Just done a mild shunt mod on my 6 MOSFET 48v controller to see if there are any gains. Indeed there are, acceleration is noticeably improved and it holds speed on the throttle a little better, and this is just from a thin tinning of solder around the middle. So to make these gains permanent I'm after a 48v 500w controller with 25a current, so far KT seems the most economical, any other options that are reasonably prived
More current wanted, best/cheapest controller with LCD?
- Thread starter anon4
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I'm not aware of any other brands that are in the budget range you require. You may find some that appear different, like the range BMS Battery sell, but these are rebranded KT's. Infineon are a solid brand, but prob. more than you are willing to pay. This one will run upto 72v
https://em3ev.com/shop/6-fet-irfb4110-infineon-controller/
https://em3ev.com/shop/6-fet-irfb4110-infineon-controller/
KT it is then, can get a 9 MOSFET 25a one with kt LCD 3 for less than 50 quid on AliExpressI'm not aware of any other brands that are in the budget range you require. You may find some that appear different, like the range BMS Battery sell, but these are rebranded KT's. Infineon are a solid brand, but prob. more than you are willing to pay. This one will run upto 72v
https://em3ev.com/shop/6-fet-irfb4110-infineon-controller/
Yeah, there's nothing to beat the KT's for value really. You've caught the power bug haven't you anon4, well done!!
You'll be on 72v before you know it. Be interested to see how much power that Suntour hub will take before it melts, be carefulIt still barely gets warm, it seems pretty robust. Besides it's an excuse to upgrade if it catches fire lolYeah, there's nothing to beat the KT's for value really. You've caught the power bug haven't you anon4, well done!!
OK, thanks AK, I've seen 9 fet KT controllers advertised as sine wave, hence the question. Maybe they're not then.
Don't believe everything you read on Chinese e-commerce sites
d8veh explained in an old post when I was starting out the physics behind needing an even number.
No, don't worry, I don'tDon't believe everything you read on Chinese e-commerce sites
, even without understanding the physics, it makes sense to need even numbers.
If pics listed with said controllers are of the actual controller sine wave (sensored ) ones can be defined by having hall wires present.
This one says it is 9fet 25a KT sinewave model & dual voltage, it certainly has a 6 wire hall block using the std DJ7061 connector.
https://www.ebay.co.uk/itm/Ebike-Brushless-Controller-36V-48v-500W-9-Mosfet-KT-Sine-Wave-Controller/253946414941?hash=item3b2062c75d:g:9pMAAOSwI9FcF1Fo:rk:27:pf:0
I need to change my small dual volt 20a 6 fet KT one as it suffers from thermal cut out esp during warmer weather.
https://www.ebay.co.uk/itm/Ebike-Brushless-Controller-36V-48v-500W-9-Mosfet-KT-Sine-Wave-Controller/253946414941?hash=item3b2062c75d:g:9pMAAOSwI9FcF1Fo:rk:27:pf:0
I need to change my small dual volt 20a 6 fet KT one as it suffers from thermal cut out esp during warmer weather.
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Another KT dual voltage 9 fet s/w this one with Julets.
https://www.aliexpress.com/item/36V-48V22A-Electric-bicycle-standard-sinewave-controller-Light-function-water-tightness-cable-KT-Series-500W-conversion/32857864688.html?spm=a2g0s.8937460.0.0.816c2e0eclx0Ko
https://www.aliexpress.com/item/36V-48V22A-Electric-bicycle-standard-sinewave-controller-Light-function-water-tightness-cable-KT-Series-500W-conversion/32857864688.html?spm=a2g0s.8937460.0.0.816c2e0eclx0Ko
Ok so I definitely need a KT controller as they limit current rather than speed with the pas settings. The shunt mod has murdered the battery life, probably robbed it of 8 miles, Pas levels have little effect as it's mostly speed limited, amps are only reduced on impractically low settings. Mind it's hilly and often windy here