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IBM ??? Unless you're a child of the 1970/80's, you won't know what that stands for either! As for AndyBikes recomended ebike: When the battery alone blows the OP's budget, you'd think they'd at least include some pedals... Oh, but of course, it's German... or at least pretending to be. The...

Just search the forum: IIRC there's a couple of cases that are especially well documented.

IMHO you got it right. The charger is correctly and continually attempting to start the battery but not succeeding, so we know the charger is working. You're getting nothing on the SOC reading, but we know the BMS LED's are working because the SOH also works correctly from the pattern of LEDs...

In your other post, you suggested the controller wasn't applying the power correctly either and suspected Halfords might have fitted the wrong replacement controller. So your new controller doesn't apply power in the same way as your old controller, and the bike now doesn't achieve 15.5mph as...

On the old batteries, it was a quick button press for SOC. Long press for SOH. If you're getting nothing with a quick press, it suggests the voltage has fallen to a very low maybe unrecoverable state. On the old batteries, the charger would ramp up voltage briefly to first test the battery...

What you're reading is SOH. SOH on Page 8 (state of health) is an assessment on how many charge and discharge cycles you've done to give an indication of how much life (not charge) is left in the cells. 80% shows your battery is partially worn but not totally knackered. SOC on Page 15 (state...

SOH is different to SOC. What about the SOC on page 15?

The pic in post #25 is the original charger port for a late model Vengeance. Buyers kept breaking the tiny plug pins, so Suntour concocted the adaptor in post #12 to allow charging through the discharge port. I'd suggest the OP re-reads his manual here regarding checking the battery. If still...

And the BMS spec too apparently. I did check. The maker says mine will take a 4A charge rate. I think it's only Bosch that offers a 6A charger as an option? The point is you want to be out cycling not sitting in a cafe/pub all afternoon still waiting for your batteries to charge, so if a...

Yeah, I hear what you're saying. The theory sounds plausible (as it did to me), but I actually tried it and it didn't work... at least not well enough IMHO. Even doubling up solar and battery storage it's a marginal argument. There's also internal van space sacrificed, and a lot of extra...

The reality is it doesn't work. This topic has been discussed to death on previous threads. I tried a 100w panel on my VW Transporter, 100Ah battery, inverter and all the other guff. Even with strong sun, it's nowhere near enough in UK climes. A 100Ah vehicle/leisure battery gives you 1 and a...

You can buy e-bike chargers that run directly from a 12v vehicle/leisure battery. The bike battery still sucks a lot of 12v juice per bike charge, so unless you're using a decent solar array, occasional hook-up, or driving a lot of miles inbetween bike charges, you'll sap your vehicle...

No, it's dead centre over the axle (give 1cm). I've had 20kg on there. The saddle-bag probably deceives. Furo says "modifiable speed limit". Although that would make it not-legal (if you care), did you at least try it out? Gearing is always a little on the low side on all the folders I've...

Like most e-bike manufacturers, my guess is Fiido are having trouble keeping up with demand. Fiido now have their own distribution warehouses in UK, EU, 2 in America, and a very new one in Dubai. They had worldwide launches of three other new models this year (D21, M21, X) - one went out of...

Unusually for Fiido (i.e. without any advance warning or indiegogo funding) Fiido have launched their T1 Cargo Bike... although it seems only in the US so far (30/12/21). It's clearly a blatant copy of the Radrunner - much praised for it's versatile cargo carrying abilities. Fiido have lowered...

I don't know for sure, but I don't think so. You'd likely need to change the controller too. I don't think that's true either. The M1 is 250w 36v motor intended specifically for the UK/EU market. M1 Pro is a 500w 48v motor mostly aimed at the US market. AFAIK it's the M21 with torque sensor...

I bought mine direct from Fiido here. Fiido store and ship from their own UK warehouse. Note they add 8% shipping and charge in US$ but it still works out at about £800, and you're sure of warranty parts and repairs. There are a couple of UK dealers too, Vive Scooters & Markshop in London are...

Halfords say the Crosscity has "Maximum Rider Weight Including Luggage: 100kg", but I'm sure that's more a geneal guideline. On my Fiido D11 I've had more than 125kg - it's fine. I'd think any of the options you've considered will comfortably do what you need to do. On Fiido's style, there's...

And that's why I bought a Fiido D11: The longer range removable 11.6Ah battery is in the seatpost. The rack sits forward too, over the axle. The total weight is 17.5kg (13kg with the seatpost battery removed) which is much the same as an electric Brompton - although still 2.5kg more than your...

Then that is your problem - something isn't connected properly. If ultimately you're trying to build a battery for an e-bike, Neal's advice is the way to go - an external BMS and a standard £20 42v charger. The SKYRC B6 can't handle 10s.