TFL e-bike ban

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Jenkins

Legendary Member
Location
Felixstowe
But that's not what they've done and it'd be even easier to ban all lithium batteries over a size, which would reduce fire risk further.
How do you tell what size (power/capacity) a battery is just by looking at it?
And don't say they have to have a sticker showing the power output or capacity because, as already noted, it's simple just to get a 'legal' sticker on Ebay.
...
How is this any different to the person whose e-bike is deemed a fire risk? If left unchallenged, they could lock it up at the departure station (note that they announced a travel ban, not a ban on parking at TfL stations, which seems absurd when both fires mentioned were both on platforms not trains) where it can catch fire unobserved by its owner (one of the fire alarms was raised by the owner... not sure about the other).
Which is more dangerous - a fire on an ebike in the open air on a platform or a fire on an ebike in an enclosed train? Theo one at Rayners Lane happened just as the owner was waiting to board a train.

Edit - just seen these points have already been made by others.
 

TomDW

Well-Known Member
A bit of background to this policy that people discussing should know: The TFL Cycle Policy.
There are already loads of cycle restrictions to summarise. I rarely see bikes on services I use, it's mostly evenings on the Overground if at all. This is not going to stop most people getting to work as they're banned around commuting times.
 
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mjr

Comfy armchair to one person & a plank to the next
The updated https://content.tfl.gov.uk/tfl-conditions-of-carriage.pdf has been published at last. The new rule is a bit strange:
9.6 You cannot take a non-folding electric bicycle, an electric scooter or electric unicycle on our bus, Tube, Tram, DLR, London Overground, Elizabeth line and London Cable Car services. Non-folding electric bicycles cannot be taken beyond the gateline at any of our rail stations.
So, they have addressed the fire problem that has really happened, by banning e-bikes from platforms, but for some reason, electric scooters and unicycles (those hoverwheel things) are still allowed onto platforms even though they can't be taken on services. That's odd.

TfL's rule includes "London Overground, Elizabeth line" but those are both subject to the National Rail Conditions of Travel, and that hasn't been updated, so e-bikes are still not listed as "Items only permitted at the discretion of individual Train Companies" or "Items that are not permitted to be carried on passenger trains" and there is no mention of any restrictions on e-bikes on https://www.nationalrail.co.uk/cyclists so those routes might get challenged early on.

Cycling charity "Wheels for Wellbeing" has called on TfL to extend its existing mobility aid permit scheme to e-bikes. TfL Non-Folding e-Bike Ban On Public Transport: WfW Position Statement – https://wheelsforwellbeing.org.uk/t...n-on-public-transport-wfw-position-statement/

TfL still haven't published their "comprehensive" review so we don't know whether they even considered any of the above before suddenly changing their rules and hindering e-bike users.
 

TomDW

Well-Known Member
E-bike users, how do you sleep at night ?
Record Escooter & Ebike fires in London

Caveat, this is a bit emotive, but I'm just fed up with the no. of illegal bikes/scooters in London. Dangerous to individuals & public because they're going way over 20mph.
 

mjr

Comfy armchair to one person & a plank to the next
The trouble with these stats is they are not recording how many of these fires are as a result of illegal bikes, modified (but perhaps still legal bikes) or user error. As with any accident the actual cause and full details need to be recorded.
Need to be recorded to fix the problem. Not needed to continue the witchhunt. Organisations led by old farts in limos are fine with demonising all e-bikes.
 

ktmbiker58

Senior Member
The big issue that won't get addressed is ensuring e-bikes/e-bike products that come into the UK are checked for compliance with a set of standards that are in place to ensure the safety of these things.

The following is for the geeks/nerds :- ^_^

AS a retired electronics engineer (nerd) I have been asked by a couple of local shops to 'have a look' at a number of batteries from e-bikes/e-scooters, the ones I investigated used the standard 18650 lithium cell (often used in vape devices) which is a nominal 3.6V 3Ahr cell, these are arranged with groups of typically 5 cells in parallel (to give 15Ahr) and 10 groups in series to give 36V. (that would give a 540Whr battery)

Since the state of charge of the cells tends to diverge with use and the passage of time there should be a battery management system (BMS) that keeps the cells balanced. On some systems, particularly those with high charge rates, this requires the BMS to tell the charger to reduce the charging current so that it can perform a balance which is why it is essential to use the charger designed for the battery pack and not some generic item. The BMS circuitry is enclosed with the cells in the battery case as it requires connections to every group of cells in the series chain.

The regulations for transporting these batteries (UN38.3) includes a rigorous set of tests including; extreme temperature, low pressure, vibration, shock, crushing, short circuiting.

The reputable lithium cell manufacturers take safety very seriously, I saw a test procedure by a lithium cell manufacturer that including shooting it without it catching fire!

What I found in the battery packs that I looked at basically boiled down to poor design and construction, lack of any BMS in one pack, total lack of basic electrical safety devices such as over current cutout, no thermal monitoring and unbranded cells. I cannot believe these would've satisfied the regulations for transporting.

In contrast there was one pack that I repaired a broken connector on (broken by the user) that used Panasonic cells, had a BMS installed that included temperature sensors, had a built in current monitor and isolator and was beautifully engineered.

In theory an e-bike battery designed to meet the current safety requirements should be just as safe as any of the myriad of devices using lithium cells - the problem is no one is going to bother checking the stuff that is imported and users often aren't aware of how dangerous it can be to use an aftermarket charger.

End of nerd session!
 

TheDoctor

Noble and true, with a heart of steel
Moderator
Location
The TerrorVortex
E-bike users, how do you sleep at night ?
Record Escooter & Ebike fires in London

Caveat, this is a bit emotive, but I'm just fed up with the no. of illegal bikes/scooters in London. Dangerous to individuals & public because they're going way over 20mph.

By not using illegal ebikes.
And by not being judgemental about things I know little about. I'm fed up with simplistic generalisation about ebikes.
 
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