GivEnergy All-in-One Battery Storage — AC & DC Models Explained
The GivEnergy AIO integrates battery, inverter, and smart energy management in a single unit. AC-coupled 6kW and 3.6kW models retrofit onto existing solar in hours. The DC-coupled AIO 2 + MPPT uses 6 independent trackers for new builds and complex roofs. All models include 13.5kWh LiFePO₄ storage, EPS backup power, and grid services capability.
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All-in-one battery storage, inverter, and energy management
The GivEnergy All-in-One (AIO) brings battery storage, inverter technology, and smart energy management into a single compact unit. Unlike older hybrid inverters, the AIO is modular and scalable — you can stack multiple units to expand capacity, and configure output power to match your grid export limits and energy demands.
AC-coupling explained
The AIO 6kW and 3.6kW use AC-coupling: your solar panels connect to an existing PV inverter, and the AIO battery inverter connects to the output of that inverter via AC cables. This topology is ideal for retrofits because it avoids complex rewiring of existing solar arrays. The AIO charges from excess solar production and discharges to power your home, with surplus energy flowing back to the grid. During blackouts, EPS (Emergency Power Supply) mode activates, allowing the battery to power your home's circuits automatically.
DC-coupling with AIO 2 + MPPT
The AIO 2 + MPPT uses DC-coupling: solar panels connect directly to a dedicated MPPT (Maximum Power Point Tracking) module with 6 independent trackers. This maximises energy harvest from complex roof layouts and shaded areas, delivering 97.1% efficiency. The MPPT feeds DC power directly to the AIO inverter, which manages battery charging and grid export. DC-coupling is the preferred choice for new builds and systems with multiple roof angles or partial shading.
AC-coupled advantage
DC-coupled (AIO 2 + MPPT) advantage
GivEnergy All-in-One: model comparison
Three configurations covering every installation type — from simple retrofits to DC-coupled new builds.
| Specification | AIO 6kW (AC) | AIO 3.6kW (AC) | AIO 2 + MPPT (DC) |
|---|---|---|---|
| Output power | 6,000 W | 3,600 W | 6–12 kW configurable |
| Battery capacity | 13.5 kWh | 13.5 kWh | 13.5 kWh |
| Topology | AC-coupled | AC-coupled | DC-coupled + MPPT |
| MPPT trackers | — | — | 6 independent |
| Efficiency | AC-coupled | AC-coupled | 97.1% |
| Warranty | 12 years | 12 years | 15 years |
| Max parallel units | Up to 6 | Up to 3 | Single unit |
| Weight | 173.7 kg | 173.7 kg | 173.7 kg |
| Battery voltage | 307 V (HV) | 307 V (HV) | 307 V (HV) |
| IP rating | IP65 | IP65 | IP65 |
| SKU | GIV-AIO-AC-13.5 | GIV-AIO-AC-13.5-3.6 | GIV-AIO-13.5 |
| Grid standards | G98 / G99 | G98 / G99 | G98 / G99 |
| Best for | Retrofit, existing inverter | Smaller homes, low export limit | New build, complex roof |
All-in-One 6kW (AC-coupled)
The AIO 6kW is GivEnergy's most popular retrofit unit — 13.5 kWh of LiFePO₄ storage with a 6 kW inverter that connects to your existing solar PV system via AC cables.
Key specifications
Output power
6,000 W
Battery capacity
13.5 kWh LiFePO₄
Warranty
12 years
Parallel stacking
Up to 6 units (81 kWh / 36 kW)
SKU
GIV-AIO-AC-13.5
Grid compliance
G98 / G99
Features & capabilities
Use case: AIO 6kW
The 6 kW model suits homes with existing solar PV systems that export 5–6 kW or higher to the grid. Connect via AC cables to your PV inverter output and it will charge from excess solar and discharge during peak tariff periods. The 6 kW output allows you to maximise export revenue during favourable grid conditions, and the battery provides backup power during blackouts. Stack up to 6 units if you need to scale storage or output power further.
Plug-and-play onto existing PV inverters — no solar panel rewiring required.
Parallel up to 6 units for total 36 kW output and 81 kWh storage.
Lower upfront cost than DC-coupled systems with fast, simple installation.
All-in-One 3.6kW (AC-coupled)
The AIO 3.6 kW carries the same 13.5 kWh storage as the 6 kW model but with a reduced inverter output, making it the correct choice for homes with a lower DNO export ceiling or smaller energy needs — and it is also off-grid capable.
Key specifications
Output power
3,600 W
Battery capacity
13.5 kWh LiFePO₄
Warranty
12 years
Parallel stacking
Up to 3 units (40.5 kWh / 10.8 kW)
SKU
GIV-AIO-AC-13.5-3.6
Off-grid capable
Yes
Features & capabilities
Use case: AIO 3.6kW
The 3.6 kW model suits smaller homes or properties with a lower DNO export limit (typically under 4 kW). It delivers the same 13.5 kWh storage as the 6 kW but with a reduced inverter output, which is often more cost-effective for homes that don't need high export power. The AIO 3.6 kW is also off-grid capable, making it suitable for remote properties or hybrid installations. Stack up to 3 units if you need more output or additional battery reserves.
Lower output power reduces upfront cost while maintaining full 13.5 kWh storage.
Off-grid capable for remote installations or areas with low grid reliability.
Fits stricter export ceilings in areas where the DNO limits grid export power.
