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Brand support · Duracell Energy

Duracell Energy Home Support — Battery, EPS & App Monitoring

Duracell Energy Home hybrid inverters and battery systems are appearing across UK homes. Battery not charging, EPS backup not activating, app offline — we diagnose Duracell Energy systems at the engineering level. Remote-first, but WiFi isn't remote work: if the communication module needs reconnecting to your WiFi, we can set it up on site, from £195. Evidence-led. Independent from Duracell Energy and from your installer.
Free remote diagnostic £125 only if we fix it remotely
  • Not affiliated with Duracell Energy
  • Hybrid inverter and battery diagnostics
  • App and portal monitoring support
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Most solar faults are diagnosed remotely in a single session. Tell us what you're seeing and we'll work it out.

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Safety: do not open inverter or battery enclosures. If you smell burning or see arcing, isolate at the consumer unit and call 999.

Contacted Solar Tech about my Givenergy battery storage system that wasn't working. Battery status was "idle". Given the company Givenergy had gone bust, I need independent quality technical help. Very patient and clearly very knowledgeable about battery systems Ron diagnosed possible issues and suggested several possible remedies. Worked our way through them and fortunately it began to work. The fault was very specific and only an experienced engineer would have thought to check. Suffice to say I'll be back if I need independent support again. Lastly you only pay if there is a solution. Outstanding.

Mr P · Jun 2026 Trustpilot

Had a problem with my GivEnergy battery which had decided to charge and discharge to a very limited extent. From AI, felt that the problem was probably a calibration issue on the Battery Management System, but which I could not fix myself. So contacted Solar Tech Support, and Ron was brilliant in being able to identify, confirm and fix the issue remotely and very speedily. Thoroughly recommend this outfit

Geoff Henney · Oct 2026 Google

Absolutely amazing service. Ive had a couple of issues with my Givenergy system and couldn't manage to get in touch with Givenergy after they went bust. So I was searching on Google and came across Rons number. I sent Ron a WhatsApp message and got a prompt reply and he resolved the problem I had with my system. I can't recommend Ron enough its not often you get such a good service in this day and age. If you are experiencing issues with your solar system Ron is the man to contact.

michael fairhurst · Jul 2026 Trustpilot

After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.

Keith Ballard · Apr 2026 Trustpilot

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 Trustpilot

Super support. Delighted I found them. System battery was down for quite a while and no one would try to fix it as GivEnergy out of business. A few hours later and I’m up and running again. Brilliant service!!! Highly recommend them.

Ed Place · Sep 2026 Google
Duracell Faults

Common Duracell Energy problems we diagnose

Every fault below has a proven diagnostic path. Click through for the specific page or book a diagnostic if you're unsure.

EPS & Grid Protection
EPS not activating

Backup power not available during power cut. EPS disabled, wiring issue, or SoC below minimum threshold.

Guide →
Grid protection trip

Duracell Home disconnecting from grid due to G98/G99 fault. Voltage, frequency, or isolation error.

See diagnostic guide →
No solar production

Duracell inverter not generating from panels. DC string fault, protection trip, or grid code lock.

Guide →
System underperforming

Output lower than expected. Panel soiling, string fault, or firmware misconfiguration.

See diagnostic guide →
Fault Codes

Duracell Energy fault code index

Duracell Energy app logs fault codes and alarms when system errors occur. Our diagnostic process covers all fault categories and alarm codes across Duracell Energy Home models.

Fault code categories
·Battery BMS communication alarms
·EPS backup mode fault events
·Grid protection alarms (G98/G99)
·Battery protection and isolation faults
Services

What we do for Duracell Energy owners

Remote Duracell Energy Diagnostic

We review Duracell Energy app data, settings, and error history to identify the exact fault without a site visit.

✓ Fault path identified
✓ Settings validation
✓ Written engineer summary
Book remote diagnostic

Duracell Energy System Recovery

App access lost, portal locked, or firmware misconfiguration. We recover monitoring and rebuild documentation.

