Skip to main content
Ten questions from the Battery & BMS group. Attempt all ten before checking the key. Suggested pass mark: 8/10.

​
Questions

1. The Kent Lithium Battery-to-inverter comm cable is:
  • A. A straight-through RJ45 patch lead
  • B. The labelled Kent crossover cable — CAN pins 4/5 are reversed between pack and inverter
  • C. Any CAT5 cable under 3 m
  • D. A USB-A to RJ45 adapter lead
2. The LV battery voltage window both platforms accept is:
  • A. 12–24 V DC
  • B. 24–48 V DC
  • C. 40–60 V DC
  • D. 80–120 V DC
3. BMS communication between the Kent Lithium Battery and the inverter runs over:
  • A. RS232
  • B. WiFi
  • C. Zigbee
  • D. CAN
4. Which comm cable may be used between pack and inverter?
  • A. Any tested straight cable
  • B. A field-crimped cable to the printed pinout
  • C. Only the labelled Kent F1 comm cable
  • D. The datalogger pigtail
5. A dormant pack after deep discharge is woken by:
  • A. Jump-charging from a bench supply
  • B. The inverter’s official function only — Kent G3 Battery Wakeup switch / Kent M1 Activate Bat
  • C. Briefly shorting the terminals
  • D. Holding the pack button 30 s
6. Wake-up voltage values printed in manual text should be:
  • A. Keyed in exactly as printed
  • B. Rounded to the nearest volt
  • C. Never keyed in — use the Battery Wakeup switch only and leave factory values
  • D. Used only on the Kent M1
7. For storage, the pack SOC band is:
  • A. 0–10 % — empty is safest
  • B. 30–60 % SOC
  • C. Always 100 %
  • D. Any SOC below 80 %
8. The Kent G3 Battery Healing function:
  • A. Charges the battery to 100 % from the grid without allowing discharge, restoring SOC accuracy
  • B. Balances cells by discharging to empty
  • C. Replaces faulty BMS firmware
  • D. Runs a capacity test monthly
9. Lifting or moving a pack by its cables or terminals is:
  • A. Fine for short moves
  • B. Fine with two people
  • C. Never acceptable
  • D. Required to avoid casing damage
10. End-of-life battery disposal follows:
  • A. General site waste rules
  • B. The customer’s discretion
  • C. The battery disposal rules — never general waste
  • D. Burial per local practice

​
Answer key

  1. B
  2. C
  3. D
  4. C
  5. B
  6. C
  7. B
  8. A
  9. C
  10. C