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Connecting the battery bank to the Kent G3: the dual-input terminals, the per-cable current rule that forces dual cabling on the 15 kW, and the Kent Lithium Battery pairing.
DANGER — verify the battery is OFF and reads 0 V DC at the cables before connecting anything. Consult the battery guide for its shutdown procedure.

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Power cabling

Kent G3 battery terminals — figure KNB-G3-CR-05

  • Terminals: M8 screws ×4; recommended cable 2 AWG (33.62 mm²) ×4; strip 13 mm, crimp R-type lugs (do not over-crimp), torque with a torque wrench per the wire-box label.
  • BAT+ and BAT− each provide 2 inputs, max 200 A per input, ≤ 150 A recommended per cable. With 290 A max on the 15 kW model, the 15 kW must run dual cables per pole.
  • The battery fuse in the wire box is replaceable only by Kent-authorized service — never in the field.

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Pairing the Kent Lithium Battery

The Kent Lithium Battery (F1 family) is confirmed compatible and recommended with the Kent G3; on the battery-model screen, select the LV Pylon-family entry (PYLON_LV) — never the HV entry. Minimum packs per model (charge current is the binding constraint — fewer packs runs the system at BMS-limited current with no fault shown):
  • Below the matrix, set the inverter Max charge/discharge current to packs × pack limit.
  • Multiple packs parallel at a DC busbar/combiner, up to 16 packs per bank, DIP/address based; the master pack’s CAN port connects to the inverter. Keep each inverter cable at ≤ 150 A across the 2 inputs per pole — 2× F1-16080 on a Kent G3 15KW maps 1:1 onto the 2+2 terminals at ≤ 145 A per cable.
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, CAN-L on pin 5. Use only the labelled Kent battery comm cable. Symptom of a straight cable: battery CAN failure alarm at power-up. Field fallback: cut one end and re-terminate with pins 4 and 5 swapped — the source manual’s own instruction for pin-sequence mismatches. Never “fix” it in menus.
  • Route the BMS cable through COM1 or COM2 to the BMS RJ45 terminal.
  • In parallel-inverter systems, one shared battery bank is used and its BMS connects to the master inverter.

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Common mistakes

  • Single cable per pole on a 15 kW — 290 A over one 150 A-class cable cooks lugs.
  • Straight LAN patch lead as the BMS cable — guaranteed CAN failure on this pairing.
  • Bank sized by kWh only; charge current is what sets the pack count.
  • Field “repair” of the wire-box battery fuse.

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When to escalate