All-in-One 2 + MPPT (DC-coupled)
GivEnergy's most advanced AIO — a 13.5 kWh battery inverter paired with a dedicated 20 kW MPPT unit featuring 6 independent trackers, delivering 97.1% efficiency and a 15-year warranty.
Key specifications
Inverter output
6–12 kW configurable
Battery capacity
13.5 kWh LiFePO₄
MPPT unit
6 independent trackers
Max PV input
20 kW
Efficiency
97.1%
Warranty
15 years (longest in range)
Features & capabilities
The flagship choice: AIO 2 + MPPT
The AIO 2 + MPPT is GivEnergy's most advanced system, combining a 13.5 kWh battery inverter with a dedicated MPPT unit featuring 6 independent trackers. Unlike the AC-coupled models, which rely on a separate PV inverter, the AIO 2 + MPPT connects solar panels directly to the MPPT module — each tracker independently optimising its string's power output. This delivers 97.1% efficiency and a 15-year warranty, the longest in GivEnergy's product range.
Output is configurable from 6 kW to 12 kW to match your DNO export limit. The MPPT module accepts up to 20 kW of PV input, supporting large solar arrays. AFCI protection provides arc-fault safety, and the system supports grid services, whole-house backup, and EPS like all AIO models.
6 independent MPPT trackers: why it matters
Traditional single-MPPT systems optimise voltage and current for the entire array as one unit, losing efficiency whenever part of the roof is shaded or oriented differently. The AIO 2 + MPPT's 6 independent trackers treat each PV string as a separate optimisation problem:
One shaded string doesn't drag down the others — each tracker continues optimising its own string independently.
East, south, and west-facing panels each receive optimal tracking across the full day — maximising morning and afternoon harvest.
Up to 5–10% higher annual energy harvest compared to single-MPPT systems on complex or partially shaded roofs.
97.1% with direct DC conversion and 6 independent MPPT trackers.
15-year warranty reflects premium MPPT architecture and component quality.
DC-coupled design ideal for new homes with fresh solar arrays and complex rooflines.
When AC-coupling makes sense — and when it doesn't
Both topologies have their place. Here is how to decide which is right for your installation.
✓ Choose AC-coupled (AIO 6kW / 3.6kW)
✓ Choose DC-coupled (AIO 2 + MPPT)
Key differences summarised
Installation simplicity
AC-coupled wins for retrofits — no panel rewiring needed. DC-coupled wins for new builds where fresh wiring is being laid anyway.
Energy efficiency
DC-coupled (97.1%) outperforms AC-coupled, especially on complex or shaded roofs where multiple MPPT trackers make a material difference.
Warranty
AC-coupled: 12 years. DC-coupled AIO 2 + MPPT: 15 years — the longest available in the GivEnergy range.
Scalability
AC-coupled models stack multiple units (up to 6 × 6 kW = 36 kW). The DC-coupled AIO 2 + MPPT is a single flagship unit but accepts up to 20 kW PV input.
Typical cost
AC-coupled is lower upfront. DC-coupled costs more but delivers superior long-term ROI through higher energy yield and shorter payback on larger arrays.
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Configure your AIO for Octopus Go, Agile, Intelligent, Economy 7, and more.
Diagnostic guide covering system mode, CT clamp, SoC limits, and firmware resets.
Browse all fault guides — battery, portal, EPS, CAN comm, and firmware.
GivEnergy All-in-One questions
The AIO is AC-coupled (standard 6 kW and 3.6 kW models) or DC-coupled (AIO 2 + MPPT). AC-coupled AIOs connect to an existing PV inverter via AC cables, making retrofit straightforward without rewiring solar. Hybrid inverters typically refer to older all-in-one units with integrated battery management. The AIO 2 + MPPT connects solar panels directly to its MPPT module for higher efficiency (97.1%).
The AIO 6 kW and 3.6 kW (AC-coupled) require an existing PV inverter and solar panels to charge from solar. They can still charge from the grid using Timed Charge mode. The AIO 2 + MPPT is DC-coupled and is the correct choice for new builds with fresh solar panels — or for retrofits where you want to connect panels directly to the MPPT module rather than via an existing inverter.
Yes. The AIO 6 kW supports up to 6 parallel units for 81 kWh total and 36 kW output. The AIO 3.6 kW supports up to 3 parallel units. You can also add a GivBat expansion battery alongside your existing AIO unit to increase storage without adding a second inverter — useful if you want more capacity without a second installation.
The AIO 2 + MPPT combines a 6–12 kW configurable inverter with a dedicated 20 kW MPPT unit featuring 6 independent trackers. It delivers 97.1% efficiency and is designed for new builds and complex multi-orientation installations. The 15-year warranty — the longest in the GivEnergy range — reflects its advanced MPPT architecture and superior component quality compared to the AC-coupled models.
Yes. All AIO models include EPS (Emergency Power Supply) for automatic blackout backup. During a grid outage, battery power is automatically supplied to your home. G98 or G99 grid standards compliance must be verified with your DNO before installation — homes exporting more than 3.68 kW typically require G99 pre-registration.
A 10% reserve is recommended for general use to protect battery health and longevity — meaning a 13.5 kWh AIO retains 1.35 kWh as a buffer. If you rely on EPS blackout backup, consider a higher reserve (20–30%) so there is always sufficient power available during an outage. Adjust these settings in the GivEnergy portal under Battery Options → Operating Range.
Not sure which AIO is right for you?
Tell us about your existing setup — whether you have solar already, your roof layout, your energy tariff, and your goals. We'll give you an honest recommendation on which AIO model fits best.