Lithium battery safety guidance, standards & practical resources
Practical guidance to help organisations understand lithium battery risks, operational controls, U.S. regulatory considerations and the evidence behind battery safety products.
Start with the requirement. Understand the battery activity, site, rules and evidence before moving into individual products or systems.
Begin with the battery activity — not the product.
These two guides establish what batteries you manage, what happens to them operationally and what kind of safety requirement you may actually need to solve.
Work through battery activity, condition, charging profile, inventory and site context before narrowing the appropriate solution category.
Record battery quantity, energy, condition, charging activity, location and existing controls so the site requirement can be defined more clearly.
Go directly to Battery Safe Systems solution categories for storage, charging, isolation, transport and emergency preparedness.
View solution types →Guidance organised around the decisions you need to make.
Operational guidance, regulatory requirements and product evidence are separated so each question can be understood without turning every resource into a product-selection page.
Manage batteries through normal use and abnormal conditions.
Practical guidance for charging, battery condition and emergency preparedness before product selection begins.
Charging location, electrical arrangements, supervision, battery condition, heat and operating procedures.
Identify batteries that should leave normal circulation and establish separation, escalation and disposition pathways.
Recognition, alarm, evacuation, responsibilities, responder information and post-incident planning.
Understand which regulatory layer applies.
Workplace safety, fire codes, local adoption, technical standards and transportation regulations can affect the same battery operation in different ways.
The main regulatory hub explaining how OSHA, DOT / PHMSA, fire codes, standards and local authorities relate.
Understand OSHA's role, potentially applicable workplace standards and the relationship between hazards and controls.
Understand model codes, local adoption, battery-storage scenarios and the role of the Authority Having Jurisdiction.
Distinguish adopted codes, standards, product certifications, test methods and local approval.
Understand the U.S. hazardous-material transport framework, including damaged, defective and recalled batteries.
Look beyond the product claim.
Understand what testing, certification and product documentation actually demonstrate — and organise the evidence that internal and external stakeholders may need.
Evaluate test reports, certifications, listings, technical claims, product scope and stated limitations.
Organise battery inventories, site information, product evidence, procedures and other information that may support internal or external review.
U.S. battery requirements rarely come from one source.
Workplace obligations, fire and building codes, transportation rules, product evidence and local authority decisions can all affect the final battery-safety strategy.
Guide 06 provides the map. The more detailed Guides 07–10 then explore individual regulatory areas.
View U.S. Regulations & CodesTurn guidance into a usable site assessment.
Worksheets and simple tools can help structure battery inventories, procurement decisions and internal reviews.
Convert voltage and amp-hour data into watt-hours for inventory assessment.
Planned toolRecord battery quantities, energy, condition, charging activity and location.
Planned downloadQuestions to ask before accepting testing, certification or performance claims.
Planned downloadOrganise information that may be required for internal, insurer or authority review.
Planned downloadDeeper answers to narrower battery-safety questions.
The Resource Guides provide the permanent reference structure. Articles can address individual questions, interpretations, regulatory developments and specific applications.
The core 12 guides provide the site's long-term reference structure. Articles can then target narrower questions without duplicating those guides.
Turn the information into a defined battery-safety requirement.
Tell us about the batteries, quantities, charging activity, condition and site. Battery Safe Systems can help narrow the appropriate solution approach.
Find the Right Battery Safety Solution
Start with what your batteries are doing, where they are located and what could go wrong — then narrow the type of safety solution that fits the requirement.
The battery does not define the solution by itself.
Two organisations can use the same lithium-ion battery and still require very different safety measures. One may simply store spare batteries, another may charge dozens every night, while another may need to isolate damaged batteries or ship them between locations.
Begin by identifying what is actually happening to the batteries. Product selection comes later.
Storage, charging, damaged-battery isolation, transport and emergency response are different problems. A product designed for one purpose should not automatically be assumed suitable for another.
Batteries are being held between uses without routine charging inside the storage system.
The main requirement is controlling where and how batteries are recharged.
Batteries move between stored, charging and ready-for-use states as part of the same operation.
