48v upgrade

thelarkbox

Esteemed Pedelecer
Aug 23, 2023
1,252
385
oxon
First option listed is a 15awave
Thanks for the link, can't find one that will work sensorless, the 22a are dual mode but physically too big.
Options 6,7,and 8 are 17a squarewave controllers, my 17a sinewave controller from this seller is a 36/48v controller and is only nominally larger than the 15a controller it replaced.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
20,981
8,565
61
West Sx RH
Squarewave like sinewave can still be sensored.
 
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Hightechpete

Pedelecer
Jan 20, 2018
155
34
73
west Wales
Update:-
A new controller and LCD4 have been installed, a square wave 20A 36/48v controller (pictured below) was found on Ebay (https://www.ebay.co.uk/usr/lightinbike18)
it was listed as 36v but turned out to be 36/48v, a bit of a squeeze but just fits inside the battery box, result! It gives me an opportunity to upgrade to a 48v battery if I feel the need.
55818

The power delivery is transformed and the motor is much quieter, stronger and smoother than before, well worth the effort.
 
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