Thursday, October 11, 2018

"Smart" bag safety


Smartbags are becoming more common at airports this year as the technology is becoming more affordable and available.  This year, many airlines established a policy in line with the IATA guidelines which prohibits Smartbags with non-removable batteries to be transported onboard their flights.  It is also common airlines policy not to provide tools or assist in the removal of these batteries from the luggage. 

Another product which is available is the “build your own” smartbag.  Luggage manufacturers are designing luggage where you can install your own lithium battery as a power source.   Additionally, a new trend are the luggage tag powerbanks.  These are powerbanks which hang on the luggage and also act as an identification tag.  These tags can get caught in the belt loaders, conveyers and get damaged resulting in fires. 

Powerbanks, which the primary purpose is to provide power to other devices, are classified as UN3480 Lithium Ion Batteries, are forbidden in the cargo hold.  Cheap or grey market powerbanks are one of the greatest concerns, these devices or the batteries contained within may not meet certain consumer product safety standards such as UL1642 (cells) or UL2056 (powerbanks).  This means that the batteries have not been tested to failure by an independent ISO17025 test lab and may be at a greater risk of thermal runaway
. 
According to the Royal Aeronautical Society, there has been a 288% increase in inflight battery incidents since 2015.  As consumers demand more powerful batteries at lower prices, these grey market batteries are attractive to the consumer and are easily available on many of the large e-commerce platforms.  Additional, aftermarket chargers (plugs and cables) are also considered to be a contributing factor in incidents where overcharging may be a cause.  Manufacturers often include a battery management system in the device and in the charger which have a sort of symbiotic relationship.  The charger and the device work together to manage the charging process, this is known as a “handshake”.  Grey market batteries and after-market chargers do not have this to regulate the electrical input and charging process.  Even a slight difference in voltage over time can cause failure. 
The combination of a grey market battery and an after-market charger could significantly increase the risk.  So, what can we do?
  •  Only purchase Smartbags where the battery is easily removable at any point in your trip. 
  •  Only purchase batteries and powerbanks from well-known and reputable manufacturers and retailers (There are a lot of counterfeits sold in e-commerce). 
  • Only purchase powerbanks which have a certification from an ISO17025 test laboratory such as UL.  These can be identified by some of the below marks on the device:



  •  Only use the charging plug and cable which came with the device, avoid using cheap aftermarket plugs or cables. 
  • Take care to handle your powerbanks and device with care, the internal workings of the batteries and management systems are quite fragile
Follow these tips and you can mitigate the risk in your own baggage when you travel!

Tuesday, July 12, 2016

Very Large Lithium-ion Batteries | Batteries content from Power Electronics

20 MWh batteries on the horizon, 350KWh batteries in commercial use.  These are currently being or will need to be shipped.  Of course the Very Large batteries are being considered for use in power grids and will most likely ship via ground to start, I am certain that at some point, these will need to move by air.  The regulations will need to catch up to this technology very quickly.  I doubt that batteries of this size were considered when the regs for UN3480 were written.



Very Large Lithium-ion Batteries | Batteries content from Power Electronics

Tuesday, April 19, 2016