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DSEAR risk assessments · Sector
DSEAR risk assessments for battery charging areas
Charging lead-acid batteries produces hydrogen. It is flammable from 4% in air and disperses quickly in good ventilation, but in a poorly ventilated bay it can collect. The assessment shows whether your charging area needs a zone, and what has to stay outside it.
- CharteredAssessments led by a CMIOSH member
- DSEAR assessments onlyNo fire risk work, no training
- Fixed priceAgreed before we attend
- No equipment salesAdvice you can take at face value
What we assess
Where DSEAR applies on a battery charging areas site
| Area | Substance | Source of release | Typical classification | Typical controls |
|---|---|---|---|---|
| Charging bay | Hydrogen | Charging and gassing of lead-acid batteries | Zone 2 or none | Ventilation, charger position, no ignition sources in the bay |
| Dedicated battery room | Hydrogen | Ventilation failure | Zone 2 | Airflow monitoring, ignition sources excluded |
| Battery change area | Hydrogen | Connecting and disconnecting batteries | Assessed case by case | Connector design, procedures, spark control |
| Chargers and electrical equipment | Ignition sources | Sparks and hot surfaces | Located outside zones | Position, equipment suitability, inspection |
Classification depends on quantities, ventilation and layout. A real report classifies each source on your site.
On site
What we check
- Battery type and charging regime
- Room volume, ventilation rate and how failure would be noticed
- Where chargers, sockets and lighting are located
- Battery changing procedures
- Whether the area is used for anything else that adds ignition sources
Typical clients
Sites we assess in this sector
Large lithium-ion or grid-scale battery storage installations are outside our scope.
Coverage
Where we survey battery charging areas sites
We visit sites across England, Wales and Scotland. These are some of the areas we are asked about most often.
Questions
Before you ask for a quote
Does every charging bay need a hazardous zone?
No. With enough ventilation the result is often that no zone is needed. The assessment confirms that, and records the ventilation figures so you can show why.
Can chargers stay in the same room as the batteries?
It depends on the zone and the charger design. Where a zone is identified, the assessment sets out whether the charger position needs to change.
Get a quote
Tell us what you store and where
A quick call or email is enough to confirm scope and price. It helps if you can send:
- Site address and type of business
- Flammable liquids, gases or dusts you use or store, with rough quantities
- Safety data sheets, if you have them
- A simple layout plan or a few photos
Contact DSEAR Specialists
Ferryhill
DL17 8DQ
Response within one working day.