Search found 10 matches

by cre8tiff
May 13 2018 8:44pm
Forum: Battery Technology
Topic: High current battery pack
Replies: 2
Views: 420

Re: High current battery pack

Hi Flippy, thank you so much for the suggestion. Awesome. There’s an ANL fuse in the controller already. And I’ll be adding one more pre-bms too.

Thank you!
Ps: it’s a QS rated 12kw hub motor that’s 260 x 70H
by cre8tiff
May 12 2018 8:59pm
Forum: Battery Technology
Topic: High current battery pack
Replies: 2
Views: 420

High current battery pack

Hi all, thank you for any help in advanced. I’m getting a 72v 200amp continuous (500amp peak) lifepo4 pack done. Just occurred to me, do I need a fuse at all? I’ve searched rudimentarily in the section. But can’t find much. This is a fuse that I found that can kind of work: http://m.littelfuse.com/~...
by cre8tiff
Feb 01 2016 2:35am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: My Performance Chinese E-Scooter
Replies: 27
Views: 11064

Re: My Performance Chinese E-Scooter

Ça va? Very cool! That anderson power connector is epic though. Haha. Was in China for the past three years too.
by cre8tiff
Jan 28 2016 2:19am
Forum: Motor Technology
Topic: Help needed on this motor
Replies: 8
Views: 795

Re: Help needed on this motor

Hi, this is 10" hub motor that is rated for 6kw at 72v.<snip> The median power rating typically with these 10" motors are 3kw-4kw. Ah, well, given that the actual watts from the V x A they list would be about 2/3 of what the chart shows, and so is 4kw about 2/3 of 6kw, that makes sense. ;...
by cre8tiff
Jan 26 2016 11:04pm
Forum: Motor Technology
Topic: Help needed on this motor
Replies: 8
Views: 795

Re: Help needed on this motor

Since V x A doesn't equal power in, you can't trust any of it. I take risks all the time with foreign purchases, but when someone cuts and pastes inconsistent data in motor test info, then I simply pass and more on to a better vendor. There are plenty of fish in that ocean. It's just like hooking u...
by cre8tiff
Jan 26 2016 6:59pm
Forum: Motor Technology
Topic: Help needed on this motor
Replies: 8
Views: 795

Re: Help needed on this motor

83% peak efficiency is crap, but since you busted them with wrong info (V x A should equal W in P1), I wouldn't trust any part of it. Hi, yeah, that's what I'm leaning towards too. The peak efficiency is pretty low by modern standards. I didn't plot the chart/data. These numbers are straight from t...
by cre8tiff
Jan 26 2016 6:57pm
Forum: Motor Technology
Topic: Help needed on this motor
Replies: 8
Views: 795

Re: Help needed on this motor

What is it supposed to be a chart of? (what kind of test was done to generate the data, and what was it done with, and what was it done to?) Where is the chart from? Hi, this is 10" hub motor that is rated for 6kw at 72v. Direct drive. Source from its Chinese manufacturer. I've absolutely no i...
by cre8tiff
Jan 25 2016 8:15pm
Forum: Motor Technology
Topic: Help needed on this motor
Replies: 8
Views: 795

Help needed on this motor

Hi, can anyone very kindly help me interpret this chart? How do we derive at the W1 (input W)? Is this V x Phase Amp? Why did the voltage dip so low into the 60s V? I've seen some charts that remained in the 70ish range throughout. And, is 83% efficiency good enough? How much power and amp (10sec bu...
by cre8tiff
Dec 10 2015 7:31am
Forum: E-Bike Technical
Topic: Question: I'm changing the connector to my lithium 48v18ah p
Replies: 3
Views: 482

Re: Question: I'm changing the connector to my lithium 48v18

Hey, thanks lots for the really helpful answers!!!! Really appreciate these! Thank you!
by cre8tiff
Dec 08 2015 12:46am
Forum: E-Bike Technical
Topic: Question: I'm changing the connector to my lithium 48v18ah p
Replies: 3
Views: 482

Question: I'm changing the connector to my lithium 48v18ah p

Hi all, sorry if I'm littering the board. Hope to get some help quickly. Question: I'm changing the connector to my lithium 48v18ah pack. It doesn't come with an on-off switch. Do I cut the negative and positive wires individually and sequentially to solder onto the new connector (just like how its ...