blink, right? I’d rather leave a little charge in the battery if I can, rather than bring it down to stick-shaker level. If nothing else, that’ll make it easier for me to move it around if I have to pack it up. Unfortunately I don’t have the gear to check the battery capacity. I could put a multimeter on it, but that wouldn’t tell us anything but the voltage - no real bearing on the level of charge. Ugh - if I had a second unit here, it’d be easier to diagnose. Did the overnight battery-out hard reset, with the batteries in the house at 72 degrees. Plugged it in about 9am this morning; will check again at 9pm tonight and if it’s still showing 2 bars ... methinks we have a charger problem. Just assuming until we speak with Segway Inc but for now - it’s all I got. :-) |
Here is how I would proceed with this repair in our shop. Based on what you are describing there are 3 components that I would focus on with the SE model, in the following order:
Power Board- likely the issue Radio Board- possible AC Input Filter- very rare Verify charging- remove the batteries and take the voltage reading on both batteries for the baseline initial voltage reading. Reinstall the batteries and place the unit on charge for approximately 30 minutes. Remove the batteries and take the voltage reading again. There should be an increase from your initial voltage reading. If the voltage is the same, or lower, then the Power Board is the likely component that has failed. If there is an increase in voltage during this initial test, I would then place the unit on charge for 8-12 hours. Retake the voltage reading afterwards and if you have a reading in the 78 range then the batteries are fully charged. Even though you are getting solid green lights and only 2 bars, the radio board may be failing which is not giving you the correct infokey information. The are other obvious signs that appear first, like trouble powering the unit on and off. This is likely not the issue, but it’s a possibility. This is a start... Power Boards run about $280 and take about .5 hours to swap out. |
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I’m going to go for the gusto here and drain it in Wall-leaning mode. Let’s see what happens. Thanks for the input - stay tuned! |
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Disclosure- I am Level III trained in Segway PT repairs, and I repair 200+ units per year. Some repairs are straight forward, but yours will take a bit of time to R/O what component may be the root cause. |
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