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Li-Ion battery problem

Hi,
The truck have 48.1 V, 300Ah Li-Ion battery and the truck operates normal with this battery but when we connect it to the charger, the charger is showing error "Connect battery". also checked with another Ok charger, it also have the same status, Seems that the battery E-box/BMS is not activated via charger.
I have literature but unfortunately it is in Spanish language. Does anybody have in English?
My truck model is RRE250H, year 2019.
  • Posted 22 Jul 2023 23:15
  • By Syed
  • joined 14 May'15 - 195 messages
  • Sindh, Pakistan
swasiquehussain at gmail dot com
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Aún no resuelto.
  • Posted 24 Aug 2023 15:55
  • By Syed
  • joined 14 May'15 - 195 messages
  • Sindh, Pakistan
swasiquehussain at gmail dot com
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Pudo solucionar?
  • Posted 24 Aug 2023 13:10
  • By Ironman_93
  • joined 14 Dec'19 - 34 messages
  • Argentina
thefixerman.service@hotmail.com
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The truck model # RRE250H, serial number is 6695259 year 2019 and the battery part number is 7648723-003, serial # 6695259-BATT, also the BMS is black ( part # 7633816-001) with separately contactor attached.
The charger is from Micropower Lion 200 48/300 and showing error "connect battery" and "CAN timeout".
I have tried another same charger to charge this battery but it also give same error. Currently the battery voltage are 46.6 volt.
Tried new BMS on this battery but it is not working with the charger nor truck even the old BMS works only with that truck.
The charger has three CAN wires and found 12.3 volt between two of them which goes to the BMS after connecting the charger connector with battery and the third wire gives 12.3 volt which is receiving from BMS.
Is charger is not working due to low voltage of battery or is the BMS is faulty?
Or can any share the PDF documents
  • Posted 31 Jul 2023 19:47
  • By Syed
  • joined 14 May'15 - 195 messages
  • Sindh, Pakistan
swasiquehussain at gmail dot com
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