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Showing results for tags 'low battery'.
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Hi, I'm wondering what other 18XL owners' experience is with the 18XL in terms of speed throttling at low battery. My experience is... It's never done it to me... Ever. Granted, I usually charge it when it gets down to 30% (I like long rides so I tend to want to make sure I'll have plenty of range whenever I go out for a ride), but the when times I've gone below 25%...no speed throttling if any kind. The day before yesterday I got it down to 15% (idle) by the end of the ride, and zero tiltback our speed throttling. Even during the last few kms, (I was monitoring Wheelog constantly while riding), the battery ranged from 5-8% under stress, and dropped to 0% on a few steepish climbs, still no throttling. Is this normal? Should I be worried? Granted, on such low battery I throttle myself out of common sense (no high speed, yet to avoid bumps, etc), but I'd still like to know whether this is an isolated issue with my wheel or if others area experiencing the same thing. Thanks!
I was watching a video of a rider on a Ninebot One E+ experiencing tiltback while having low battery. As there are many Ninebot One riders here on the forum I thought I would post my style of riding on low battery (less than 5 miles range (red zone) left on the battery) and experiencing tilt back cues from the EUC. The Ninebot One E+ responds positively if the rider accepts the tilt back cue in the following way upon receiving a low battery- excessive speed (range = 5 miles and less on the app) tilt back cue from the bot: 1-assume a mild transition to a braking position with the feet tending to push forward (legs perpendicular to the tilt back angle) 2-as the bot slows the pedals return to the horizontal 3-repeat steps 1 and 2 as additional modest speed induced tilt back cues are issued from the bot Note: the riding speed becomes very slow as compared to green zone battery ranges of 7 to 17 miles but the recovery to a horizontal pedal position allows for an easy balanced ride upon a moving NineBot One. Going several miles is very possible on low battery. Keep it slow. Trying to zip across a road at a crosswalk will produce a tilt back if you try to go to fast. When the bot won't go any further it will audibly and continuously beep to tell you the battery has no more range left.. The circular rings on the Ninebot display turn red in the lower section when stopped at low battery. A quick glance at the LEDs (ex at night when the ring color is most visible) will tell you without the app that your battery is getting really low (< 5 miles of range). Let the Ninebot One E+ be the boss when it comes to attainable speed limits on low battery.
Yesterday i drove my batteries to depletion. It is considered unwise, so I do not recommend that you repeat it. In the firmware version 1.20, low-battery safety speed limitation was added. A good reason to test how it was implemented. The KS18 responded in three stages to the low battery. I started with full batteries. I drove a lot uphill and downhill (an estimated total of 400 meters up). Around the 60km mark the first stage kicked in. Stage 1: Despite the fact that i did not reach the speed-alarm speed, a double beep informed me that I was going too quick for the battery charge left. Slowing down the beeps went away, and I could do 15-20 km/h without problems. On accellerating, the beeps returned immediately. The beeps were not set to a particular speed. I know this, because downhill I could still reach higher speeds. Accelerating slow was no problem, but a quick accellerating resulted in beeps. Gradually the speed I could reach lowered. The battery LED indicator, went between 4 and 2 LEDS. Everything on and below 2 LEDS made it beep. Conclusion: whenever the voltage dropped because of the power asked, the beeps kicked in. Stage 2: I kept the speed mostly so that the beeps would not sound, and slower and slower i went, until all battery LEDS started to flash in unison. This was well over the 65 km mark. Also, continually single beeps (longer than normal beeps) were played in sync with the flashing LEDS. I continued at the terribly low speed of 8-10 km/h feeling completely confident that i would not hurt myself in case I would "fall" off. Stage 3: The 8 km/h speed was no longer possible around the 71 km mark. My kingsong started tilt back to 5 km/h and after another 2 km even below that. Riding had become virtually impossible/useless, and decided to call it a day. I immediately plugged my wheel in to recharge, and assume that I did do no damage to the batteries. I learned the following: 1) The KS has a good protocol for low voltage/low battery 2) After the first stage kicked in, I still could go a reasonable distance: 13 km. If you are not in the middle of nowhere, you can still reach a busstop or a charge-point of some sort. 3) This is the most important lesson: I will never again ride continually above the 2beep speed alarm, because it is the same as the low-voltage alarm. Two beeps means I have to slow down, whatever the reason for the beeps. So, set you speed-alarm accordingly.
Dear battery experts out there, I need your advice please: I have a new Gotway Mten with a low battery and I can't charge it anymore (likely due to a broken BMS). The picture shows the voltage on the main battery connector to the motherboard. Connecting the charger to the separate charging connector does not do anything good (no current flow). As things are progressing (slooooow), resolving the problem may take a while. Now I am afraid, that storing the battery at this low charge for any extended period may harm the cells. Question: Can I charge it up to a good level for storing (like between 60V and 62V) by connecting the charger directly to the motherboard connector??? This connector seems to work as the Mten still functions with the battery installed. I'm aware, that screwing up polarity or overcharging it may cause some spectacular fireworks and that there will likely be no balancing with the broken BMS. So, I would carefully babysit it while charging and disconnect at reaching about 61V. Do you think, that's a good idea?