iphone portable chargers

I have one of these:  https://www.amazon.com/Anker-PowerCore-Portable-Ultra-Compact-Fast-Charging-Technology/dp/B0194WDVHI/ref=sr_1_1?ie=UTF8&qid=1468741901&sr=8-1&keywords=anker+powercore+10000

mine weighs 3.75 ounces.  It’ll charge my iPhone 6s at lease twice from almost dead.  You’ll need a cable of your own.

<span class=”Apple-style-span”>mine weighs 3.75 ounces</span>

are you sure thats correct? … as the anker powercore you linked to has 3 18650 bats, each of which weights ~1.5 oz, then add the electronics and casing …

to the OP … theres 2 options

• getting an integrated pack such as an anker … easy to use, easy to charge, less fuss, cheaper package
• getting a separate charger/powerpack and bats … more flexible and a tad ligher (only need to bring one bat vs all 3 for the anker listed, or you can carry a ton of bats for long trips), of benefit if yr headlamp uses 18650 bats anyways, bats easily replaceable when they wear out … but probably more expensive these days and more fussy

pick yr poison …

if buying an integrated pack make ABSOLUTELY sure that it uses brand name bats such as panasonic, LG, sanyo, samsung, sony .. not the cheap crap … anker only uses good bats

whatever the mAh rating (at 3.7v) knock off around 20%+ due to efficiency loss …

;)

Thats what my wife’s kitchen scale says, though I suppose it could be off a bit?

Sorry for the crappy pic, it took me a little work to get it under 1M

yak …

if that is indeed an anker ~10000 which uses 3 18650 bats im betting the scale is off … the bats alone are ~45g each … so roughtly 4.5 oz just for the bats, then add in the casing and electronics

i believe anker lists the weight at 6 oz+

if indeed you have a ~10000 mAh bats+casing that weights under 4 oz … i would immediately contact tesla and sell the secret to them for millions, they would be VERY interested in such technology as their cars use the standard 18650 bats and a 30%+ weight reduction in their powerpack would have immense ramifications

;)

On their site, Anker lists the weight of that battery as 170g/6 oz. So it does seem your scale is a bit off.

Maybe that’s why my whole pack feels a lot heavier than that darn scale tells me the sum of the parts ought to weigh :-(

My Anker 10,000 weight 6.325 Oz.  I get around 4 iphone charges out of it.

For “power pack” type chargers that store energy to top off your phone – the weight is just a function of how many batteries are inside the case and the weight of the case.

Ie: A carger that holds 2 charges will weigh twice as much as one that holds 1 charge just due to the need for it to house twice as many batteries. There is also a tiny bit of extra weight for the bigger plastic case.

Most of the chargers in a similar price range will use the same battery technology.  But if you go from a charger using NiMH batteries to Lithium battries, you can save some weight. Maybe 20% ish less weight for about a 150% price increase.

All good comments, all much appreciated – thanks for taking the time! Jim.