Home battery safety: LiFePO4, the right location and what to do in case of fire
Last updated: 5 October 2026 · By Team Multi-Solar, home batteries since 2022, Rotterdam
A certified home battery with LiFePO4 cells and a battery management system is designed to stand safely in and around the home. But as with any device that holds a lot of energy, the location and the connection determine how much risk remains. Three things matter most: a good location (not in the escape route, with a smoke alarm nearby), the right connection (a dedicated circuit for a plug-in home battery, an installer for a fixed battery) and notifying your insurer. Below you can read, point by point, what the Dutch fire service, the Netherlands Institute for Public Safety (NIPV) and insurers advise.
How big is the risk of fire with a home battery?
In 2024, the NIPV carried out research into home batteries and fire safety. As far as is known, there had been no incidents in the Netherlands at that time with a commercial home battery within the scope of the research; there was one with a self-built battery. At the same time, the NIPV states that a home battery increases the likelihood of an incident and can make a fire grow faster. That is why there are recommendations for the location and the connection.
The battery management system makes a big difference. The NIPV refers to a 2019 study by DNV-GL, which indicates that a lithium-ion battery with a properly functioning safety system has a failure probability approximately 150 times lower than one without.
If something goes wrong, according to the NIPV it usually has one of these causes: electrical (for example overcharging), mechanical (damage), thermal (heat from outside), or an error during installation, maintenance or manufacturing, or ageing. Self-build is a separate risk.
Why is LiFePO4 safer than other lithium-ion batteries?
The difference lies in the cathode, one of the two electrodes in the cell.
| Characteristic | LiFePO4 (LFP) | NMC |
|---|---|---|
| Cathode | Lithium iron phosphate | Nickel, manganese and cobalt |
| Thermal stability | Higher | Lower |
| Energy density | Lower | Higher |
| Use in home batteries | Most common | Less common |
The NIPV wrote in 2024 that LFP is generally more stable and therefore safer than NMC, and in 2026 that home batteries mainly use LFP cells, which only go into so-called thermal runaway at a higher temperature. That is the chain reaction in which a cell keeps heating itself up further.
In laboratory tests by the Karlsruhe Institute of Technology (2023), self-heating started on average at around 85 °C for NMC cells and at around 124 °C for LFP cells. An LFP cell charged to 30 percent did not reach thermal runaway up to 350 °C in that test. These are test results, not a guarantee: LFP can also go into thermal runaway. That is why the BMS, the location and the connection remain important.
All home batteries in our range whose cell chemistry is stated in the specifications use LiFePO4.
What does the battery management system do?
The battery management system (BMS) continuously monitors the voltage, current and temperature of the cells. If something goes outside the limits, the BMS limits or stops charging or discharging. The fire service names the functions to look out for: shutting down in the event of a fault, a temperature rise, overcharging and over-discharging.
Some models have an extra layer. For example, every module of the AlphaESS Smile G3 has a built-in aerosol fire extinguisher, and according to the manufacturer the Zendure SolarFlow Mix models have a dual BMS with an aerosol fire suppression system. You can find the AlphaESS modules under AlphaESS.
Where do you place a home battery safely?
The Dutch fire service, the NIPV and Milieu Centraal (the Dutch environmental information centre) arrive at the same list.
- Not in an escape route. So not in the hallway, in the stairwell or under the stairs.
- Preferably in a separate room, such as a garage, storage room, shed or utility room; not in a bedroom or living room.
- Dry, cool and well ventilated. Not in a closed cupboard.
- On or against a non-combustible surface, such as a brick wall or concrete floor.
- With a working smoke alarm in the same room, so that a problem is noticed in time.
- With free space around it. Don't put things up against it, and make sure the battery cannot fall over or get wet.
- A plug-in home battery on the ground floor. That is the advice of the Dutch fire service from April 2026.
How much free space there must be around the battery differs per model. That distance is stated in the manufacturer's installation manual; follow it rather than general rules of thumb.
Indoors or outdoors: what does the IP rating tell you?
The IP code indicates how well a device is protected. The first digit relates to dust, the second to water. IP65 means dust-tight and resistant to water jets, IP66 dust-tight and resistant to powerful water jets. A battery with IP20 or IP21 belongs indoors only.
| Model | Cell chemistry | IP rating | Operating temperature |
|---|---|---|---|
| Marstek Venus E 3.0 | LiFePO4 | IP65 | see manual |
| AEG Solarcube Pro | LiFePO4 | IP66 | -20 to 55 °C |
| HYXi HALO | LiFePO4, cobalt-free | IP66 | -20 to 55 °C |
| Anker SOLIX Solarbank Max AC | LiFePO4 | IP66, corrosion class C5-M | -20 to 55 °C, with active heating |
| Marstek Venus X | LiFePO4 | IP65 | -20 to 55 °C |
| AlphaESS Smile G3 | – | 9.3S: IP65 · 3.8S: IP21, indoors only | 9.3S: -20 to 50 °C, heated |
Outdoor installation is only allowed if the manufacturer permits it, i.e. with the right IP rating and within the temperature range. The fire service prefers a cool, ventilated space such as a shed or garage.
Is a plug-in home battery safe?
Yes, if you place and connect it properly. In April 2026, the Dutch fire service gave specific advice for plug-in home batteries:
- Connect it to a dedicated circuit that is used only by the battery.
- Place it on the ground floor, in a dry and ventilated spot, not in the hallway or under the stairs.
- Fit a smoke alarm in the same room.
