GivEnergy Battery Not Discharging — Diagnostic Guide
Your GivEnergy battery shows as charged — or even full — but the house is still importing from the grid and the battery isn't powering anything. In most cases this is a configuration issue: the wrong system mode, a reserve SoC set too high, or a discharge schedule that isn't active. This guide covers every cause in order of likelihood so you can fix it without a site visit.
Jump to cause
If you've checked the obvious settings and the battery still won't discharge, the portal event log and settings history usually tells us exactly why — whether it's a mode conflict, a tariff override, or a BMS protection event. We review this remotely.
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⚡ Safety Warning
Do not open your inverter or interfere with DC cabling. Solar panels produce live DC voltage whenever exposed to light. Always use your DC isolator switch and contact a qualified solar engineer for hands-on fault diagnosis.
Charged battery, grid importing
The portal shows the battery at 80%, 90%, or even 100% SoC. But when the house needs power — in the evening, overnight, or any time solar isn't producing — the inverter draws from the grid instead of discharging the battery.
Usually a configuration issue
GivEnergy batteries don't discharge automatically in all modes. The system mode, reserve SoC setting, and active schedules all control when the battery discharges. If any of these are misconfigured — or were reset by a firmware update — the battery holds its charge unnecessarily.
Not discharging vs can't discharge
There's an important distinction: a battery that won't discharge (mode/schedule issue) vs one that can't discharge (BMS fault, hardware failure). The first is fixed in settings. The second requires a diagnostic. This guide starts with configuration — hardware faults are covered at the end.
Two checks before anything else
Confirm the basics before adjusting any settings — these catch the most common misunderstandings immediately.
Open givenergy.cloud or the GivEnergy app and check the live battery State of Charge (SoC) percentage. Then go to Settings → Battery → Reserve SoC and note the reserve value. If the battery SoC is at or below the reserve, the inverter is working correctly — it is protecting the reserve. The problem is either that the reserve is set too high (covered in Cause 2) or that the battery isn't charging properly.
In the GivEnergy app there is a pause/resume button that can temporarily suspend all battery activity. This is easy to activate accidentally. Open the app, navigate to the battery status screen, and confirm the battery status shows as Active (or similar) rather than Paused. If it shows paused, tap the button to resume. This is more common on newer app versions that have a prominent pause control on the home screen.
Wrong system mode — battery won't discharge in Eco Mode
The most common cause of a GivEnergy battery appearing not to discharge is that the system is in Eco Mode rather than Timed Discharge or a mode that actively discharges. Eco Mode uses the battery intelligently based on solar production and consumption patterns — it does not force the battery to discharge on demand.
GivEnergy system modes and how they affect discharge
The inverter manages charge and discharge automatically based on solar availability and household demand. The battery does not discharge continuously — it conserves charge for periods when solar is unavailable. Many homeowners in Eco Mode expect the battery to run the house all evening but see the house importing instead. This is the mode working as intended, not a fault. To force discharge, switch to Timed Discharge.
The inverter discharges the battery during a defined time window, down to a target SoC. This is the mode to use if you want the battery to actively power the house during peak hours. Set the window to cover your evening usage (e.g., 16:00–23:00) with a target SoC of 10–15%.
The inverter discharges the battery to the grid (not the house) during a defined window. If Timed Export is active during your evening peak, the battery discharges to the grid while the house imports from the grid — appearing as though the battery is not powering the house even though it is discharging.
How to switch to Timed Discharge
In the app: tap the inverter → Settings → System Mode. In the portal: My Inverter → Settings → System Mode.
Enter a start time and end time covering your peak usage hours (typically 16:00–23:00 for most households). Set the target discharge SoC to 10–20% — this is the minimum battery level the inverter will discharge to before stopping.
After saving, return to the settings screen and confirm the Timed Discharge window appears as active. Wait until the start of the window and check the portal to confirm the battery is discharging. Battery discharge is shown as a negative flow in the battery power reading on the portal dashboard.
Reserve SoC too high — battery won't discharge below the threshold
Every GivEnergy installation has a Reserve SoC setting — a minimum battery level that the inverter will not discharge below. This is intended to protect the battery cells from deep discharge and to maintain a power cut reserve. If this is set too high, the battery appears to stop discharging early — or barely discharges at all.
Common reserve SoC problems
What reserve SoC to set
Export First mode or discharge power limit set to zero
Two less obvious settings can cause a GivEnergy battery to appear not to discharge to the house even when the battery is full and a Timed Discharge schedule is active.
