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Setup guide · GivEnergy Hybrid and AIO

How to restart a GivEnergy battery

A battery-only restart clears BMS communication faults, resets stuck SoC readings, and resolves LED fault conditions — without a full system power-down. Covers Gen 2, Gen 3, and AIO systems.
Free remote diagnostic · pay only if we fix it — from £75 if remediable remotely
Need a full system restart?GivEnergy setup hub
  • Hybrid Gen 2, Gen 3 and AIO covered
  • No tools or isolator switches needed
  • Settings are not affected by a battery restart
Battery fault not clearing after restart?

If a fault code or battery issue reappears within minutes of a restart, the underlying cause needs diagnosing. We can read your event log and live data remotely — usually faster than GivEnergy support queues.

Book your free remote diagnosticCAN communication fault guide

Not affiliated with GivEnergy Ltd. Independent diagnostic support.

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When my GivEnergy system had an issue, I was completely left without support and had honestly lost all hope. Thankfully, I searched online and found Ron, which completely turned things around. After sending him a message, he responded incredibly fast and called me to assure me that he would get the problem fixed. I really admire his dedicated, supportive nature and his determination to find a solution. With this kind of outstanding attitude and customer service, he has absolutely secured a future customer in me.

Sree · May 2026

I reached on behalf of a friend, who had lost control of their battery following a storm. A couple giv energy “dealers” had attempted and said different fixes. None worked. Solar tech support solved it remotely on the first attempt almost instantly. Genuinely a 10/10 service.

Will Jay · Jun 2026 Google

Ron was really helpful. He remotely adjusted my battery settings on the same day I contacted him, and at a reasonable price. Great service.

Jackie Palman · Jun 2026 Google

Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them

Dennis Brown · May 2026

I have a GivEnergy system consisting of two batteries, two inverters and a controlling EMS (Energy Management System) which has not worked since Nov 2025. After six months I discovered Solar Tech Support, reached out to them and Ron phoned me back – how often do you get that service? Could not be more helpful – worked directly with me over the phone, outside what I would call normal working hours. Lucid explanations and we were able to discuss the issues and history using camera and email history. As this was a very rare setup, Ron was able to access an EMS expert in the field to confirm the solution. One sunny day in, I am now only paying for standing charge and a few pence for spikes in grid consumption while battery catches up with house demand.

Ian · May 2026

Our SolarEdge PV system with LG batteries had its first hiccup after 8 years of hard work. The Inverter failed. Fortunately I found Solar-Tech-Support who diagnosed the problem very quickly, ordered a replacement unit and fitted it shortly after we received the unit from SolarEdge. Very thorough and professional approach. Thank you, a solid 5 star recommendation.

Les Bennett · Jun 2026 Google
CAN comm fault Full restart Battery restart Calibration Battery not charging Battery not discharging Red light flashing Fault codes →
When to restart
When

Battery restart vs full system restart

A battery-only restart is quicker and less disruptive — no isolators to touch, no interruption to solar generation. Use it first. Only escalate to a full system restart if the battery-only restart doesn't resolve the issue.

Try battery restart first for

→Flashing red or amber battery LED
→Battery SoC stuck at 0% or an incorrect value
→CAN communication fault on the inverter display
→Battery not charging or discharging despite correct settings
→Battery appeared to turn itself off unexpectedly

Escalate to full system restart if

→Battery restart resolves the fault but it reappears within minutes
→Inverter display is frozen or blank
→Portal is offline and WiFi reconnect hasn't helped
→GivEnergy support has directed you to do a full restart
→Battery won't respond to the on/off button at all
Hybrid — Gen 2 & Gen 3
Hybrid

Battery restart — GivEnergy Hybrid (Gen 2 and Gen 3)

On Hybrid systems the battery unit is separate from the inverter. The on/off button is on the front or side of the battery enclosure.

Battery restart steps

1
Press and hold the battery on/off button to shut it down

Locate the on/off button on the GivEnergy battery unit — usually on the front panel or right-hand side. Press and hold for 3–5 seconds until you hear a beep and all LED indicators go out. The battery is now off. Do not proceed until all lights have extinguished.

2
Wait 30 seconds

Allow 30 seconds for the BMS capacitors to discharge fully. This ensures a clean restart rather than just a brief power interruption. The inverter will report battery communication loss during this period — this is expected.

3
Press and hold to power the battery back on

Press and hold the same button until you hear a beep and the LEDs illuminate. On Gen 2 and Gen 3 batteries, the LEDs will cycle through a startup sequence before settling on the current SoC indication. This takes up to 60 seconds.

4
Wait 2–3 minutes then check the portal

The battery reconnects to the inverter over the CAN bus. Allow 2–3 minutes, then check MyGivEnergy — the battery SoC should update and any previous communication fault should clear. If the fault code reappears within 5 minutes, move to a full system restart.

Gen 3 note: Some Gen 3 battery units have a slightly longer startup sequence — LEDs may cycle through colours for up to 90 seconds before settling. This is normal. Do not press the button again during startup.
AIO System
AIO

Battery restart — GivEnergy AIO (All-in-One)

On the AIO, the battery is integrated inside the combined unit. The shutdown button is the large blue GivEnergy button on the front; the startup button is the smaller button to the right of the DC cover.

AIO battery restart steps

1
Press and hold the blue GivEnergy button to shut down

The large blue button is on the front face of the AIO unit. Press and hold for approximately 5 seconds until you hear audible clicks and the unit goes quiet. The front indicator light will go out. The AIO is now in standby.

2
Wait 30–60 seconds

Allow at least 30 seconds — 60 seconds is preferable for a complete BMS reset. The AIO may make occasional quiet sounds as internal relays settle; this is normal.

