Bles31

Thanks. I’ll give it a try. It’s a nice bike but as well the battery button the plastic mount for the display has cracked under normal wear and tear (3000 miles). Just a couple of detail bits that could have been better.

No help I'm afraid - but I'll be watching carefully as a hole is just appearing in the cover of my battery button - Carrera Vulcan.

Just another thanks for the photos. I have a Vulcan - hopefully I won't be making use of the photos, but you never know!

Just a bit of feedback - yesterday my daughter turned up on the bike, which was running perfectly. Gave it 12 miles with big hills and it was fine. This morning it turned on at a push of the button! One thing I had done a couple of days ago was to give the handlebar mounted computer a night in my airing cupboard just in case it was damp inside. Sorry - left this out of my first post. Given that the bike is now working I think damp in the computer may have been the problem and that I have been picking up a leakage voltage as suggested above and interpreting the results as a battery problem . (The voltages show up in a digital meter but not on an analogue moving coil meter). It just goes to show what can happen when a mechanical engineer gets his hands on a multimeter ! We’ll see.

Thanks both. Yes Amoto, I think the Carrera bikes are ok - mine gets a bad press because of cutting out issues, but it’s never been a significant problem. Touch wood!

Thanks everyone. Useful information and some things to try.

I’m trying to sort a problem on my daughter’s ebike - a Kalkhoff Connect Xion 27. The battery seems to have failed and in checking for reasons I tried to measure charger output voltage. It gives 42v for a couple of seconds, then drops to millivolts for around four seconds then back to 42v... and this sequence carries on continuously. Am I right in thinking that the charger begins the charge process then sensing an unusual load ( multimeter rather than battery) cuts itself off as a safety feature? Or could it be a charger fault? I think the battery may be six or seven years old and may have sat unused for long periods. It is marked Derby Cycles. It functioned fine for over a hundred miles after the daughter got the bike given to her then died quite suddenly, now providing around 10 volts. Thanks for any input.

Hello there, I’ve watched this forum on and off for a while and it seems to me I should do the decent thing and register. I live in Cumbria, retired and have a Carrera Vulcan which has served me well for 2000 miles. I occasionally consider upgrading but the Vulcan keeps bashing on. My daughter is looking at Ebikes (starting with a Kalkhoff passed on by her mother) and keeps asking hard questions so I thought I’d better get more involved. Hopefully I will be able to help others as well as get help. Best wishes to you all.