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hi.i have a 15ah 52v samsung 30Q battery on my bbshd. In the programming The low voltage cut out was set to 41v. Electron cycles assured me this still wouldnt harm the battery even tho its lower than a more usual 45v for a 52v batt. Anyway 1500 miles of use so far. When The voltage shows around...

just buy a bafang bbshd and the biggest capacity 52v battery with good quality high current cells. ITS the best everything else is inferior.

Yes i believe now its the firmware thats making seeming higher performance changes even safe ones, not actually write. My original 2016 controller worked great 'out of the box' the 2018 replacement was dire left as was.

Hi peter,Im one of those people that like to know HOW things work rather than just be content that they do. Ive tried watts its the same. Im just on a mission to understand programming better and learn whether this FIRMWARE is such that most tinkering just doesnt work. Im happy with the bikes...

its worth mentioning ive bought a few times off ALIEXPRESS and the item has arrived in a week. once i bought two kt controllers at the same time from a uk seller and aliexpress.the ali one arrived 8 days ,the uk seller 7 days. and that was their standard free postage.

yes will do tomoro. Im happy with the bikes performance. Just dont seem to see any performance improvements from making changes,even dramatic ones, from a basic set up.

i know it was a haul to read but i tried to get in all relevent data .seriously not a dicky of an opinion from anyone? maybe its time to move it to ES....

I have a 350w 20 amps bbs01b.controller from 2018,firmware V2.2.1.1 Since getting a 850c display a cpl weeks ago which shows AMPS, Ive been playing around with changing settings. What im seeing in practice tho makes no sense.Its as if the controller has hard coded parameters.Whatever i do to...

lol book in one hand, throttle in t'other,an a mug of brown ale in a handlebar cup holder...do it!

follow vfr s advice he has more experience on these matters

yeah its awesome,has volts too unlike my old one that just had a super innaccurate battery symbol.£49 quid compared to about £80 in the uk. i dont know how compatible tho as made for bafang bbsxx kits.has juliot connection. im sure they used on other kits.hopefully some others can advise on...

oh dear looks like a new display if its the buttons themselves and not a wire repair job.nowhere selling just the button unit. whats the bike kit it may be able to use the latest version 850c colour display,with amps/watts function. i bought one recently from ali express free postage.worked out...

thanks peter ill try this out.might as well use the two lower PAS slots for something.

thanks guys ,so youve never had any issues with pairing low motor speed with high current. you both mention using this for climbing.what i understood was high current with high motor speed AND lower gears were essential for keeping the mosfets happy when climbing. i was thinking more of using...

im generally happy with the bbs01 350w PAS set up. 5 levels (100% Keep Current). i only really use PAS4 80% current 80% motor speed. hills PAS5 100% both (low gear of course). the only time i use 3 ,70% both is when im low on battery or im on bumpy ground and 4 is too fast. recently ive thought...

Yes ive noticed putting the bike in higher gear causes higher amps draw on both PAS and throttle,as does climbing hills. the steepest hills yesterday was pulling 19-20amps on 2/3rd from bottom gear.soon as i dropped to bottom gear and/or pedaled harder the amps dropped off a few. Regarding the...

thats very interesting i didnt know that. Well now ive finally got a display that shows the current ,seeing the amps drop right down with no loss of speed or increased effort needed im very happy with it again. ive also upped to the full 20 amps and thats definately helping when the controller...

annoying init bafang give miles of unnecessary cable length.you would think they would measure the typical motor to handlebar distance by either route and not some theoretical mounting position ten feet behind the bike.

im not seeing full current even at very low cadence.just going lower still at high cadence as designed to. if it was working as we understand it you should get the full amps for the PAS level selected when peddling very slowly, whatever the KC .and at 100% KC it shouldnt drop even if you spin...

thats a lovely neat conversion vfr you wouldnt even know it was electric,cool