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Backup disappointment is almost always an expectations failure set at sale or at handover. This page is the honest version — use it to set the right picture before the first outage, not after. Tell it straight, leave the Backup Can & Can’t figure on the wall, and the phone stays quiet.
This page applies to both the Kent M1 Hybrid Inverter and the Kent G3 Hybrid Inverter. Read the correct platform section for the system you are handing over.

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What backup does

In a power cut, the inverter carries the essential circuits from battery — plus PV if the sun is still up — sized so that lights, fans, router, TV, and phone charging ride through the evening. A well-configured system proves this with the black-start test at commissioning; that test result, not a quoted number, is the honest promise.
Prove it with the black-start test before you promise anything. A passed test is worth more than any kWh figure.

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What backup can carry — per platform

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Kent M1 Hybrid Inverter

Size the essential panel to the model’s rated (running) power. The table below shows the maximum apparent power and current the backup port can continuously supply per model.
ModelBackup max apparent powerBackup max current
Kent M1 3 kW3 300 VA15 A
Kent M1 5 kW5 500 VA25 A
Kent M1 6 kW6 600 VA30 A
No motor-start headroom is promised on the Kent M1. [KNB-VAL-02] The source manual publishes no surge or locked-rotor current figure for the backup port. Size Kent M1 backup to rated (running) power only — make no promises about compressor or pump starts until Kent publishes a validated figure.
Transfer-time figure under confirmation. [KNB-VAL-03] The Kent M1 transfer-time figure is under bench confirmation. Promise “essential loads ride through” — demonstrated by the black-start test — not milliseconds.

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Kent G3 Hybrid Inverter

The G3 backup port carries rated power continuously, with a manual-anchored overload capability of 2× rated power for 10 seconds, and a transfer time under 10 ms. With unbalanced output enabled, each phase carries at most 50 % of the rated total — a three-phase machine is not a single-phase machine in disguise. A 10 kW G3 with unbalanced output on delivers at most 5 kW per phase.
Per-phase figures need care. [KNB-VAL-06] Do not quote a per-phase figure beyond 100 % of the per-phase rating until Kent confirms the unbalanced-output limit for each model. On three-phase homes with lopsided wiring, one phase hits its ceiling first.

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What stays off backup

Keep the heavy list grid-side always — no exceptions at handover or in daily use:

Always grid-only

Air conditioners · Geysers and water heaters · Ovens and induction hobs · Washing machines and dryers

Also grid-only

Large motors and pumps beyond the design load · EV charging · Welding equipment · Any load not explicitly designed into the essential panel
The full sorting logic — which circuit goes where and why — is at Essential Loads.

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Say it to the customer like this

  • “Backup runs the essentials — lights, fans, internet, TV — for hours. It is not the whole house.”
  • “If backup ever trips, something too big was switched on. Switch it off and backup returns.”
  • “Adding backup circuits later is a Kent job, not a local electrician’s shortcut.”

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Common mistakes

Selling whole-house backup

A system sized for essentials cannot run the whole house. Saying it can sets up the first outage as a complaint.

Quoting milliseconds on the Kent M1

The transfer time is under confirmation. “Essentials ride through” — demonstrated by the black-start test — is the correct promise.

Demo AC on backup

Letting an AC onto backup “just once” during the handover demo teaches the customer a habit the system cannot sustain.

Ignoring per-phase on the G3

Three-phase homes with essentials all wired on one phase hit the per-phase ceiling at half the total promise.

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When to escalate

Escalate to Kent New Energy service only — through your registered Kent partner channel or the Kent service desk details on your work order. Do not contact any third-party or component-manufacturer support line for a Kent-branded system: tickets outside the Kent channel are not tracked, not covered, and can void warranty handling.