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That Bafang kit has a std 15a max rated controller. For the tandem I would opt for a KT T09S 22a controller , 48v battery and AKM hub. All KT controllers have the option to reduce current /amps out put so no need to worry about the 22a max rating as one can reduce to 11a max or anywhere between...

For my penneth worth , if one wants to be able to ride above the cut off speed easier (legally) then one needs a drive with a high internal gearing ratio and not one of the more common 5.1 gearing hub drives . For a higher gear ratio then either a Bafang G370 hub or an AKM (Aikema ) hub...

If one wants a system that has fast PAS pick up with little delay then opt for a KT controller , KT also has instant stop with no noticable run on from PAS. Take it from those of us that use them all the time from many years of use and experience , for the relative cheap cost of a no OEM...

I would second a look at the Wisper brand EAPC, hub drive or mid drive, cross bar or step thru. The bikes are well regarded and built with very good CS , the CEO David Miall of AMPS who own the brand often posts on the forum esp regarding Wisper owner issues.

Sadly many see a nice bike or are partly brained washed by reviews (very biased) , dealers (also biased) and online influencers who promote expensive looking EAPC's with mid drive or even hub drives which have no need for fancy locked in electrics Unfortunately those not in the know or...

Before trying to fault find with no idea why or what to look for, one must try and pin down the fault area. First carry out a mosfet test to see if any are faulty, if they aren't then one must test for Hall sensor failure.

Battery life depends on how they are specced to cope with the controller max discharge rating and the cells used. I have a pair of Woosh Dolphin cased Sam 29E's both coming up to 10 years old and both still work well drawing approx. 4 - 5 a, they are no longer used in EAPC use but provide...

One doesn't have to regimentally let the battery SOC go down to 35v before charging, 38 - 39v is ok to charge battery to full again simply because the charge time is much shorter . Charge depending on how you use the bike , always full charge before a longish ride where going down to 34/35v...

Typically the go to shop is topbikekit or their store on AliExpress and of course there are many other sellers on AliExp.

A EAPC can't be illegal if the thumb push/ start control can't propel the bike from a standing start , the law states it must be propelled by pedalling. Nearly all EAPC's have 6kmh walk assist that doesn't require pedalling. The law states that a EAPC must be propelled by pedalling .

It appears that water ingress may have shorted some tracks on you PCB oir damaged some of the components hence now why one is only seeing approx 10a of current at all levels.

There are two types of speed controller . Basic 3 spd crappy ones that have no change in current in any level and just have 3 levels of max speed assist . The bafang and lishui are slightly better and have varying current levels from 40 - 100% in the assist/PAS levels. If you want better...

Going back to the smaller lightweight hubs. Most folks poo -poo them simply because they know little of how to use them or pair them up with a very good control system such as the variable current controllers like the KT. I suspect nearly every person who poo- poos them has simply ridden a...

Yes will be interesting to see once I get back to cycle fitness, the silver lining as you put it d8veh is yes could prove to be a good one . It is now ten days since I was discharged from hospital and I have been eating six or seven small amounts daily to give my digestive system time to...

The sub class category for legal ebikes with twist and go start power is 250lpm which one can find on the DVLA website.

With the KT controllers they use current control, this gives the user 5 varying PAS assist levels of power so one can use minimal current /power if one want's to improve cycle fitness or simply wants to use minimal power. The speed in each PAS level remains the same , simply push harder to go...

Personally I would change out the control system and ditch the bafang speed controller, replace with a KT current control system and gain control of how much power one want's to put thru the hub . With current control one can use minmal current/power to improve rider fitness , typically...

Small lightweight motors may not be good for the heavier rider on steeper ascents but with the lower rpm winding of sub 201 I can vouch they are very capable for towing heavy loads on even terrain with modest gradients. The Bafang G370 though a front motor has proven to be a superb runner for me...

The switch would have been a BMS switch to shut off the voltage at the discharge. It sounds then that the BMS may have been replaced as one can buy BMS with or without switch oiption. All it means is one will get a contact spark every time the battery is removed and connected to the bike...

Motor cycle fed don't know the law . DVLA allow legal twist and go for bikes that comply with EAPC ruling if they have a V5 test certificate. Although EAPC ruling state no twist and go allowed as this does mean a moped in use from a standing start there is no ruling to state one can't...