Energizer Universal 18000 mAh Portable Battery Back and Charger

[metapuff]

will this work for ecigs? worried it's too powerful

Woot : One Day, One Deal (SM)

• Battery Cell: Lithium Polymer
• Power Capacity: 18000 mAh @ 5v
• Rated Input: DC 19V, Max 3500 mA
• Rated Output: DC 5-20V, Max 3500 mA
• Charge Time: ~4 Hrs
• Duty Cycle: 500
• Dimensions (W x L x H): 7" x 4 1/2" x 3/4"
• Weight: 1 lb

 

[metapuff]

or this one. much cheaper

Battery holder: AA x 4 with USB interface connector and Belt clip ("Out" / "IN" / "OFF" power switch) - RoHS Compliant

 

[wdave]

Excellent question. I'm also unsure about how much is enough. I also request that those in the know give more than just a yes or no answer. How about minimal specs in order to charge X number of batteries (for my 510 megabatts, of course)?

BTW, so far I've heard one needs a portable UPS to get the job done right

TIA,
Dave