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Found 5 results

  1. Has anyone had trouble with their Charge Doctor not turning itself off automatically (auto-cut)? It seems like mine is never shutting off and instead just reducing the amount of amps to an extremely small number (like .05). I've read on other threads that the batteries charge quickly up to a certain point and then slow down, but I've even let it go overnight but it's still not turning itself off. Maybe it's time for a reset?
  2. The Charge Doctor with double input for IPS (Holtz, Zero...) is available. You can order it on the "Buy" page of my blog : http://hobby16.neowp.fr/buy/ I've also had questions about the IPS chargers, so I have posted a how-to mod a generic charger to make a customized charger with the right connector : http://hobby16.neowp.fr/2016/11/20/charger-customization/ The how-to is posted below as a backup : Charger customization Most e-wheels have settled for the GX16-3 connector. Some though use a different format and the corresponding charger may be difficult to find and are mostly more expensive. A customized charger with the right connector can be made from a generic 2A charger with the wiring instructions below. Various ewheel connectors, size and pin comparison Most frequently found connectors e-Wheel Socket Wiring Voltage Topo* Remark Most e-wheels GX16-3 1: V+ ; 3: 0V 67.2V 16S connector for Solowheel, Airwheel, Gotway, Firewheel, King Song… Gotway MSuper3 84V/1600Wh GX16-4 1: V+ ; 2: 0V 84V 20S other MSuper3 with battery <1600Wh have GX16-3 connectors IPS (Holtz, Zero…) GX16-4 2: V+ ; 4: 0V 67.2V 16S warning, same connector as above but different wiring! InMotion V8 ** GX12-3 1: V+ ; 2: 0V 84V 20S same connector & wiring as hoverboards InMotion V3,V5 Lenovo Int:V+ ; Ext: 0V 84V 20S Lenovo square socket, originally for Lenovo laptop power supply Ninebot One*** Lemo 63V 15S see photo for wiring*** Ninebot Minipro, Xiaomi ** GX12-4 1: V+ ; 4: 0V 63V 15S *16S = 16 LiIon cells connected in series, total voltage calculated using battery full value = 4.2V/cell ** important, the numbering order on GX16-3 connectors is totally different from the GX12-3 : from left to right 3-2-1 for GX16-3 compared to 1-3-2 for GX12-3 !!! Likewise for GX12-4 and GX16-4 GX12 and GX16 plugs, note the difference in pin numbering *** Wiring for Lemo on NinebotOne Beware of the charger For this mod, I recommand using the fanless 2A generic chargers. Even if they tend naturally to warm much more than a (noisy) charger with integrated fan, they have many great features: availability for various voltages, noiseless, compact and transportable… They allow fast charging at 4A by a parallel connection with the original charger using a Duo Charge Doctor (or even at 6A with the Triplex CD). Warning though, some 1.5A chargers are sold as 2A chargers. They have a smaller housing and are very hot when charging, thus unreliable in the long term. When buying it online, the vendor never details the housing dimensions and count on the buyers not to check the actual current to sell it. Without stated dimensions, the difference can still be made looking at the distance between the rectangle and the grooves (see arrows on the picture). Any vendor with such dubious practices should be avoided anyway. So don’t be misled, buy only the 2A charger with the bigger housing. Chargers 2A and 1.5A, size comparison
  3. I bought my KS16 from wheelgo.com which states the battery they deliver is 840 Wh. That is also confirmed by a sticker on the pedal. However, my charge measure it to about 560 Wh after charging. That's quite a bit under 840. How can I confirm the battery is really 840 Wh?
  4. I get use to control my 9B1 battery level with the famous "HOBBY CHARGE DOCTOR" (Many thanks to Hobby for this wonder ) and I would like to do the same with my 9B mini (Xiaomi version). As 9B mini's load jack is different from 9B1's lemo jack (still 4 pins but not the same shape & system. I imagine the plug of mini pro version is the same as Xiaomi version), I have to add lemo jack on 9B mini charger. I choose to cut wire close to the charging plug in order to weld a LEMO female plug (picture 1). And on the wire I weld a LEMO male plug (picture 2). It's always the same polarity (as 9B1's one) with pin 1 for the + and pin 2 for the -. Finally, I have an adapter that can load directly my 9B mini (picture 3) or by inserting Charge Doctor (picture 4). Now I can check the battery status of my 9B mini (pictures 5 & 6) and I can also use my 9B1 charger to load (faster than 9B mini charger). 9B mini charger is "only" a 70W that give 1,1A max. Compare to 9B1 charger that is a 120W that give 2 A, I can reduce loading time by half.