First run for the new LIFE pack will be tomorrow with the 1,800W - 48V brushless motor and the 20" e bike. It would have been easier to just solder the balance wires to the series connecters instead of using ring terminals.
The 22 gauge balance wires broke when I wrapped them around the terminals and tightened the series connecters. I also broke a couple with the ring terminals as the terminals were not really big enough and the bolts were most difficult to get in and tighten down. It took me all night until early morning to get it done. They are fully charged via the 15 amp 54.6V charger. Resting voltage is 52V about 19 hours later.
I am thinking about riding it to storage and bringing back the Currie ,my first e bike and the one I wrecked with a few weeks back. I just need to hook up the front brake. Hopefully I can find a replacement pedal crank or will just be a no pedal deal. It has the gear reduction chain drive in the rear and Bafang up front.
I doubt I will be adding the other 5 cells for 66V. It will stay a 15S pack. No more cells will fit in the container so just running it at 15S and will build a 12S and 20S pack later with different containers as long as this pack runs well. Storage is about 3.4 miles so 6.8 miles there and back. Probably 7.2 to 7.5 miles as I do not stay on the direct route due to high traffic.
If they make it back without tripping the LVC on my 48V brush controller they will pass the test. A really good reason to leave the 36V Bafang hub on the front is the controller is a 36 to 48V controller so should get me home if the pack drops below 40V. 40 / 15 = 2.66V. Cutoff discharge voltage is 2V for those Headway cells but do not plan on running them that low.
I rode the newest build tonight to Walmart. It has the 36V brush 1,000W Unite motor in the back. It is ok for short Walmart trips or around town where there are no big or moderate hills , just gradual incline , flat and decline. My first Unite brush motor was the 48V 1,000W. Both are rated at 3,000 rpms. The 48V one I had I ran at 36V - 750W for almost two years on the Currie after I burned up the 450W stock 24V motor up a steep hill at 36V.
I doubt I will ever buy another 36V - 1,000W bruh motor. I think it is a big lie. I do not see it pushing anywhere near 1,000W. rpm at 30V = 2,500 and power is 1,000 / 36 = 27.7 * 30 = 833W. It is on a 24" wheel. In fact I doubt it will go 20 mph or even keep up with a 350W Bafang hub motor at 36V.
The 48V motor also 1,000W was pushing 750W at 36V and rpm was 3,000 / 48 = 62.5 * 36 = 2,250 and was on a larger 26" wheel.
The 48V motor had way better acceleration and went up moderate hills no problem. I think top speed was around 24 mph. The 36V motor has piss poor acceleration and probably would not make it up the same hills the 48V motor did.
My guess is the 36V - 1,000W Unite motor is a 24V - 500W - 2,500 rpm motor. If I am right it would be turning 3,125 rpm at 30V and 750W. Gearing ; 29.85 mph at 750W instead of 23.88 mph - 833W - 2,500 rpm.
I owned a 24V brush 500W Unite motor and ran it on the front of a 20" bike at 36V and 750W. It ran a little better with the 20" wheel. It was awhile ago so not sure what sprocket was on the wheel. 11T motor probably.
I hate false advertising. It is just wrong that sellers do this and is like stealing. I need a way to prove it though. I would appreciate any feedback on the subject.
Has anyone here had any of the brush Unite motors I mentioned ??? I am thinking for my next chain drive I will get two of the 24V Currie 900W motors. At 30V - LTO each motor will push 1,125W and 2,250 total for close to 40 mph gearing. I would like 36 to 37 mph. < 38 mph for moderate hills. Two motors and one chain in the rear with the LTOs towards the front for good weight distribution. I am not sure when though.
The reason is 30V - LTO - 12 cells weigh < 25 pounds vs > 32 pounds for 16S - 40V and about 40 pounds for 20S - 50V. > 45 pounds for all 24 LTOs - 60V.
I spent > $600 for 24 LTOs. So far only the 20" BMX with the 1,800W brushless motor rides good with = or > 40 pounds of LTO. My 26" or larger e bikes don't handle as well as top heavy. Why I got a lighter LIFEPO4 pack now.