myenergi libbi
A modular hybrid home battery with a 3.68 kW or 5 kW inverter and 5 kWh battery modules, expandable to 20 kWh.
- Best for modular 5 kWh steps
- Installed system
- 5-20 kWh
- Hybrid inverter
- Energy: 5.12 kWh per module (4.6 kWh usable), with up to four modules for 20 kWh.
- Power: a 3.68 kW or 5 kW hybrid inverter that includes two solar inputs.
- Optional blackout backup to a dedicated socket or lighting circuit.
- Works with other myenergi products such as the eddi and zappi.
Not tested by us
We have not tested the myenergi libbi. The figures on this page come from the sources listed at the end of the page, checked on 10 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
5.12 kWh
Energy per module
20 kWh
Maximum with 4 modules
5 kW
Largest inverter
Specifications
Last checked on 10 November 2026. The grey text under each name explains what the value means.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | 5.12 kWh per module; models from 5 to 20 kWh in 5 kWh steps |
| Usable capacityThe part of the stored energy you can actually use. It is lower than the nominal capacity. | 4.6 kWh per module |
| Depth of dischargeHow much of the battery can be emptied without harming it. 90% means 10% is kept in reserve. | 90% |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | LFP (LiFePO4) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | The datasheet gives no cycle number: it says "unlimited", subject to warranty criteria |
| ExpansionExtra battery units that add storage to the same system. | Up to four 5 kWh modules in parallel: 20 kWh in total |
| Power | |
| AC output (continuous)The power it can deliver all the time. Add up the watts of what you want to run at once and stay below this. | 3,680 W (3.68 kW models) or 5,000 W (5 kW models), 230 V |
| Peak outputA short burst above the continuous rating, for example to start a motor. It cannot be held. | 6,900 VA for 10 seconds |
| Charge and discharge powerHow fast the battery can take in and give out energy. It sets how many devices it can serve at once. | With one module: 2,825 W charge and 4,000 W discharge. With two to four modules on the 5 kW model: 4,600 W charge and 5,000 W discharge. |
| Round-trip efficiencyThe share of the energy you put in that comes back out. The rest is lost as heat. | Not stated. The datasheet gives a maximum PV efficiency of 97.6%. |
| Backup in a power cutWhether it can keep selected circuits running during a grid outage. | Optional blackout backup to a dedicated socket or lighting circuit; no backup power rating is listed |
| Solar | |
| Solar inverterTurns the DC power from solar panels into AC for the home. Built in means no separate solar inverter is needed. | Built in (hybrid) |
| Solar inputsThe number of panel strings it can track separately (MPPT) and the total DC power. | 2 MPPT inputs, 80-560 V; up to 5,520 W of panels (3.68 kW model) or 7,500 W (5 kW model), with the latest firmware |
| Connection and housing | |
| Grid connectionThe supply type it is built for. Check it matches your home's supply. | 230 V AC, 50/60 Hz |
| Dimensions (W × H × D)Width, height and depth of the unit, so you can check that it fits. | Inverter 540 × 590 × 240 mm; each battery module 540 × 490 × 240 mm |
| WeightMatters for lifting, wall mounting and moving it. | Inverter 32 kg; each battery module 54 kg |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | IP65 for the inverter and the battery module |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | Battery -10 to 50 °C; inverter -25 to 60 °C, with reduced output above 45 °C |
| Noise levelFan noise while working. | Below 25 dB (inverter) |
| ConnectivityHow you monitor and control it, usually through an app. | Wi-Fi (2.4 GHz), Ethernet and RS485 on the controller; 868/915 MHz link to other myenergi devices |
| CertificationsSafety and grid standards the maker says the product meets. | Includes G98/G99, IEC 62619 and UN 38.3 |
| Warranty | |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | Not stated on the datasheet |
Compatible with
What myenergi says this product works with. Anything not listed here is not confirmed.
- Expansion
- Up to four 5 kWh battery modules in parallel (20 kWh).
- Solar
- Panels connect to the built-in hybrid inverter's two MPPT inputs.
- Other myenergi products
- myenergi says libbi prioritises stored electricity for the home, an eddi or a zappi.
Rules where you live
An installed battery normally needs a qualified electrician, and in many countries you must also tell your grid operator, especially if it can export. Rules, incentives and tax treatment differ by country: see our country guides for what applies where you live.
Strengths and things to check
Strengths
- Modular: add 5 kWh modules up to 20 kWh
- Hybrid inverter with two solar inputs
- IP65 and below 25 dB for the inverter
- Designed to work with other myenergi products
Worth checking before you buy
- The datasheet does not state a warranty or a round-trip efficiency
- Backup is optional and the datasheet gives no backup power rating
- Each battery module weighs 54 kg
- myenergi has since announced libbi 2, which this page does not cover
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 10 November 2026
- Page published. The datasheet we read (revision C, October 2023) does not state a warranty, so none is shown.
Where this information comes from
We have not tested the libbi. Every figure above comes from myenergi's libbi datasheet (revision C, October 2023), last checked on 10 November 2026. myenergi has announced a libbi 2 with different specifications, which this page does not cover. A value that the datasheet does not state is shown as not stated.
We do not show prices, because they depend on the installer's quote.
- Manufacturer myenergi libbi datasheet (DS-00001 Rev C)
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Common questions about myenergi libbi
How much can the libbi store?
Each battery module holds 5.12 kWh, of which 4.6 kWh is usable at 90% depth of discharge. myenergi lists models from one to four modules, up to 20 kWh.
Does the libbi have a solar inverter?
Yes. It has a built-in hybrid inverter of 3.68 kW or 5 kW with two solar inputs, so panels can connect to it directly.
Does the libbi work in a power cut?
myenergi lists optional blackout backup to a dedicated socket or lighting circuit and gives no backup power rating. Whether a battery pays back depends on your tariff: see our guide to home batteries without solar panels.
Related guides
Does a modular battery fit your home?
Our calculator uses your own usage and tariff to estimate what a home battery could save, with conservative assumptions.