✓ App account recovery
✓ On-site WiFi setup, from £195
✓ Warranty evidence pack
Start recovery

On-Site Duracell Energy Repair

Battery communication fault, inverter repair, module replacement, EPS wiring validation. Targeted visit — no guesswork on arrival.

✓ Evidence-led targeted checks
✓ Safety-focused report
✓ Repair or replacement path
Discuss visit

About Duracell Energy Home systems

Duracell Energy is a UK market brand offering an integrated home energy storage solution under the well-known Duracell brand. The Duracell Energy Home combines a hybrid solar inverter with modular battery storage in a single system managed through the Duracell Energy app. The system handles solar generation, battery charge/discharge, and grid connection — all displayed in the mobile app.

As a relatively new entrant to the UK market, firmware updates are common and can occasionally affect app connectivity and system behavior. EPS (Emergency Power Supply) is available but requires correct wiring to a dedicated backup circuit and must be enabled in system settings. Battery isolation alarms and communication faults are logged in the app alarm history.

If you're searching for Duracell Energy battery not charging, Duracell Energy Home fault, Duracell Energy app offline, Duracell Energy EPS not working, or Duracell Energy battery communication error, STS provides independent diagnostic and repair support across the UK — not affiliated with Duracell Energy Ltd or your installer. We diagnose at the engineering level using app data, screenshots, and on-site testing where needed.

Compare Duracell Energy against other brands: Duracell vs GivEnergy, Duracell vs AlphaESS, Duracell vs Fox ESS, Duracell vs Sigenergy.

We also support

STS supports all major inverter and battery brands — not just Duracell Energy. If you have a mixed-brand system or are comparing options, visit the brand hub.

Browse all brands
FAQ

Duracell Energy questions answered

The most common causes are an incorrect operating mode in the Duracell Energy app, a battery communication fault between the battery modules and the hybrid inverter, or a grid protection event preventing normal operation. Check the Duracell Energy app for any active alarms or fault notifications. If a communication alarm is shown, a full power cycle of the system (shut the battery down at its own control first, which stops power flowing, then inverter off at the AC isolator, wait 60 seconds, inverter on, then battery on last) resolves most transient faults.
Duracell Energy EPS backup requires the backup circuit to be connected to the correct EPS output terminal and EPS mode to be enabled in the system settings. If the battery's state of charge was below the minimum EPS threshold at the time of the outage, backup mode will not activate. Check the Duracell Energy app history for the battery SoC at the time of the power cut. If SoC was sufficient and EPS still didn't activate, the EPS wiring configuration or settings need investigation.
The Duracell Energy app shows offline when the system's communication module has lost its internet connection. This typically happens after a router change, WiFi password update, or broadband interruption. Power cycling the hybrid inverter (AC isolator off, wait 30 seconds, back on) usually restores the connection. If the system remains offline, the WiFi settings in the inverter may need to be reconfigured, and we can set it up on site, from £195.
Yes. The Duracell Energy app logs fault events and alarm history, which we review remotely to identify the cause of battery, EPS, or monitoring faults. In most cases, a remote diagnostic is sufficient to determine whether the issue is a configuration fault (correctable remotely), a transient communication error (resolved by power cycle), or a hardware fault requiring a site visit. We provide a written report with cause and recommended action after every diagnostic. We don't set up or diagnose WiFi remotely or over the phone: it's quicker and more reliable done on site.
EPS backup in Duracell Energy requires two steps: (1) Wiring — your backup load (typically critical circuits) must be connected to the dedicated EPS output terminal on the inverter, separate from the main load connection. (2) Settings — EPS mode must be enabled in the Duracell Energy app system settings and configured to activate during grid outage. If both are correct but EPS still doesn't work during a power cut, check the app history for battery SoC at the time — if below minimum threshold, EPS won't activate. Book a diagnostic if in doubt.
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Tell us what's happening. We'll review your details and come back with a clear diagnosis path — usually same day.

  • Not affiliated with Duracell Energy
  • No fix, no fee covers remote fixes. On-site work is quoted in writing before we start.
  • On-site visits available

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