expedition charging

Ian

Member
I've never seen these but it can only provide 6.5W charging. Enough to charge one iPad or one smartphone!

It's also slightly disingenuous, the 3800mAh battery will not be charged in 1-2 hours from the fuel cell, thus would take 4-5 hours with nothing else charging.

However, if that's all you need then good.

It also gives no information on how long a tablet lasts or if the cell gets poisoned by dirty water.
 

cavermark

New member
Could be useful to recharge a PDA when digital surveying from underground camps....

Are any chemists able to comment on how eco friendly the "puck" is (e.g. does is break down to a toxic residue... )

"?The Puck contains: Sodium Silicide, Sodium Borohydride and 12 g Aluminum (= 1 x 33 cl soda can). Therefore we recommend that you throw the used Puck in the recycling bin for Metal, whenever possible.."
 

Olaf

New member
The FAQ also says that one myFC Puck (the salt-cartridge) provides about as much energy as 6 AA cells, and if you have slightly better cells that figure is probably closer to 4 AA cells. So while the basic idea sounds great at first, you are probably better off taking a stash of regular Lithium-based power banks for now.
 

Duncan Price

Active member
http://www.powerpractical.com/ would be more eco-friendly as you could capture the waste heat from your stove to charge your batteries.

The used puck should be sodium silicate and sodium metaborate - the borate salt is mildly toxic.  A lot of energy goes into making the puck so its not very "green".

Quite possibly using highly contaminated water could poison the hydrogen fuel celol. The manufacturer's admit this.
 
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