12S 5.2Ah is just 225Wh (double boosted and they hit about 5miles under normal conditions). from my experience i always need 10Wh/kilometer minimum (last record run exactly 9Wh/km!!!),
usually more like 13Wh/km under normal riding conditions (with single motor) … so with your battery thats max 20km range for all my builds under “cruise” conditions and more like 15km range under my “normal” conditions (heavy carving at 30kph+).
you might have found the holy grail of hubmotor+esc combos or had really helpful wind/slopes.
advertising at 260Wh is not correct in my books - you multiply the nominal voltage with the capacity, not full loaded cell voltage. thats because on avg, a cell will have its nominal voltage, so its 12x 3.6V x 5.2Ah = 225Wh
@whitepony Mmm thanks for the tip. I’ll change the calculation. I’m sorry about that, I always thought it was calculated at Full Charge. BTW, I love all your builds man! They all look Perfect
@Pantologist 20mph cruising is pretty quick for cruising around specially if there’s people around. But yeah 20+mph is fine on the streets!
@Michaelinvegas Sorry about the late reply, I’m not getting notifications for this post and I’m not seeing it on the forum unless I search for it… It’s kinda weird. (Just found this topic got switches to muted on my profile and I didn’t realize)
But anyway, I’m not really getting voltage sags on this battery. It’s kinda crazy because I’m so used to it for Lipos I’m expecting this to just do a hard cut off when I accelerate to hard but it just slowly goes into the cut off.
did you file a flat spot on the axle for the grub screw?
I filed 2 flat spots (one on each side) for the grub screws and then i used loctite to hold them in.
hopefully you didn’t break a phase wire like I did on mine
@lowGuido I was nervous about grinding a flat spot on the actual axle, so I just tightened everything very tight!
worked great for the one on the right but the left one not so much!
Now That I know you have a flat spot I’ll go ahead and file a little spot for it. And yes loctite it all!
And motor is still working perfectly!
@Michaelinvegas ETA on batteries are late July early August, So far first batch (which I ordered few extras also) looks on track to be shipping before August!
They’re rated for 1000+ cycles!
I have around 34-36 cycles on this one. I’ve been testing for a month charging/discharging every day and some days twice a day!
Going up and down parking garages as I do not have any hills in Miami and going full throttle with hubs. I have yet to go full throttle with a satellite motors as I have 250kv geared pretty low and it’s over 40mph which I’m too scared to hit.
I’m sure most liion 18650s can do 1000+ but their capacity drops below 50%. Hopefully you can get to around 300 cycles and then test the battery capacity.
Pretty awesome using cells that are uncommon on esk8. Where did you buy them?