Timed Export / Export First mode
In Timed Export mode, the inverter discharges the battery to the grid at the export rate, rather than supplying house load first. During a Timed Export window your battery will show as discharging in the portal — but the house is still importing from the grid, because the battery output is being directed to the meter export clamp, not the house circuit.
Discharge power limit set too low
In Settings → Battery there is a Discharge Power Limit (sometimes labelled AC Charge Rate or Battery Power Limit — label varies by firmware). This sets the maximum rate at which the battery discharges in kilowatts. If this is set to 0 kW or 0.1 kW, the battery will appear to do nothing even when a discharge schedule is active.
Discharge schedule not active or conflicting with charge windows
Even when Timed Discharge mode is selected, the battery will only discharge if the time slot is active, the target SoC is below the current battery level, and no conflicting Timed Charge window overrides it.
In Settings → Timed Discharge, each time slot has an on/off toggle. Creating the slot and setting a time does not automatically enable it. Confirm the toggle next to the slot is switched on. Slots saved in a disabled state look correct in the settings view but have no effect.
If the discharge target SoC is set to 80% and the battery is currently at 75%, the inverter has already met the target and will not discharge further. Set the target to 10–15% so there is headroom for the battery to discharge meaningfully through the evening.
If a Timed Charge window overlaps with the Timed Discharge window, the charge instruction takes priority and the battery will charge from the grid instead of discharging. Review all active time slots in Settings → Timed Charge and Timed Discharge and ensure the windows do not overlap. A common mistake is having an afternoon Timed Charge slot from a previous configuration that was never removed.
When the battery genuinely can't discharge — not a settings issue
If you have worked through all the configuration checks above and the battery still won't discharge, there is likely a hardware or BMS fault that requires a diagnostic review. These are the signs that point beyond configuration.
Signs of a BMS or hardware fault
STORAGE_ERROR_ fault codesSmart tariff control — settings reverting
If the above checks haven't resolved the problem, we can review your monitoring history, event log, and settings remotely to identify the exact cause. Most GivEnergy battery discharge faults are resolved remotely — no site visit required.
Settings reverting or greyed out — how to identify and remove energy provider control.
Full guide to Timed Charge, Timed Discharge, Timed Export — and how schedule conflicts cause unexpected behaviour.
Why GivEnergy charge schedule or system mode keeps reverting — and which external service is causing it.
All GivEnergy fault guides, configuration pages, and services.
GivEnergy battery discharge questions
The most common cause is Eco Mode. In Eco Mode the GivEnergy inverter manages battery output intelligently based on solar and demand patterns — it doesn't force constant discharge. The battery can sit at 90% while the house pulls 200–500W from the grid because the inverter has decided not to discharge at that moment. To force the battery to power the house, switch to Timed Discharge with a window covering your peak usage hours and a target SoC of 10–15%.
If a Timed Discharge slot is active and correctly configured but the battery still won't discharge, check in this order: (1) reserve SoC — if set to 75% and battery is at 78%, it will barely discharge; (2) an overlapping Timed Charge window that overrides the discharge at the same time; (3) the discharge slot toggle — slots can look active but have the enable switch off; (4) discharge power limit under Battery Settings — check it hasn't been set to 0 kW. If all of these look correct, a remote diagnostic of your portal event log will identify the cause.
Yes — this is a Smart Tariff Lockout. If you are on Octopus Intelligent, Agile, or Flux and have connected the GivEnergy smart tariff integration, your energy provider can temporarily override discharge settings to manage grid demand. Your settings may revert after you change them, or the discharge window may appear greyed out. This is a contractual feature of those tariffs, not a fault. See our Smart Tariff Lockout guide for how to identify and manage this.
Almost certainly yes. GivEnergy firmware updates sometimes reset schedule settings and mode configurations to defaults. A common pattern: after an update, the system reverts to Eco Mode, Timed Discharge windows become inactive, or the reserve SoC resets to 50–75%. After any firmware update, go to Settings and review your system mode, all four schedule types (Timed Charge, Discharge, Export, Import), reserve SoC, and discharge power limit. Recreating your schedules after an update usually restores normal discharge behaviour.
Battery still not discharging? We'll find out why.
Tell us what you're seeing — your system mode, the portal overnight data, and what settings you've already tried. We review the monitoring history and event log and come back with a clear diagnosis, usually same day.
This is a brand-specific version of our general battery not discharging guide, which covers all brands.