hobby16 Posted November 20, 2016 Share Posted November 20, 2016 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 Link to comment Share on other sites More sharing options...
Cloud Posted November 21, 2016 Share Posted November 21, 2016 I cant see the pictures for some reason. @hobby16 is there a charger doctor with double input for two 1.5 GX16-4 inputs for gotway msuper3 1600wh 84V that i can buy? thanks Link to comment Share on other sites More sharing options...
hobby16 Posted November 21, 2016 Author Share Posted November 21, 2016 @Cloud Where can't see the pictures, on my blog or on this forum ? Yes, the CD with double input GX16-4 for Msuper3 1600Wh has been recently added on my blog's "Buy" page : http://hobby16.neowp.fr/fr/buy/ Charge Doctor V2 double input for GOTWAY Msuper3 84V/1600Wh. With GX16-4 pin connector. See pinout 32.10 € Link to comment Share on other sites More sharing options...
Cloud Posted November 22, 2016 Share Posted November 22, 2016 Thank you @hobby16! I will order it. I can see pictures here now! by any chance do you sell the actual charger? I have one but need a second one. If not, do you know where i can order one? thanks! Link to comment Share on other sites More sharing options...
hobby16 Posted November 22, 2016 Author Share Posted November 22, 2016 20 hours ago, Cloud said: by any chance do you sell the actual charger? I have one but need a second one. If not, do you know where i can order one? No and no, sorry. 84V chargers are indeed not generic and hard to find. Gotway has used a 4 pin connector probably to let the customer stuck with its charger. But you can probably count on Gotway not to sell its chargers at racket prices like Ninebot. An Inmotion V8 charger can also be changed to a GW charger by soldering the 4 pin connector, it would widen somehow the sourcing. Inmotion has generally quite good prices too. Link to comment Share on other sites More sharing options...
Cloud Posted November 23, 2016 Share Posted November 23, 2016 3 hours ago, hobby16 said: No and no, sorry. 84V chargers are indeed not generic and hard to find. Gotway has used a 4 pin connector probably to let the customer stuck with its charger. But you can probably count on Gotway not to sell its chargers at racket prices like Ninebot. An Inmotion V8 charger can also be changed to a GW charger by soldering the 4 pin connector, it would widen somehow the sourcing. Inmotion has generally quite good prices too. Thank you. I believe Gotway has used the 4 pin connector so that people with 67v gotway models dont confuse the chargers and not plug in the wrong one. Using 84v charger for a 67v wheel, i imagine, can lead to unfortunate results. its a good idea to use the V8 charger. I stead of soldering the pin connector, do you know if i can buy a ready connector that converts inmotion plug into the 4 pin gotway? That would be ideal... Thanks!! Link to comment Share on other sites More sharing options...
swvision Posted November 23, 2016 Share Posted November 23, 2016 4 hours ago, Cloud said: Thank you. I believe Gotway has used the 4 pin connector so that people with 67v gotway models dont confuse the chargers and not plug in the wrong one. Using 84v charger for a 67v wheel, i imagine, can lead to unfortunate results. its a good idea to use the V8 charger. I stead of soldering the pin connector, do you know if i can buy a ready connector that converts inmotion plug into the 4 pin gotway? That would be ideal... Thanks!! Have you found a place that sells the V8 charger for cheap, the build quality might be better than Gotway's too? Also, wouldn't it damage the v3s+'s battery packs if you plug in two chargers? Link to comment Share on other sites More sharing options...
Cloud Posted November 23, 2016 Share Posted November 23, 2016 5 hours ago, swvision said: Have you found a place that sells the V8 charger for cheap, the build quality might be better than Gotway's too? Also, wouldn't it damage the v3s+'s battery packs if you plug in two chargers? I havent found it yet. Also, yeah i am not sure if i can plug it in with the gotway charger together. Not sure if in otion charger amperage is the same as Gotways (1.5a) and if its different, not sure if can be used together. Link to comment Share on other sites More sharing options...
hobby16 Posted November 23, 2016 Author Share Posted November 23, 2016 10 hours ago, Cloud said: I havent found it yet. Also, yeah i am not sure if i can plug it in with the gotway charger together. Not sure if in otion charger amperage is the same as Gotways (1.5a) and if its different, not sure if can be used together. @Cloud,@swvision MSuper3 84V with battery not at 1600Wh have connectors with 3 pins ! Only the model with 1600Wh battery has 4 pins, go figure... No, there is no problem using a Gotway 84V charger on Inmotion wheels and vice-versa, I can certify that, having made a mixte Charge Doctor allowing such setup, see more details about the battery topology on different brands here The precaution needed though is to avoid a high charge current that will reduce the battery's lifetime, "high" depending on your wheel's battery capacity. See my post on "What is the recommended charge current". In a nutshell, when you want to know if your wheel can be fast-charged (eg at 4A, by connecting two 2A-chargers in //), the first thing to know is the battery's capacity in Wh. Link to comment Share on other sites More sharing options...
hobby16 Posted November 23, 2016 Author Share Posted November 23, 2016 21 hours ago, Cloud said: its a good idea to use the V8 charger. I stead of soldering the pin connector, do you know if i can buy a ready connector that converts inmotion plug into the 4 pin gotway? That would be ideal... Thanks!! Oh, great idea. Such ready converter don't exist of course. But I can sell you the required connectors (if you know how to solder) or I can make the converter for you, just ask me when you order the Charge Doctor. Link to comment Share on other sites More sharing options...
Cloud Posted November 24, 2016 Share Posted November 24, 2016 1 hour ago, hobby16 said: Oh, great idea. Such ready converter don't exist of course. But I can sell you the required connectors (if you know how to solder) or I can make the converter for you, just ask me when you order the Charge Doctor. Thank you. I actually already ordered the charge doctor yesterday. Not sure if you shipped it already or not. Yes that would be great if you could make the converter. Let me know how much that will cost. I sometimes solder but not very well, so i dont trust that it will hold long term if i do it myself. I still have to find the inmotion charger first. Let me see if i can find the inmotion charger, and i will let you know. how many ampers is the inmotion charger by the way? if course, another gotway charger would be easier. I will ask Gotway about buying another charger also, will let you know Thanks! Link to comment Share on other sites More sharing options...
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