Recent content by rafeh1

Nice to read this Rafe from calibike

Hi Kepler Did u ever get pas running with vesc I was thinking pas could go where the skateboard throttle goes Rafe

whats the net weight motor batt and all

did a good 11 mile commute on my 30lb 30 mph 30 mi range road ebike, https://www.youtube.com/watch?v=QS0JenyUf-M&t=180s QS0JenyUf-M

I use my ebike on metro and metrolink as range extenders. I find ebike is faster same start point same end point. Log ride on strava eride than compare w google maps for car. Driving is for drones as far as la is concerned...

i got one of these rear flasher with a tracker built in. http://www.aliexpress.com/item/Spybike-gps-tracker-it-s-built-in-the-bike-rear-lamp-with-motion-sensor-support-anti/1697020412.html I put a pay one last all year sim and put $20 in it. http://www.lycamobile.us/en/ After 2 weeks act was...

I did a formal test of my ebike 40c3 with calibike 48v15a battery https://endless-sphere.com/forums/viewtopic.php?f=3&t=73270 and the video q1vkqMkvTqU

I did a formal test of my ebike 40c3 with calibike 48v15a battery https://endless-sphere.com/forums/viewtopic.php?f=3&t=73270 and the video q1vkqMkvTqU

hi sloan the battery will show a voltage even when switched due to high capacity caps inside BMS. But if you put a load with switch off this voltage will go to zero. This is normal behavior. rafe

Dunum Our calibike battery packs have electronic balancing circuit not a resistor based one as in older designs. You cannot see any resistors on bms because there aren't any. Just like your intel motherboard. its all integrated inside the bms chip set. rafe

the cells are screened for 2200 mah capacity They are rated for 3C but our BMs only uses them at 2C. The BMS chips are a family with different chipset/ pinouts for 13Sx7P pack 2200 mah * 7 in parallel = 15.4 Ah 4.2v * 13 in series = 54.6V Thus a fully charged calibike 48v15 will show up as 54V...

hi Here is what i was able to dig up on the bms chip set I went thru the BMS chip level schematic. The chip used as master controller in the BMS has a balancing network and does not need external resistors. I tracked down the chip specs which are in Chinese along with a Chinese app note. I...

As i said previously the BMS uses fet based balancing network does not need resistors. The balancing network is in the BMS controller chip. As far as the 18650 I use generic Chinese batteries that are screened for 2200 ma output. I hope that helps Rafe

dear DnMun, I am sorry I dont't think you know what you are talking about re balancing network. I went thru the BMS chip level schematic. The chip used as master controller in the BMS has a balancing network and does not need external resistors. I tracked down the chip specs which are in...

got my ultra 72v15. (got a pair) monster power