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Connecting the battery bank to the Kent M1: power cabling, the ferrite ring, DC protection, and the comm-cable rule that makes or breaks the Kent Lithium Battery pairing.
DANGER — a battery bank cannot be switched off at the source. Verify polarity before closing anything, keep tools insulated, and never work on terminals with the battery breaker closed.

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Before you start

  • Battery bank designed per the minimum-pack matrix below — undersized banks run the whole system at reduced current.
  • The battery interface accepts Li-ion or lead-acid, 40–60 V DC; BMS talks CAN.

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Power cabling

Kent M1 battery connection with ferrite fitting — figure KNB-M1-CR-07

  • Cable: 16 mm² (6 AWG) on the 3 kW, 35 mm² (2 AWG) on the 5 and 6 kW. Terminal torque 4 N·m. Cable OD range 11–16 mm (3 kW) / 13–18 mm (5–6 kW).
  • Ferrite ring: the accessory magnetic ring goes on the battery input line, single pass, secured with a strap.
  • Correct polarity between battery and inverter terminals — check twice, close once.

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The mandatory battery DC breaker

A DC-rated battery breaker is mandatory, sized ≥ 60 V DC and by model: ≥ 90 A (3 kW) / ≥ 160 A (5 kW) / ≥ 180 A (6 kW).

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Pairing the Kent Lithium Battery

The Kent Lithium Battery (F1 family) is confirmed compatible and recommended with the Kent M1. Minimum packs per model (charge current is the binding constraint — fewer packs than this runs at BMS-limited current, with no fault shown): If the installed bank is below the matrix, set the inverter Max charge / discharge current to packs × pack limit so the system respects the bank.
The comm cable is a 4-5 crossover — a straight RJ45 never communicates. The Kent battery RJ45 carries CAN-L on pin 4 and CAN-H on pin 5; the inverter BMS port expects CAN-H on pin 4 and CAN-L on pin 5. Use only the labelled Kent battery comm cable. Symptom of a straight cable: battery comm faults at first power-up. Field fallback: cut one end and re-terminate with pins 4 and 5 swapped, exactly as the source manual instructs for pin-sequence mismatches — never “fix” it in menus.
  • Multiple packs parallel at a DC busbar/combiner; up to 16 packs per bank, DIP/address based, one master pack’s CAN port to the inverter. Set pack addresses per the battery guide before power-up.
Pending Kent validation. [KNB-VAL-05] The exact Kent M1 on-screen battery-brand label and the F1 cable-kit contents are under confirmation. Pairing, the minimum-pack matrix and the 4-5 crossover rule are confirmed. Until published here: select the Pylon-family entry in the BMS-protocol list per the commissioning page and use only the labelled Kent comm cable.

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Lead-acid banks (where used)

Fit the supplied PT1000 temperature sensor on the battery casing — side or top, away from the posts — into the TEMP terminals, and set the lead-acid parameters (float / boost / equalization, compensation) per Settings Reference.

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Common mistakes

  • Straight LAN patch lead used as the BMS cable — guaranteed comm failure on this pairing.
  • Bank sized by kWh only, ignoring charge current — chronic derating with no alarm.
  • Ferrite ring left in the box, or looped multiple turns instead of a single pass.
  • Battery breaker skipped or AC-rated — it must be DC-rated and per-model sized.

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When to escalate