I can’t praise this firm enough. After hearing my solar panels rattling in very windy conditions, I contacted Solar Tech (as my installers no longer trade). Ronald was fantastic at explaining what he thought the issue was likely to be. Communication was great throughout keeping me fully updated. The team worked really hard on the day to carry out the necessary work. I can now sleep soundly at night without worrying about the solar panels on my roof. I would thoroughly recommend this firm. Thank you for sorting the problem out.
GivEnergy batteries — LV GivBats + HV stackable kits
- Sourced from the official GivBat datasheets
- LV (RS485) and HV (CAN) architectures both covered
- Independent — GivEnergy Ltd in administration since Apr 2026
STS reads GivBat state remotely over modbus — dip-switch addressing, cell voltages, BMS events, firmware compatibility. No portal access required. Free remote diagnostic, no fix, no fee.
Book your free remote diagnosticAll GivEnergy productsIndependent of GivEnergy Ltd (in administration since 9 April 2026).
Ron was really helpful. He remotely adjusted my battery settings on the same day I contacted him, and at a reasonable price. Great service.
STS were incredibly responsive and helpful In diagnosing an issue with my GivEnergy inverter. Although distance meant it was impractical for me to use them to fully solve the issue, I’m grateful for the help and detail they provided. Don is a real professional gent and a hero in my eyes.
Big thanks to Ron. He was incredibly patient and helpful over the phone, taking the time to walk myself and the installer through every troubleshooting step. Through lots of testing he figured out the issue was definitely a hardware issue, which allows us to consider our next steps. Support fees are clear and they operate a “no fix no fee” policy. It is rare to find that kind of honesty combined with dedicated phone support nowadays. I highly recommend Ron, if you need help with your solar system don’t hesitate to give him a call.
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.
Very very helpfuland so quick. Made sure that a non expert like myself understood what the problem was and how to resolve it.
GivBat LV range — key specifications (from datasheets)
Two architectures — LV GivBat modules and HV stackable kits
The GivEnergy battery range has two completely different architectures, and getting them right matters for any expansion or diagnostic. The LV side (Gen 1 through Gen 3 GivBat modules) is 51.2V nominal and uses RS485 over the proprietary plug/lug DC+comms cable with master/slave addressing set by dip switches on each battery. The HV side (Gen 3 stackable kits and the AIO 2 expansion battery) is 200–600V and uses CAN bus. There is no "GivHub" — that is not a real GivEnergy product. The Gen 3 hybrid inverters have in-built WiFi/LAN per datasheet; older Gen 1/2 hybrids use the separate WiFi Dongle.
GivBat LV module-by-module specifications
Every spec below is sourced from the official datasheet for that module. Gen 1 small units (2.6, 5.2) are 80% DoD; everything else is 100% DoD. Note: there is no "GivBat 10.2" — that model does not exist in the GivEnergy datasheets. Gen 1 8.2, Gen 2 9.5 and Gen 3 9.5 datasheets explicitly state "Unlimited Cycles / 12 Years"; the Gen 3 5.12 datasheet states "12 Years" with no unlimited-cycles wording.
USB port on Gen 3 batteries is firmware-update only — per the Gen 3 9.5 manual, "The USB of the battery can only be used for firmware upgrades. Please do not plug your phone or other electronic products into the USB of the battery for charging." The Gen 3 manuals also state explicitly that "All Generation 3 battery cables need to be purchased separately" — plug-to-plug, lug-to-plug, and the blanking plug for unused master ports are not bundled with the battery.
HV stackable battery kits — for the Gen 3 8.0 hybrid
The Gen 3 8.0kW hybrid inverter is HV-only — datasheet Battery Voltage Range 120–510V, Communication Interface CAN. It does not accept LV GivBats. Per UKDatasheetStackableBatteriesv2.pdf the HV side ships as pre-built kits with the GIV-BAT-HV-KIT and a count of 3.4kWh battery packs (GIV-BAT-3.4-HV). Comms is CAN bus on the orange HV-kit connector — this is the architecture where the 120-ohm terminator and RJ45 chain language actually applies (unlike the LV side).
Per the stackable batteries manual the minimum stack is 3 packs (10.2-HV) and the maximum is 6 packs (20.4-HV). Commercial systems can parallel multiple stacks. The expansion path here is different from LV — there are no dip switches to set; the kit ships pre-configured.
Temperature, location and BMS behaviour
GivBats are weatherproofed to IP65 (datasheet) but the BMS protects the cells against temperature extremes regardless. Charging is inhibited below 0°C — physically the cells cannot be charged safely at sub-zero, lithium plating is the failure mode. Discharge is permitted down to about -10°C. Per the GivEnergy "Cold Weather Guide for GivEnergy Batteries", expect roughly 10% capacity reduction at 5°C. There is no internal heater.
Inheriting a system in an unheated outbuilding? The "battery will not charge on a frosty morning" complaint is one of STS's most common winter inbounds, and it is not a fault. The BMS is doing the right thing. See our cold-weather page for the full picture.
What the 12-year warranty actually means now
GivEnergy Ltd entered administration on 9 April 2026. The administrator has confirmed no further hardware warranties will be honoured by GivEnergy Ltd. The 12-year warranty figure remains on every datasheet, but the original-manufacturer route to claim it is closed. Alternative recovery routes that may still produce a result:
support@givenergy.co.uk for hardware warrantySee the dedicated GivEnergy warranty page for the full walk-through of each alternative route. STS can prepare an engineer report identifying the fault and confirming it is not caused by installation error — required evidence for any of the routes above.
GivEnergy battery questions
Battery fault or charging issue? We will diagnose it.
Tell us what you are seeing — BMS event codes, dip-switch concerns, comms fault, reduced capacity, or just sanity-checking the warranty position. STS reads battery state over modbus and identifies the cause same day.
- Independent — GivEnergy Ltd is in administration
- Free remote diagnostic · no fix, no fee
- Engineer report supports any alternative warranty claim
GivEnergy problems? No fix, no fee.
I’ve worked on hundreds of GivEnergy systems and know the kit inside out. If yours is playing up, my promise is simple — no fix, no fee: just £75 if we fix it, free if we don’t.
We use cookies to measure traffic and improve our ads — including sharing limited, hashed details with Meta (Facebook) to measure ad performance. Accept, or decline for essential cookies only. Privacy policy
Got a solar fault or need a quick answer? Drop us a message — we usually reply within a few minutes. Mon–Fri, 9am–7pm.