Never out of power – new and unique portable fuel cell charger that runs on ordinary water (um …)

[kristopher]

5. 4ea rechargeable AA batteries w/charger = $20

Your comparison:

For example, a sodium silicide fuel cell in reasonable production volumes will be 10 times less expensive than alkaline batteries and six times less expensive than disposable lithium batteries, including the cost of the fuel cell. Put another way, in order to buy enough alkaline batteries to charge a cell phone 100 times (800 W-hrs ), a consumer will pay about $967. Lithium batteries are a bit cheaper and will cost about $512 for 100 charges. For a sodium silicide fuel cell, consumers will pay only $89 for 100 uses. Including the cost of the fuel cell, consumers will save nearly $900 by charging their electronics with a sodium silicide fuel cell.

$8.50 = 1 each universal battery operated charger
$20 = 4ea rechargeable AA batteries w/charger
$1 = 10 kwh of grid electricity


<$30 and you'll get far more than 100 uses. Probably on the order of 1000 plus. Also there are far more places to hook into the grid to replenish the field system than there are outlets selling sodium silicide.

I'd suggest adding another 12 additional rechargeable batteries for $17 just to power the remotes and LED flashlights that are everywhere around the house.

Total $47

Places to buy above items:
4ea rechargeable AA batteries w/charger
http://www.bestbuy.com/site/Energizer+-+NiMH+AA+and+NiMH+AAA+Battery+Charger/9514126.p;jsessionid=B5B6F762DF63D87C47E46A67A467A8E4.bbolsp-app04-52?id=1218128760102&skuId=9514126

1 each universal battery operated charger $8.50
http://www.amazon.com/iGo-powerXtender-Universal-Battery-Operated/dp/B000O2X2OU

12 ea rechargeable batteries for $17
http://www.all-battery.com/12pcsNiMHRechargeableBatteries3Cases-91110.aspx?zmam=55942680&zmas=1&zmac=1&zmap=91110&gclid=CMSp2Kiit60CFbEDtgodQj4iuQ