Mid-Drive Build - comments and recommendations welcome

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
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FlightService   100 mW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by FlightService » Dec 05 2017 9:09pm

At 250lbs I am thinking 15S4P but shallow charge them to 4.05 for a 60V 12.6 aH with the ability of a 120amp MAX rated discharge! NCR20700A cells from a Bosch/Dewalt packs.
Engineer: (n) en·gi·neer \ˌen-jə-ˈnir\ -Someone who does precision guesswork based on unreliable data provided by those of questionable knowledge. (See also: wizard, magician, miracle worker)

Buk___   10 kW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by Buk___ » Dec 06 2017 5:28am

markz wrote:
Dec 04 2017 9:07pm

What I notice is for every 62V 6Ah 10S4P brick ...
"62V" and "10S" does not seem to equate?

markz   100 GW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by markz » Dec 06 2017 4:04pm

I do not charge to 4.20V/cell, but I charge the entire pack to 62 instead of 63

Buk___   10 kW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by Buk___ » Dec 06 2017 4:15pm

markz wrote:
Dec 06 2017 4:04pm
I do not charge to 4.20V/cell, but I charge the entire pack to 62 instead of 63
Hm. 62V / 10S = 6.2/cell? Special cells!

markz   100 GW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by markz » Dec 06 2017 4:19pm

Oh hehehehehe yeah 15S my bad
:oops:
brain fart

I am in between reconfiguring my packs from 15S to 10S to get more capacity (Ah).

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FlightService   100 mW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by FlightService » Dec 07 2017 10:48am

maybe I missed it but what controller are you using? Going from a 60V to a 40V pack seems like you would loose alot of speed.
Engineer: (n) en·gi·neer \ˌen-jə-ˈnir\ -Someone who does precision guesswork based on unreliable data provided by those of questionable knowledge. (See also: wizard, magician, miracle worker)

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FlightService   100 mW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by FlightService » Dec 21 2017 11:42am

Image

Ride profile of going home with a simulation of the MAC 8T

Thoughts?
Engineer: (n) en·gi·neer \ˌen-jə-ˈnir\ -Someone who does precision guesswork based on unreliable data provided by those of questionable knowledge. (See also: wizard, magician, miracle worker)

Buk___   10 kW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by Buk___ » Dec 21 2017 12:20pm

FlightService wrote:
Dec 21 2017 11:42am
Image

Ride profile of going home with a simulation of the MAC 8T

Thoughts?
What simulator is that?

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FlightService   100 mW

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Re: Mid-Drive Build - comments and recommendations welcome

Post by FlightService » Dec 21 2017 1:28pm

http://www.ebikes.ca/tools/trip-simulator.html

In the "Input type" header the default is elevation, you can click on it and go to Google Maps. It will upload your elevation and distance profile after you close the window. Really cool.
Engineer: (n) en·gi·neer \ˌen-jə-ˈnir\ -Someone who does precision guesswork based on unreliable data provided by those of questionable knowledge. (See also: wizard, magician, miracle worker)

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