Rules for lithium-ion batteries
Lithium-ion batteries are subject to specific rules inside university buildings. Here you can find answers to common questions about which batteries are covered, what you may bring inside and what exceptions apply.
The rules have been introduced to reduce the risk of fire and make Stockholm University buildings safer.
FAQ
Which batteries are covered by the rules?
Lithium-ion batteries for electric bicycles, electric scooters and similar means of transport may not be brought into Stockholm University buildings, regardless of capacity.
An exception applies to vehicles used by people with disabilities.
The prohibition also applies to other lithium-ion batteries with a capacity of more than 10 ampere-hours (Ah). 10 Ah is equivalent to 10,000 mAh.
Can I bring the battery inside if I do not charge it?
No. Batteries covered by the rules may not be brought into, stored or charged in University buildings. This applies even if you do not charge the battery or keep it under supervision.
Can I still charge my mobile phone and laptop?
Yes. Mobile phones, laptops and other small electronic devices with lithium-ion batteries below 10 ampere-hours (Ah) may be brought into University buildings and charged as usual.
Always follow the manufacturer’s instructions.
What applies to batteries used in research, teaching and workshops?
There is no general exemption for research or teaching.
Lithium-ion batteries below 10 Ah for machinery and equipment may be stored and charged in suitable locations in laboratories, workshops and similar premises.
Why has the University introduced these rules?
The rules are intended to reduce the risk of battery fires causing harm to people, property and the environment.
If a lithium-ion battery catches fire, the fire can develop rapidly and produce intense heat and toxic smoke. This can make safe evacuation more difficult and cause significant damage.
The President has therefore adopted rules on bringing lithium-ion batteries into, storing them in and charging them in Stockholm University buildings.
Last updated: 2026-09-23
Source: Property Management Office