Recent content by jakun

I was lucky to get an other new controller from china for scooters. It's made for 72Volts and it works well up to 95Volts. I used it some time at this voltages. But now i just tried to connect 3 Dewalt batteries in series to it and it workes. The controller gets pretty hot @108V but it works. I...

Hi apropo destroying things. Here you can see what happens when full 30 Amrere goes into a dewalt Batterypack because of a dry joint in a double pack. I think some of the batteries just broke down and then the other got too high voltage and burst.

Hi I bought a new controller for higher voltage and cause the motor didn't run well I triet to do as you explained. Now it works well. But another thing that I detected is, that with an other hallsensor configuration than that which I am running now, the motor was verrry verrrry fast and did...

Here is my new E-bike conversion. The only thing on my to do list is to install a disc brake on the front wheel.

The motor doesn't get really hot, just hand warm after a lng trip, but its winter here. I wonder how much I can push it. When I will do the 99V configuration, it will pull max. lets say 28Ax100V=2800W at acceleration and something between 1000-1500W at driving. It should got ca. 77Km/h freewheel...

you can just take a bigger batterypack. My is only ca. 4kg, so twise would be 8 kg with a range of up to 40km.

I do charge them first normally with 16A, so it's 4A per cell and when they are full, I plug in the ballancer to a pack after another to ballance if necessary. I ballance so, that the charger is still on. So the main volt level of the pack is allways the same, while ballancer is doing his job...

Hi here is how I charge my dewalt battery. I fond out, that it is ok to ballance the packs after a couple of charges. With this device I can charge the 2s2p pack in about 34-40 minutes when it's almost empty. The MRGN-900 gives 550Watt with (36V @16,2A) and I stick the 4 Dewalt batteries...

I drive my bike now for one month with nine continent brushless motor and this low cost controller from china: http://www.endless-sphere.com/forums/viewtopic.php?f=8&t=2615&p=42032#p42032 @ 4 dewalt 2s2p Akkupack and it rocks!!! I have a really good acceleration and a topspeed of 40 km/h. By...

I bought this thing and yes it does balance "stand alone".

Hi, I've got it from ebay in germany. it's from gerda you can search for: "Gerda Touring Tresor Koffer schwarz 14 LITER" the guys name on ebay is: radwelt-hawner he has a shop.

hi, no modifikation with the wattsup, it works just like this.

Hi, I'm running a 48V 28A controller with 72V and a nine Continents Motor. Now I think about making a 3s2p Dewalt akkupack, whitch will be at ca. 105V. I thought about updating my controller with the 4110 mosfets and install new capacitors whitch will handle up to 100V(the actual ones are rated...

Hi volks! This is my first ebike, with a 60volt configuration. __________________________________________ Now upadted it to 72V with one more lead acid and now I have a top speed of 41km/h without paddeling. This rocks :lol: __________________________________________ Next project will be...

Hi volks! This is my first ebike, with a 60volt configuration. __________________________________________ Now upadted it to 72V with one more lead acid and now I have a top speed of 41km/h without paddeling. This rocks :lol: __________________________________________ Next project will be...