Why that dedicated circuit? Milieu Centraal explains that a circuit with a plug-in home battery can receive power from two sides: from the grid and from the battery. The wiring can then be loaded more heavily without the circuit tripping. The NIPV also writes that it is not intended to connect several batteries to one socket using a power strip. So don't use an extension cable or power strip. What the backup power output of a plug-in home battery does and doesn't do during an outage is explained in backup power with a home battery.
You have a dedicated circuit in the electrical panel installed by an installer; in the Netherlands, we arrange this via a quote. Why a plug-in home battery supplies a maximum of 800 W via the socket and how to register it is explained in the 800 watt rule for plug-in home batteries. Whether a plug-in battery or a fixed battery suits you better is explained in plug-in or fixed.
Why should a fixed home battery always be installed by an installer?
A fixed battery is connected to the consumer unit, and in the Netherlands that connection must comply with NEN 1010, the standard for electrical installations in the home. According to NEN, there is not yet a separate standard for the home battery as a whole. For the battery itself, the fire service names the product standard IEC 62619; ask your installer or supplier for proof that the battery complies with it.
For larger storage, there is the Dutch guideline PGS 37-1. It formally does not apply to private home batteries, but above 20 kWh it is recommended to apply the measures anyway. That is relevant if you expand: the Venus X grows to 60 kWh, the Anker Solarbank Max AC to 42 kWh. Discuss this with the installer. How much capacity you really need is explained in how many kWh of home battery you need, and what your connection can handle in single-phase or three-phase.
The fire service also recommends choosing a certified installer and asking about a maintenance contract. All fixed systems can be found under fixed home batteries; installation is arranged via a quote.
Do you need to notify your insurer about your home battery?
Yes, that is sensible. In August 2026, the Dutch Association of Insurers (Verbond van Verzekeraars) warned that a home battery is not automatically insured. The main points:
- A permanently connected battery usually falls under buildings insurance, a standalone plug-in home battery more often under contents insurance.
- There is no standard arrangement. Insurers can set their own requirements for placement, notification, maintenance and documentation.
- Most insurers want you to report the installation. A safe installation by a certified installer is an important starting point, and the location can also count.
So check your policy conditions in advance and call your insurer if in doubt. Keep the invoice, the datasheet and, for a fixed battery, the installation report.
What do you do if your home battery smokes, deforms or catches fire?
The fire service gives three steps:
- Is the battery behaving strangely, getting hot, giving off a smell or deformed? Unplug it or switch off the battery's circuit, and have it checked. If you bought the battery from us, contact our customer service.
- Do you see smoke or fire? Do not enter the room, close the door and leave the house.
- Call 112 and mention that it concerns a fire in a home battery.
Do not try to extinguish it yourself and do not move the battery. Moving it during the unstable phase is not desirable for the fire service either, writes the NIPV.
Frequently asked questions
Is a home battery a fire hazard?
A certified LiFePO4 battery with BMS has a low risk, but not zero risk. In 2024, the NIPV knew of no incidents with commercial home batteries in the Netherlands. With the right location, connection and smoke alarm, you keep the residual risk as small as possible.
Can a home battery be mounted or placed outdoors?
Only if the manufacturer permits it: with IP65 or IP66 and within the specified temperature range. The fire service prefers a sheltered spot such as a shed or garage.
Can a plug-in home battery be plugged into a power strip?
No. Connect it to a dedicated circuit used only for the battery, without an extension cable or power strip. According to the NIPV, several batteries on one socket is not intended.
Do I need to report my home battery to my insurer?
Most insurers want you to. A fixed battery usually falls under your buildings insurance, a standalone one under your contents insurance. Check your policy in advance.
Is a smoke alarm mandatory with a home battery?
In the Netherlands, a smoke alarm has been a legal requirement since 1 July 2022 on every floor with a living room, bedroom or kitchen. A smoke alarm in the room of the battery itself is advice from the fire service, not a separate legal obligation. We do recommend it.
Are you going to install a plug-in home battery yourself? Take the checklist above with you and view the plug & play home batteries. Want a fixed battery, a dedicated circuit or to expand beyond 20 kWh? Request a quote. The full range can be found under home batteries.
This article does not replace the manufacturer's installation manual or the advice of your installer and insurer.
Sources
- NIPV, "Thuisbatterijen en brandveiligheid" (10 December 2024)
- NIPV, "Incidentbestrijding lithium-ion thuisbatterijen" (26 March 2026)
- Brandweer Nederland, "Een veilige thuisbatterij" (consulted 5 October 2026) and "Thuisbatterij met stekker? Zo voorkom je brandgevaar" (7 April 2026)
- Verbond van Verzekeraars, "Verbond waarschuwt: thuisbatterij niet zomaar verzekerd" (20 August 2026)
- PGS 37-1, version 1.1 (April 2026), section 1.2
- NEN, "Norm voor thuisbatterij of niet?" (19 June 2025)
- Milieu Centraal, "Thuisbatterij: zonne-energie opslaan" (last modified 28 September 2026)
- Rijksoverheid, "Hoeveel rookmelders moet ik in mijn huis hebben?" (requirement since 1 July 2022)
- Ohneseit et al., "Thermal and Mechanical Safety Assessment of Type 21700 Lithium-Ion Batteries with NMC, NCA and LFP Cathodes", Batteries 9(5), 237 (2023)
- Product data Marstek, AEG, HYXi, Anker and AlphaESS: manufacturer documentation and product pages multi-solar.nl (5 October 2026)