> ## Documentation Index
> Fetch the complete documentation index at: https://learning.kent.co.in/llms.txt
> Use this file to discover all available pages before exploring further.

# Battery Not Discharging: Full Bank, Site Imports from Grid

> Battery holds charge but the inverter buys from grid instead of discharging — mode, thresholds, sensing, and TOU triage for Kent hybrid sites.

Your goal is to confirm the inverter has permission to discharge and can see the site load correctly. Work through the checks in order — most "won't discharge" calls are a reserve setting, a mode, or a TOU window doing exactly what it was configured to do.

**Symptom:** the battery holds charge but never supports the load — the site imports from the grid with a full bank, day after day.

## Check first

1. **Mode and thresholds** — open the platform's settings page. A reserve target or a hold mode is the first thing to rule out before any deeper diagnosis.
2. **Is the sensing right?** If the CT or meter is misread, the inverter doesn't know the house has a load to cover. Run the [Energy-Flow Test](/ct-meter/energy-flow-test) direction check.
3. **Is SOC live and updating?** Comms down can freeze the inverter's discharge decisions — verify the SOC figure is changing.

## Causes

| Cause                                      | How to confirm                                                                                                                | Fix                                                                                                            |
| ------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- |
| Reserve or hold threshold reached          | **Kent G3:** SOC sits exactly at *Battery reserve* (default 80%) on-grid · **Kent M1:** *Back Up* mode holding its SOC target | Working as designed — adjust the design values per the platform settings page if the customer's intent differs |
| TOU window says idle or charge             | Slot table on the platform settings page vs the inverter's own clock                                                          | Correct the TOU windows or the RTC time per the platform settings page                                         |
| Low-SOC cut-off reached                    | SOC at or below the platform's overdischarge or shutdown threshold                                                            | Legitimate protection — let the bank recharge; revisit the reserve settings for backup-priority homes          |
| Sensing wrong — inverter blind to the load | Direction test fails; load reads 0 W or signs are flipped                                                                     | Fix per [Wrong-CT Symptoms](/ct-meter/wrong-ct-symptoms), then re-test discharge                               |
| Kent G3 ECO standby                        | PV under 100 W **and** SOC below the overdischarge point; unit in grid-standby                                                | Design behaviour — the pack recharges from grid or PV first before discharging                                 |
| Discharge capped by the battery bank       | Discharge flatlines at (pack count × per-pack discharge limit) under large loads                                              | Design behaviour — check the pack count against the pairing matrix                                             |
| BMS comms down                             | SOC frozen; a comm alarm is present on the display                                                                            | Follow the [Comm Fault](/troubleshooting/comm-fault) flow                                                      |

<Note>
  **"Inverter buys from grid with a full battery"** is the highest-repeat complaint on hybrid sites. Walk mode → TOU → reserve → sensing in that order, demonstrate the corrected behaviour to the customer before you leave, and confirm the discharge is working on the display.
</Note>

## Escalate when

* Configuration is verified correct, the sensing test passes, and the battery still never discharges — collect the settings snapshot and SOC/voltage readings and send to Kent service.
* Discharge stops far above any configured threshold with BMS comms confirmed healthy.

<Note>
  **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.
</Note>

## Related pages

* [Not Charging / Not Discharging](/battery/not-charging-discharging)
* [Energy-Flow Test](/ct-meter/energy-flow-test)
* [Wrong-CT Symptoms](/ct-meter/wrong-ct-symptoms)
* [Kent M1 Settings Reference](/m1/settings-reference)
* [Kent G3 Settings Reference](/g3/settings-reference)
* [When to Escalate](/troubleshooting/when-to-escalate)