A battery is damaged, suspect, recalled or otherwise no longer suitable for normal storage with the rest of the inventory.
Batteries must be moved, shipped, collected, recovered or transferred between locations.
The requirement concerns detection, incident preparedness, containment or response capability.
Quantity alone does not describe the risk.
A useful battery inventory should describe both the number of batteries and the energy represented by them. Ten small tool batteries and ten large mobility batteries are not equivalent inventories.
Record the battery type, chemistry where known, voltage, capacity, approximate watt-hours, physical size and total quantity.
Tool battery, e-bike battery, mobility pack, electronics, industrial module or another format.
Total inventory and the maximum number expected to be present at one time.
Wh per battery and the approximate total energy represented by the inventory.
Dimensions, mass, terminals, removable packs and handling requirements.
A site might own 100 batteries, store 70, have 25 ready for use and charge only 5 at one time. Those figures should be considered separately.
Normal batteries and suspect batteries should not be treated as the same inventory.
Battery condition can change the requirement significantly. A battery that has been dropped, crushed, overheated, swollen, recalled or otherwise identified as suspect may need to leave the normal storage and charging process.
Continue through the site's normal storage and charging process, subject to the manufacturer's instructions and site controls.
Stop treating the battery as ordinary inventory and assess the appropriate isolation and escalation process.
Define isolation, handling, monitoring, disposal or transport requirements around the actual battery condition.
Charging changes both the electrical and operational requirement.
If charging occurs, consider more than whether a cabinet or charging station contains electrical outlets. The number of batteries being charged, charger type, electrical demand, charging duration, supervision and location all affect the requirement.
Electrical provision, ventilation, detection, fire performance and battery limitations should be evaluated as separate capabilities rather than inferred from the presence of charging outlets.
The same battery operation can require a different approach in a different building.
The location of the batteries affects access, evacuation, supervision, electrical infrastructure and how an incident could affect people or adjacent property.
Workshop, warehouse, school, office, charging room, loading area, outdoor enclosure or another environment.
Staff, students, visitors, residents, customers, contractors or members of the public.
Daytime only, continuously supervised, overnight, weekends or largely unattended.
Consider alarms, detection, suppression, compartmentation and emergency notification arrangements.
Door widths, stairs, floor loading, lifting equipment and routes may influence the practical product format.
Allow for fleet growth, additional chargers, larger batteries or changes to operating hours.
Once the requirement is clear, the solution category becomes much easier to narrow.
The table below is a routing guide rather than a product recommendation. One site may need more than one category, particularly where normal storage, charging and damaged-battery management occur within the same operation.
| Primary requirement | Typical question | Start with |
|---|---|---|
| Hold serviceable batteries between uses | How should we organise and protect stored inventory? | Storage |
| Create a controlled place for recharging | Where and how should batteries be charged? | Charging |
| Manage a working fleet through storage and charging | How should stored, charging and ready batteries work together? | Storage + charging |
| Remove suspect batteries from normal inventory | What do we do when a battery is damaged or abnormal? | Damaged battery isolation |
| Move batteries between locations | How should the battery be packaged, handled or transported? | Transport & handling |
| Prepare for a developing battery incident | What detection, containment or response capability is needed? | Emergency preparedness |
Tell us about the batteries and how your site operates.
The Guided Assessment captures the battery inventory, use case, charging profile, condition and site information needed to narrow the most appropriate solution approach.
Battery Inventory & Site Risk Assessment
Build a clearer picture of the batteries on site, how they are stored and charged, their condition, where they are located and what controls already exist.
Start by describing the operation accurately.
Battery safety decisions are often weakened by incomplete information. A site may know that it has “lithium batteries” without knowing the total quantity, energy, charging load, condition or how many batteries are actually present at one time.
The objective of this guide is not to produce a formal fire-risk assessment. It is to create a structured battery profile that can support further safety review and equipment selection.
These are related, but they are not the same thing. Keeping them separate makes it easier to identify the actual capability required.
Establish what batteries are actually on site.
Start with the physical inventory. Where possible, record battery type, chemistry, voltage, amp-hour capacity, watt-hours, quantity, dimensions and mass.
