Recent content by koter

The motor is made by QS motor and rated to 19 kW compared to 25 kW in The Zero DS. The Evoke controller is 400A@99V, I believe. The Zero is 550A, but with lower voltage. 0-60 mph is said to be 6.0 sec compared to 5 sec for the DS (FX and SR are quicker). Batteries are Samsung SDI which should...

The zero is quite a step up in price when you compare the battery size. The Zero however is equipped with ABS, which halves the possibility of you killing yourself while riding. For a commuter, that would be worth a lot.

Just read the news about the Urban S now using Samsung SDI cells instead. This is interesting. The only thing (not so small unfortunately) keeping me from buying one immediately is the lack of ABS.

Could you link some reviews? I'll just run them in google translate.

To bad that you didn't have the chance to try it out. I still haven't seen any reviews of the bike on the Internet, which is odd since they have been selling it for a while now.

Where do you see the European dealer? Has anyone actually tried in of these? Google doesn't actually tell me that much more..

Wow, that was really good. So what they basically are saying is that under load or when it is cold, it is okay to go below the regular low voltage cutoff, since the voltage is lowered by higher internal resistance, not by battery energy depletion.

It's not the cold itself I'm worried about. The cell can handle -45°C on discharge. What I'm worried about is the voltage during acceleration going below what is normally the low voltage cutoff.

I'm using lifepo-batteries in my electric motorcycle. The motorcycle has 24 cells and thus a nominal voltage of around 77V. During normal temperatures the voltage dips around 5-7 Volt when high power is pulled from the pack during max acceleration. When the cells are cold, i.e. 0°C or below...

Its only 45W, so it should take around 6 days on average to fill the battery. Yesterday there was some shade in the afternoon where the boat lies, but tomorrow it will be in the sun the whole day. Lets se if that gives me any extra amp hours.

I did connect the battery to a regular 12V lead acid battery charger, and it did charge the battery up to 13V. After that I connected it to my regular solar panel setup in the boat. It seems like it's stuck at 13.1V though, so I guess some cell(s) is/are damaged. I haven't drilled a hole yet to...

Some news on this project. The Keyde motor apparently didn't work in rain. It was flooded and stopped working. Now Keyde want me to send the motor back at my own cost (> 70 USD). Of course that is not reasonable since they obviously sent me a broken item at the first time. The motor is supposed...

Of course it's an RCA-connector. But with a shorter middle pin. It does fit perfectly with an ordinary RCA though. A little report from last run; Did 12 km with the bike. Average speed 24 km/h, max seems to be around 32 km/h. The 6.8Ah battery had a voltage if 33.6V afterwards. Not sure about...

Assembled the bike with the keyde motor. Runs really good. I get around 32 km/h with minimal input from my legs. Haven't tried for distance yet with my 6,8Ah battery, but after 15 km the battery voltage was 33,6V. Bad quality on the battery LED indicator strip. That thing died the first day...

Deans are nice, but the female battery connector is built into the battery itself. See the connector inside the red ring. I could of course chop of the connector and build an adapter from it..