Ron responded very promptly regarding my GivEnergy battery issue, his knowledgeable diagnosis was spot on and resolved the issue on first attempt. Would recommend to any and all.
Simon Hill · May 2026
Brand support · Dyness Battery Storage
Dyness Battery Support — B4850, Tower Pro BMS Faults & Inverter Compatibility
Dyness battery not charging, BMS communication fault, Tower Pro errors, or inverter compatibility problems — we diagnose Dyness battery systems at the engineering level. Independent battery specialists, not affiliated with Dyness or your installer.
Free remote diagnostic · pay only if we fix it — from £75 if remediable remotely
- Not affiliated with Dyness
- B4850 & Tower Pro supported
- All compatible inverter pairings supported
Dyness battery not working correctly?
Most Dyness BMS and configuration issues are resolved remotely. Tell us the battery model, your inverter, and what you're seeing.
Book your free remote diagnosticSee the Solar Health PlanSafety: If your Dyness battery is showing fault lights or unusual heat, isolate at the DC switch before investigating.
Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.
Hugh Speirs · Apr 2026
Absolutely wonderful support. I have a GivEnergy system that was installed in 2022, and a firmware update was flagged in the app, so I proceeded to update the software .... and immediately regretted it, as my inverter came up with an error, and was not working at all! With no GivEnergy support available, and my installer saying there was nothing he could do, I googled help, and found Ron. What a stroke of good luck! Submitted an on line enquiry late morning, and received phone call just after 5 pm, and later that evening Ron was able to supply me with old firmware no longer available on the GivEnergy web site. I was then able to update the firmware using a GivEnergy youtube video as reference, and hey presto the system was back up and running. One further slight adjustment by Ron and we are back normal. What a relief. I have no hesitation in recommending Solar Tech Support if you have a problem. Great service! And if you are a GivEnergy system owner, whatever you do, DO NOT UPDATE FIRMWARE!
Neill Ginn · Jul 2026 Google
My 90-year-old father-in-law had a solar system installed nearly three years ago that never worked properly and kept tripping out. Neither the original installer nor GivEnergy could resolve the issues, and we were even pushed towards replacing the system entirely when GivEnergy went bust. I contacted Ron at Solar Tech Support via WhatsApp, and within a few hours he had diagnosed multiple faults — including incorrect wiring that posed a potential fire risk. He carried out a home visit in Nottingham for £295 (including parts), fixed everything, completed firmware updates, and ensured the system was fully operational. Since then, it has worked perfectly. Ron was knowledgeable, responsive, and took the time to explain everything clearly. Highly recommended — excellent value and complete peace of mind.
Julian F · Jun 2026 Google
Contacted Ron with a problem and he sorted it out quickly with no problems at all. Very knowledgeable on anything solar/ batteries. I would recommend him to anyone
Phill · May 2026
Ron is incredibly knowledgeable about solar installs in general but knows givenergy products inside out and the key personnel that worked there from the start to the end. My problem was spurious in its nature but Ron spotted it straight away when he understood the installation details. In essence the installers didn’t fit the correct trip switch. He also gave me hope that in the future hardware repairs could be possible but it’s still early days. This guy really is in the know and keen to sucas a business If you need help don’t hesitate
Geoffrey Heathcote · Jun 2026 Google
Dyness Faults
Common Dyness problems we diagnose
Dyness batteries work with many inverter brands — faults are often in the communication layer or the inverter's schedule, not the battery itself.
Battery & Charging
Most common
Battery not charging overnight
Dyness batteries rely on the paired inverter's Time of Use schedule. If the battery isn't charging overnight, the fault is almost always in the inverter configuration — not the Dyness battery itself. We diagnose both the inverter schedule and the battery BMS communication layer.
See diagnostic guide →Common
Battery not discharging
Dyness battery fully charged but the inverter isn't drawing from it. Check the discharge schedule and minimum SoC threshold on the inverter. If the Dyness has a BMS protection trip active (e.g. over-temperature, cell imbalance), the battery will refuse to discharge until cleared.
See diagnostic guide →Model-Specific Issues
B4850
B4850 LV module faults
Dyness B4850 is a 48V low-voltage module (2.4kWh each, stackable to 10 units). Common issues: module address conflict when stacking multiple units (DIP switch misconfiguration), one module triggering a protection fault causing the whole bank to shut down, or cell imbalance in older stacks.
See diagnostic guide →Tower Pro
Tower Pro HV faults
The Dyness Tower Pro is a high-voltage modular system (3.84kWh per module). Common issues: HV insulation fault on first start (often a loose connection in the HV stack), BMS master/slave assignment errors when adding modules, or fire suppression system triggering unexpectedly on early units. Requires HV-qualified engineer for physical checks.
See diagnostic guide →
Services
All services →
What we do for Dyness battery owners
Remote Dyness BMS Diagnostic
We review inverter logs, BMS communication data, and battery error history to identify whether the fault is in the Dyness battery, the inverter, or the communication layer.
