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  1. J

    Battery at 50% yet power is switching off

    Firstly just wanted to say a big thank you to everyone who's been helping me out with this. So update this morning. Battery indicator was showing full on ride to school this morning and power cut out just before we arrived. Voltage was about 37v using PAS 3. So on ride home I tried PAS 2 and...
  2. J

    Battery at 50% yet power is switching off

    So a little update. Used the bike today after I'd set C12 to 0 and when riding home just now voltage was at about 37.2v and no cut off. Also battery display is still showing as full. I upped PAS to 4 then 5 and voltage dropped to 36.6v and no cut out. Will see how this goes but seems that maybe...
  3. J

    Battery at 50% yet power is switching off

    I tested the voltage after a full charge with digital voltmeter. I will double check as it might have been 42v and I mistyped. I use the bike daily to take my son to school so since last full charge last night I'm using PAS 3 so will need charging either Mon/Tue unless some of the C setting...
  4. J

    Battery at 50% yet power is switching off

    I'll give it a go and see what happens. I guess if it cuts out at 35.5v and not 37.5v this could indicate the controller is viewing this as a 48v battery not a 36v battery.
  5. J

    Battery at 50% yet power is switching off

    I've checked and C12 is set to 4 which is default setting.
  6. J

    Battery at 50% yet power is switching off

    Thanks. I've contacted the ebay seller so will see if they respond. I've also checked and P5 was set to 15, so I've changed that to 12. Will see how it performs. My gut feeling is that there is a setting in the KT4 that is cutting out at below 37.5v. Even when on PAS1 and it gets to about 37.5...
  7. J

    Battery at 50% yet power is switching off

    I'll contact ebay seller and see what they say
  8. J

    Battery at 50% yet power is switching off

    I did wonder about that but how do I set my controller to 36v?
  9. J

    Battery at 50% yet power is switching off

    Hi Nealh, So I've been running the bike since last full charge at PAS of 2. Today the bike got down to 50% after 16 miles and then cut out. Voltage was at 37.5 on the KT4 display and when I checked with a multimeter, also 37.5 So I've got a lot more distance (which makes sense as using the...
  10. J

    Battery at 50% yet power is switching off

    Thank you very much for this. I'll give it a go. The battery is on charge atm, so will have to wait until it's at 50% again. This is the link to the battery: https://www.ebay.co.uk/itm/313742766090 I might try checking the battery cells if I get a chance to see if there is a bad cell. other...
  11. J

    Battery at 50% yet power is switching off

    So I 've a Gtech hybrid bike. the battery died on me early this year and was uneconomical to repair. I went down the route of a KT controller, PAS, ebrakes and a bottle battery. All setup and working fine. 48V 36V 15A KT Controller For 250W 350W Electric Bicycle KT LCD4 Display This is the...