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KXH Battery Test Procedure
Before you start these are the items you will need
Electrical Function Checklist
A self made short-Circuit wire (thin wire is about AWG 22)
Multimeter
Pin Diagram
BEFORE YOU PROCEDE
If you uncomfortable preforming any of the following tests consult you UBCO dealer.
Read and understand all steps of this procedure before testing the voltage of your KXH
power supply.
Testing procedure
STEP 1:
A self-made temporary short circuit wire is needed to simulate the status signal after the male
end is connected to the protection board. It is best to tin the edges with solder if using stranded
wire or use a solid gage.
Requires shorting wire loop as below.
Copyright UBCO Limited
Cut a piece of AWG 22 wire to approximately
40mm or about 1.5"
Strip the wire casing off of each end to
expose the inner copper, approximately 7mm
or about .25"
If using stranded wire, twist the ends to
ensure they don't unravel. If you have access
to a soldering iron we recommend tinning the
ends of the wire to keep the strands together,
or you could also use a solid wire.
Leave a bit of insulation to grab onto in the
middle and bend the wire in half as shown.
Commercial in Confidence

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Summary of Contents for UBCO KXH

  • Page 1 • Pin Diagram BEFORE YOU PROCEDE If you uncomfortable preforming any of the following tests consult you UBCO dealer. Read and understand all steps of this procedure before testing the voltage of your KXH power supply. Testing procedure STEP 1: A self-made temporary short circuit wire is needed to simulate the status signal after the male end is connected to the protection board.
  • Page 2 BMS switch, making the BMS enter the discharge state. This step enables output power and energizes the pins we will test to determine the voltage of the battery pack. KXH PIN DIAGRAM- BATTERY DISCHARGE SOCKET Insert the temporary wire to bridge pins 7 & 8 like shown below.
  • Page 3 Reverse them and measure again. Record your measurements. MULTIMETER PROBES IN PINS 1 & 3 Normal KXH operation, 39.2V-59V. Fault when voltage is below 32V or above 59.65V The maximum battery voltage when fully charged is 59V (58.8+/-0.2V). Anything above 59.65V indicates a fault.
  • Page 4 (-50V), it means that the positive and negative probes of your multimeter are backwards. Reverse them and measure again. Record your measurements. Normal KXH operation, 39.2V-59V. Fault when voltage is below 32V or above 59.65V The maximum battery voltage when fully charged is 59V (58.8+/-0.2V). Anything above 59.65V indicates a fault.
  • Page 5 Record your measurements. If your results indicate that there is a voltage present outside of the 12V range it could indicate that your BMS has an issue. Consult UBCO Bikes or your Authorized Dealer for support. Copyright UBCO Limited...
  • Page 6 Connect a multimeter negative (black) to No. 9 pin and connect positive (red) to No. 10 pin of the battery socket. Multimeter should measure between 1.0V-1.5V. If voltage reading shows a negative sign (-1.5V) then your multimeter probes are reversed. Copyright UBCO Limited Commercial in Confidence...
  • Page 7 Connect a multimeter negative (black) to No. 9 pin and connect positive (red) to No. 11 pin of battery socket. Multimeter should measure between 2.0V-2.5V. If voltage reading shows a negative sign (-2.5V) then your multimeter probes are reversed. Copyright UBCO Limited Commercial in Confidence...