Search results

  1. FatBob

    Are 20x4.0" Inner Tubes OK for 20x4.25" Tyres?

    Will the slimmer inner tube still remain centred on the wheel especially going over pothole or rough ground?
  2. FatBob

    Are 20x4.0" Inner Tubes OK for 20x4.25" Tyres?

    Are 20x4.0" inner tubes OK for 20x4.25" tyres? I need to replace the rear inner tube on my bike which has Innova 5189–10 tyres.
  3. FatBob

    Battery Unsused for 7 months. Still Safe?

    As the post title says. I last charged the Samsung 36V 21Ah battery for my ebike back in March 2022 but due to illness haven't been able to ride and it totally slipped my mind. Then today reading about increasing incidents of fires caused by dendrite build up EV car batteries I suddenly...
  4. FatBob

    Capacitor-powered eBike

    Saw this fun divertimento and thought of the Li vs Pb-H2SO4 battery thread...
  5. FatBob

    Help! [Newbie] Bafang C961 Display - Walk Assist Speed

    Don't apologise :) Yes it's rear hub motor.
  6. FatBob

    Help! [Newbie] Bafang C961 Display - Walk Assist Speed

    I asked if it could be changed, not made faster. Some people have dodgy knees you know. :)
  7. FatBob

    Help! [Newbie] Bafang C961 Display - Walk Assist Speed

    The walk assist speed of my Bafang C961 display is set at 6 km/h. The advanced settings in the display allow for the overall max speed limit to be set, but obviously I don't want to change this. Is there a way however to change the walk assist speed to something other than 6 km/h?
  8. FatBob

    Help! [Newbie] Batteries in Autumn/Winter

    At the very risk of your uncompromising disdain and acid-tongued vitriol, I've never come across the phenomenon of contact burning – I'm just a lay person, not an engineer. What is this in the context of using and charging ebike batteries. Thanks.
  9. FatBob

    Help! [Newbie] Batteries in Autumn/Winter

    Yes, I've read a little and seen microscopy videos about dendrites and the nasty after-effects, i.e. explosive fires. Since I have no option but to charge indoors this is one reason I'm a little nervous about ensuring I'm not doing anything to unnecessarily put my family in danger.
  10. FatBob

    Help! [Newbie] Batteries in Autumn/Winter

    I have checked and you are all quite correct. I now have absolutely no idea whatsoever where I got the figure of 17 °C from (possibly something to do with work), but I would have sworn that's what I read! It does in fact say not to charge below 4 °C (40 °F).
  11. FatBob

    Help! [Newbie] Batteries in Autumn/Winter

    With the cooler and wetter weather approaching, I (a newbie to ebikes) was looking for some help and advice on best practice for caring for batteries. I have a bike with a Samsung Lithium-Ion 21Ah 36V 756Wh battery. The bike's user manual only says not to charge the battery below 17 °C [edit]...
  12. FatBob

    "ebike battery fire"

    Not an ebike battery fire, but an example, I guess, of charging a battery for too long. Terrifying moment hoverboard EXPLODES
  13. FatBob

    Revos kit

    This product was pitched on Dragons' Den tonight. No investment though. One dragon thought £595 was too high a retail price.
  14. FatBob

    Locks

    The results of a recent poll on here suggested most respondents use a lock when it comes to ebike security (followed by taking the battery). I'm wondering what type of lock or combination of locks most prefer: d-lock vs chain vs cable vs folding vs something else? I'm particularly interested in...
  15. FatBob

    Introduction

    Hi Fara. I visited Grenoble once, when I had to go to a conference and then on to CERN, years ago. Beautiful place from what I recall. I'm all very new to ebikes so can't really advise, however there are lot of helpful people here who hopefully can.
  16. FatBob

    Ebikes and the Unfit Very Heavy Rider - A Cautionary Tale for Newcomers

    Impressed by your distances you travel. Ever done more than 100 miles in a day? Is it normal for odometers on displays (Bafang C961 in my case) to differ from distance calculated on maps? The C961 data is consistently lower than a range of maps/apps.
  17. FatBob

    Ebikes and the Unfit Very Heavy Rider - A Cautionary Tale for Newcomers

    Don't worry, Phil, I welcome everyone's input to the thread, honestly. I'm all very new to this so the convos get on to stuff I've never heard of or thought about even if most of it goes over my head! I've had problems with my knees all my adult life, even when I was a fit slim 20-something...