If exact data is unavailable, identify what is known and what still needs to be confirmed rather than assuming all batteries are equivalent.
Helps identify the physical format and operating use.
Tool pack, e-bike, radio, industrial moduleDifferent battery chemistries should not automatically be treated as interchangeable.
Lithium-ion, LFP, lithium-metal, unknownUsed with capacity to understand approximate battery energy.
18 V, 36 V, 48 VHelps establish energy where Wh is not already stated.
5 Ah, 14 AhGives a more useful indication of battery energy than quantity alone.
90 Wh, 500 Wh, 1,000 WhEstablish both total ownership and maximum inventory at the location.
40 owned / 25 normally on siteEverything the organisation owns.
Maximum expected at the location.
Batteries being held between uses.
Batteries actually charging at one time.
Identify batteries that should leave the normal inventory.
A useful inventory should also describe battery condition. Batteries that are damaged, swollen, overheated, recalled, leaking, physically deformed or otherwise abnormal should not disappear inside the same quantity figure as known serviceable batteries.
No known damage or abnormal behaviour and suitable for the site's ordinary operating process.
Impact, unusual heat, swelling, charger fault, abnormal behaviour or uncertain condition.
Known damage or another condition requiring a separate handling, isolation or escalation process.
- Who decides whether a battery is safe to return to service?
- Where is a suspect battery placed while that decision is made?
- Can damaged batteries be physically separated from normal stock?
- Who is notified when abnormal battery behaviour is discovered?
- What happens to recalled or end-of-life batteries awaiting removal?
Describe how charging actually happens — not how it is supposed to happen.
Charging behaviour can materially change the site requirement. Identify where charging occurs, how many batteries can charge at one time, how long charging continues and whether the area remains supervised.
Record the realistic maximum rather than the typical daily number.
Manufacturer chargers, mixed charger fleet, third-party equipment or unknown.
Short daytime charging, full-shift charging, overnight or continuous.
Continuously occupied, periodically checked or largely unattended.
Number of circuits, available load, extension leads, power strips or fixed infrastructure.
Whether batteries remain connected after reaching full charge and how charger faults are identified.
A large battery fleet may have a relatively small simultaneous charging demand, while a smaller fleet can create a significant load if most batteries charge at the same time.
Consider what surrounds the batteries.
Battery safety does not exist independently of the building. The same battery activity can present different consequences depending on occupancy, location, access and neighbouring materials.
Staff, students, residents, customers, visitors, contractors or members of the public.
Workshop, corridor, storeroom, loading bay, dedicated room, warehouse or outdoor location.
Consider escape routes, doors, stairs, access routes and emergency responder access.
Packaging, timber, chemicals, fuels, stock, equipment and other combustible materials.
Heat, direct sunlight, moisture, dust, cold or mechanical damage exposure may need consideration.
Manual carrying, carts, pallet handling, lifting devices or vehicle access.
Record what protection already exists before adding more equipment.
Battery products are only one layer of site safety. Existing detection, alarms, building fire protection, supervision, procedures and training should be considered as part of the wider arrangement.
What is detected, where and how quickly could staff be alerted?
Who receives the alarm during occupied and unoccupied periods?
Sprinklers, suppression, compartmentation and other existing protection.
Written instructions for charging, inspection, damaged batteries and escalation.
Who can inspect batteries, isolate equipment and initiate the emergency process?
Determine whether controls remain effective after staff leave the site.
Product capability, building protection, procedures and people should be considered as interacting layers rather than substitutes for one another.
You should now be able to describe the requirement in operational terms.
- Battery type
- Chemistry
- Wh per battery
- Total quantity
- Physical size / mass
- Storage
- Charging
- Handling
- Transport
- Damaged battery pathway
- Occupancy
- Location
- Access
- Combustibles
- Environmental conditions
- Detection
- Alarm
- Fire systems
- Procedures
- Training / monitoring
Use it to start a Guided Assessment.
Provide the battery inventory, charging activity, condition and site information and Battery Safe Systems can help narrow the relevant solution approach.