Yesterday I lost output from my 9ah bottle battery. If I take the bottle off the bike and turn it upside down ( as I did to test the output) I get volts. As soon as it is turn up the right way I lose all output. You can "feel" something move. So I have contacted Cyclotricity and will see what they say. Bike is just under the 1 year warranty period. I'll let you know how I get on with cyclotricity. Meanwhile does anyone know the likely problem. Also I would be Kean to replace this style of battery with one that clips into place but doesn't need the power feed from the controller to be inserted and screwed up ech time the battery bottle is removed, ie a battery that has the connection cable "hardwired" into its holder.
Failed cyclotricity battery
- Thread starter bigbadal
- Start date
Until it is opened to diagnose then its really impossible to say, could be a wire issue causing a bad contact
Re changing battery any of the usb or bottle batteries should work as they all come with a cradle fitment which you can hard wire to or come with the power supply leads pre wired already to connect to the controller.
Re changing battery any of the usb or bottle batteries should work as they all come with a cradle fitment which you can hard wire to or come with the power supply leads pre wired already to connect to the controller.
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Ok - thanks Neal. I've had a reply back from cyclotricity asking for output readings with the battery fully charged when switched on and switched off. I am not sure what use that info is - switched off reads zero as you'd expect. Switched on was showing 31.3. Any way, I decided to open the bottle up - there is a tech FAQ on here posted by D8veh that gives great info how to get into the unit, so having got the batterys out I was able to do some testing and ultimately traced the fault back to this.. (see pic) The main black wire going down to the connection pins had broken at the joint on the top end of the battery. It was hidden by the black wire next to it. So that is now soldered back in place and the bottle is reassembled and back on the bike. All tested good and ready for another weekly commute of 130 miles. I'll let cyclotricity know. The sheer demand of the commute the bike is doing has obviously made the joint give up, I hope my soldering is good enough to hold it in place - only time will tell. Anyway - just wanted to say thanks to D8veh for the bottle battery strip down post. I couldn't have taken the battery pack out of the case without it.
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Good that all is well again. I wasn't 100% sure of the cause but suspected a broken wire/ false contact was being made.
Hi. I am new to ebikes and recently bought a used Giant bike that had been converted to an ebike. All was going well until a couple of weeks later when I had the same problem as bigbadel (the same connection). I re-soldered but it keeps giving way after cycling around 2.5 miles on de-restricted mode. There are no markings on the conversion kit to say what make it is so am in the dark. I am guessing too much current is being drawn and suspect the battery but not sure how to check. Any ideas would be appreciated.