3
Press the small startup button to restart

The startup button is the small button to the right of the DC cover (not the large blue button). Press and hold until the front indicator light appears. The AIO will begin its startup sequence — do not press any buttons during this process.

4
Allow 5 minutes for full restart

The AIO takes longer than a standalone battery to complete its startup — the inverter and BMS initialise together. Allow up to 5 minutes before checking MyGivEnergy. The portal will show offline during startup; this is expected and resolves automatically.

Troubleshooting
Troubleshooting

Battery won't turn back on — what to check

If the battery doesn't respond to the on/off button or doesn't come back on after restart, work through these checks before calling GivEnergy support.

1
Check the battery DC MCB (Hybrid systems)

Open the battery flap and check the position of the DC MCB breaker. If it has tripped to the DOWN position during the restart attempt, push it firmly back UP. A tripped MCB prevents the battery from starting — this is the most common reason a battery appears unresponsive after a restart attempt. Close the flap and retry the startup button.

2
Check the AC isolator is ON

If the AC isolator on the wall has been switched off (circle symbol = off), the battery cannot power on as it has no AC reference from the inverter. Confirm the AC isolator is in the line (ON) position — pointing straight up. On AIO systems, also check the AIO isolator on the unit itself.

3
Check for a separate wall-mounted DC breaker (older Gen 2 systems)

Some older GivEnergy Gen 2 installations have a separate DC breaker mounted on the wall rather than inside the battery flap. If you have one of these, check it is in the ON position. It looks similar to an AC isolator and is usually located near the battery unit.

4
Check the CAN communication cable

The CAN cable is a small connector (usually RJ45 or a proprietary plug) that runs between the inverter and the battery. If this has come loose — which can happen during property moves or when working near the units — the battery may start but immediately report a communication fault. Check both ends of the cable are firmly seated.

!
If none of the above helps — contact support

If the battery still does not power on after checking all of the above, the issue is likely a hardware fault — failed BMS board, tripped internal protection, or a battery cell fault. This requires a remote diagnostic or an engineer visit. Do not attempt to open the battery enclosure — this voids the warranty and is unsafe.

After restart
After

What to check after the battery restarts

LEDsBattery LED should settle to a solid green (standby or fully charged) or solid blue (charging). A flashing pattern that persists after 2 minutes indicates the fault has not cleared.
PortalOpen MyGivEnergy and check the battery SoC is reading a realistic value — it should match the approximate level before the restart. If it shows 0% or 100% and the system was at a different level, the BMS re-sync is still in progress.
Fault logGo to Settings → Fault Log in MyGivEnergy and confirm the previous fault code has cleared. A restart event should appear with no new fault codes following it.
ChargingConfirm the battery is charging from solar (if solar is generating) or from the grid (if in the AC Charge window). If the battery shows as full but no power is flowing, check the charge schedule and mode settings.
TimingAllow at least 10 minutes before concluding the restart has or hasn't worked. BMS re-synchronisation and portal updates are not instantaneous.
Related

Related GivEnergy guides

Setup
Full System Restart

Complete shutdown and restart sequence for GivEnergy Hybrid and AIO systems — the correct order matters.
Problem
CAN Communication Fault

What causes CAN faults, how a battery restart clears them, and when the cable needs replacing.
Problem
Red Light Flashing on Battery

What the flashing red LED means and whether a battery restart will clear it.
Setup
Battery Calibration

How to reset the battery SoC calibration if the percentage reading is consistently inaccurate.
Problem
Battery Not Charging Overnight

If the battery restarts fine but still won't charge overnight, the issue is the charge schedule not the hardware.
Fault Codes
GivEnergy Fault Code Index

Full reference for all GivEnergy F-codes and E-codes — look up any code still showing after restart.
FAQ

Frequently asked questions

Press and hold the on/off button on the battery unit until you hear a beep and the LEDs go out (3–5 seconds). Wait 30 seconds, then press and hold again until the LEDs come back on. On an AIO, use the blue GivEnergy button to shut down, wait 30–60 seconds, then press the small button to the right of the DC cover to restart. Allow 2–5 minutes for the battery to reconnect with the inverter.
No. Charge schedules, system mode, discharge cut-off, and all other settings are stored in the inverter's non-volatile memory — not the battery. Restarting the battery does not affect these settings. After restart, the battery reconnects to the inverter and resumes using the existing configuration.
Check the battery DC MCB inside the battery flap — it may have tripped to the down (off) position. Push it back up and retry. Also confirm the AC isolator is in the ON (line) position. On older Gen 2 systems, check for a separate wall-mounted DC breaker. If all isolators are on and the battery still won't respond, it likely has a hardware fault requiring a diagnostic or engineer visit.
The battery itself restarts in under 2 minutes. Allow 5–10 minutes for the battery to re-establish communication with the inverter and for MyGivEnergy to update with current status. During this period the portal may show the system offline or the battery SoC may display incorrectly — this is normal and resolves as the BMS re-synchronises with the inverter.
The remote diagnostic is free. If a full restart and a full-system restart don't bring the battery back, we connect to your GivEnergy data and tell you whether it's a comms fault, a BMS lockout, or a hardware fault. If we can fix it remotely it's £75, and you only pay if we fix it; a hardware fault handled on-site is quoted first, from £245, and an end-of-life unit is a warranty conversation we guide you through — including what GivEnergy's administration means for it now the manufacturer has ceased trading.
Usually the same day. We confirm why the battery isn't restarting in a 30-minute remote session — reading your GivEnergy portal and battery data while you describe the LED and portal state — and you get a written summary of the cause and the recommended fix straight after the call.
Call 07944 877 329 Book free diagnostic