Limit Placed on Power Banks, Batteries for Phuket Air Passengers
Wednesday, November 26, 2014
PHUKET: Power banks cannot be packed in baggage, Airports of Thailand has ruled from today in upgrading protective measures at Phuket and other airports.
Passengers may still carry spare batteries on board in hand luggage with limits.
Passengers may carry on spare batteries of 100wh to 160wh,with a limit of two. People carrying two batteries will have them restricted to 100wh each.
Spare batteries over 160wh cannot be carried.
The new measures were approved at a meeting in Bangkok last week and relayed by letter to officials at Phuket International Airport.
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Comments
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Watt hours is an unusual reference as batteries are specified in milli amp hours.(mAh).
So to determine the watt hours they have to multiply the mAh x voltage.
There may be a mistake in the info provided by the airport.
Posted by
Manowar
on
November 26, 2014 18:59
Correction
Ah= wh / v or
wh = Ah x v.
It was late, John Walker and Jim Bean were typing for me
Posted by
Manowar
on
November 27, 2014 02:29
in other words all of mobile phone and most of PC batteries are allowed.
- but beware MoW's offered formula
actually most of such batteries are labeled in mAh, few simultaneously in wh, but can't remember batteries labelled only in wh
Posted by
Sue
on
November 27, 2014 03:05
Sue,
Read the original post, " wh is an unusual..."".
Batteries are always labeled in mAh and the voltage. So I dont know how the average customs or airport security person will be able to determine what is allowed given the many different combinations of voltages and capacity without doing a calculation for each storage device.
I believe the intention is to limit the amount of power storage in any one area to a level that should a fire occur, it is easily controllable.
Batteries such as lithium polymer in the form of a gel liquid and used for high capacity storage pose such a high risk that you recharge them in a fire proof containers.
Posted by
Manowar
on
November 27, 2014 06:33
Regardless of semantics of rating and labeling; one wonders why? Is this a worldwide thing related to potential instability of chemical composition or just weight? Bit illogical and pedantic methinks.
Posted by
david
on
November 27, 2014 06:42
Manowar,I understand that those on sale in U.S. after January 2009 and with capacity above 100wh should have wh labeling, that is probably why I have seen some rated in wh.
david, yes it is a worldwide thing based on ICAO and IATA regulation, its summary with US focus takes 13 pages, but DHL instructions 55 pages... Consumers shoukd be very professional in batteries sending or transporting to be able to comply!
http://goo.gl/kKBajQ
http://goo.gl/phBQDD
Posted by
Sue
on
November 27, 2014 12:34
David,
It's definately not being pedantic. The need for high capacity, low weight batteries means the new types are less stable.
Over the specified current discharge can in some circumstances also result in explosions.
To understand just what can occur search and have a look at some videos titled "LiPo battery fires or explosions".
Of course some of the destructive testing of these is intention but the results are eye opening.
Posted by
Manowar
on
November 27, 2014 12:52
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These devices are usually rated in Mah whats the conversion ??
Posted by LivinLOS on November 26, 2014 13:10