✓ Inverter-battery communication audit
✓ BMS fault code interpretation
✓ Charge/discharge schedule review
Inverter Pairing & Configuration
We configure the correct Dyness battery protocol, DIP switch addressing, and battery bank capacity settings on the paired inverter. Covers all common inverter brands that support Dyness batteries.
✓ Protocol matching (CAN/RS485)
✓ Battery count & capacity config
✓ TOU schedule optimisation
On-Site Dyness Inspection
CAN/RS485 cable verification, DIP switch inspection, module stack health check, and safe isolation for Tower Pro HV faults. HV-qualified engineer for Tower Pro systems.
✓ Physical wiring & connection check
✓ Safety-focused report
✓ Repair or replacement path
Documents
Dyness datasheets, manuals & warranty PDFs
Download datasheets, installation manuals and warranty documents for Dyness hybrid inverters and battery systems. Self-hosted and always current.
Product datasheets & specifications
Installation & commissioning manuals
Warranty terms & coverage documents
App & software setup guides
Wiring diagrams
Fault Codes
Dyness fault code index
Seeing an error code on your Dyness inverter? Our fault code index explains what each code means, common causes, and safe next steps.
·Battery communication & BMS faults
·Grid connection & frequency faults
·Over-temperature & protection events
·WiFi & app monitoring errors
About Dyness batteries — what you need to know
Dyness is a Chinese battery storage specialist that produces modular LiFePO4 battery systems designed to work with most hybrid inverters on the market. Their UK range includes two main products: the B4850, a low-voltage (48V) battery providing 2.4kWh per module, stackable up to 10 modules (24kWh), with an 80% depth of discharge and a 10-year warranty; and the Tower Pro, a high-voltage modular system delivering 3.84kWh per module, stackable 2–6 modules per tower (7.68–23.04kWh), with IP55 weatherproofing, a 1C charge/discharge rate, and a 15-year warranty. Some Tower Pro configurations include an integrated fire suppression module.
Because Dyness batteries are inverter-agnostic, they pair with many hybrid inverters — common UK combinations include Sofar, Solis, Fox ESS, GivEnergy, and LuxPowerTek inverters. The battery communicates via CAN bus or RS485 depending on the inverter, and the correct protocol must be selected on the inverter for the pairing to work. The most common queries we handle: Dyness battery not charging, Dyness BMS communication fault, Dyness B4850 module fault, Dyness Tower Pro error, and Dyness inverter compatibility. STS provides independent support — not affiliated with Dyness.
B4850 (Low Voltage)
48V · 2.4kWh per module · stackable ×10
Max total: 24kWh
80% DoD · 6000+ cycles
10yr warranty · CAN / RS485
Tower Pro (High Voltage)
HV · 3.84kWh per module · stackable 2–6
Range: 7.68kWh – 23.04kWh
1C charge/discharge · IP55
15yr warranty · optional fire suppression
Related problem pages
Compatible inverter support pages
We also support
STS supports all major inverter and battery brands. If your Dyness battery is paired with a specific inverter brand, visit that brand's page for inverter-specific guidance.
Browse all supported brandsDyness battery questions answered
Dyness batteries don't hold their own schedule — charging is controlled by the paired inverter. First, check the inverter's monitoring platform for the Time of Use schedule. The charge window must be enabled, grid charge must be on, and the SoC minimum must be below your current state. If the schedule looks correct but charging still fails, check for a BMS communication fault in the inverter's event log.
The B4850 is a low-voltage (48V) system — 2.4kWh per module, stackable to 10 units (24kWh), suited to standard hybrid inverters. The Tower Pro is a high-voltage modular system — 3.84kWh per module, 2–6 modules per tower (7.68–23.04kWh), with IP55 protection, a 15-year warranty, and a 1C discharge rate. The Tower Pro requires a high-voltage capable inverter and should be serviced by an HV-qualified engineer.
Dyness batteries are designed to be inverter-agnostic via CAN bus or RS485. Common UK pairings include Sofar, Solis, Fox ESS, GivEnergy, and LuxPowerTek. The correct communication protocol must be selected on the inverter during commissioning — using the wrong protocol is one of the most common causes of BMS communication faults. We verify the full communication chain remotely.
A BMS comm fault means the inverter has lost contact with the Dyness battery management system. The battery will refuse to charge or discharge as a safety measure. Causes include: wrong communication protocol selected on the inverter, incorrect DIP switch address on one or more battery modules, a damaged CAN or RS485 cable, or a firmware version mismatch. This is typically diagnosable remotely from the inverter's event log.
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Ready to fix your Dyness system?
Tell us your Dyness model, the inverter it's paired with, and what you're seeing. We'll diagnose the fault — usually same day.
- Not affiliated with Dyness
- No fix, no fee
- All compatible inverter brands supported
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