what battery pack for backpacking, expedition or regular hiking for various day...?

ciccio90

New member
hi in undecided about what battery pack for backpacking, expedition or regular hiking for various day, in my recent research i have try these battery pack that googd or not for that i see they are the best choice on the range of the 100/150 dollars.....however i d'ont chose the goal zero yety pack beacause i must take they on my shoulder.....however are they: this is the first time that i see one such it, http://chargeall.com/product/portable-power-outlet/ the rav http://www.ravpower.com/ravpower-23000mah-portable-charger-external-battery-charger.html , and the volatic http://www.voltaicsystems.com/v72 and the powergorilla https://www.powertraveller.com/en/shop/portable-chargers/professional/powergorilla/ they are the more affordable for the price and quality at all, but if you have a better good coucil about one type more good for the total Mah or the quality and price or rugged case or waterproof i luky very much, i remeber that now i have a 20 watt for the solar recharging ! good things and great forum!:ylsmoke:
 

libarata

Expedition Leader
Is price your only requirement? It may help folks if they knew your daily usage, and equipment.
 

CaliMobber

Adventurer
Do you need to charge laptops? Cause I would just go with the anker 15000mah for only $40 right now and its tried and true. you 20w solar can recharge that pretty fast. 20w/5v= 4amps so roughly 5hrs of good sun. I have the 10000mah and it can charge my phones a few times.

http://www.amazon.com/gp/product/B0..._m=ATVPDKIKX0DER&pf_rd_r=00HQFJSK6RKQK708MJCC

Or even this 20000 for $80. Im a big fan of anker as you can see, look at those reviews!

http://www.amazon.com/20000mAh-Alum...1389740&sr=1-3&keywords=20000mah+battery+pack

I would not feel comfortable trying to charge a laptop off these smaller battery packs even though other brands try and say they can charge some. The output is just not enough. You need the next level ones that cost like $300.
 
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ciccio90

New member
hi i need to charger laptops but so many other electronic device so in the trek and in off road or house, gpe, smartphone, 18650 batteries and rechargeble olights and ham radio ht....i search the best way, for the characteristics
 

mib1392

Observer
Do you really need 110V? Which device nowadays truely runs on AC?
I have an Anker Astro Pro 2.
It has a DC output for 12/16/19V and 1 USB out. I charge/run my Thinkpads with it (my X230t nominally requests 20V and complain a little about "not enough power" when plugging in - plugging out and in again then convinces it to shut up and it charges - my X60t runs and charges straight ahead). All adapters come with it (for basically everything: my eeePC, the dock for the HamRadio, etc etc). It has about 60W output, so you might even run a very tiny AC converter off it, if you REALLY need it. Oh well, if you're an apple fanboy, you can't charge your ibooks, as there are no adapters. What a nice company. Better go to Starbucks and plug it into the wall socket :)

I use it mainly for conferences rather than camping, but it also powered the LED strips in the camper shell for some time. If you buy the ones with a standard plug, it's all plugnplay. I posted a list what to order here
 

Xterabl

Adventurer
Here's a question: All these products throw out capacity numbers like 23000mAH, 15000mAH, etc.; but at what voltage?
Is there a STANDARD?
IMO, it would be much more useful if they specified Watt-hours.
 

ciccio90

New member
i agree with you, infact i hope that they are rated to 20A at 12v but i don't think so.....now ii doing one research
 

mib1392

Observer
They all relate to (the marketing-friendly) 3.7V of a standard LiIon battery that sits inside them. Likely the nominal number of what's printed on the cell.
I.e. 20Ah @ 3.7V = 74Wh of battery. Take it by maybe 80% efficiency when converting to 5V USB, 12V whatever etc.
The more you trust a manufacturer, the closer the real world is to the numbers (true capacity to the one stated and efficiency higher).

12V 20A? No way, it would likely melt. 3-5A will be realistic at best @12V. It's Lithium cells after all, anything near 100W would be worrysome for me. I want a battery, not a hand granade.

As for real world capacity:
I'm happy with the Anker Pro2. It about doubles my runtime of my X230t, and the IBM laptop battery has a residual capacity of about 50Wh (once >60 when new).
So 74Wh of the Anker * 0.8 would be 60, and that's what I'd guess I almost have.
 

ciccio90

New member
hi mib, just comment, in my think i want uniform all my trek/survival/ham equipemnet and home prepared, under only one source i remeber that are small comsuption, because at the greatest electric device only the ham radio can dry 5/8A......however i still try review of the http://www.aspectsolar.com/energybar250-power-inverter-battery.html because for wight and utility i think is the best so on the way the only problem is the it and charger all are doiing for the american ac socket to 110v and not european 220v! i so can wait the new yaers for new product....
 

Xterabl

Adventurer
mib1492, thanks for your response.
I also was looking for >10A at 12V and was sourly disappointed with the offerings.
If these jump starters are rating only at 3.7V, then they and their customers are in for a world of hurting surprise.
Anyways, I found my own solution, via a 10AH @ 14.8V LiFePO4 battery with custom connector(s).
Battery was purchased at local Fry's electronics store, and connectors were stuff I magically found in my garage.
It powers my Edgestar fridge for >10 hours overnight (i.e. ambient temp ~60-65 degrees F).
 

inter

Observer
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Victorian

Approved Vendor : Total Composites
I got one those last month when I was in China... 10.000mAh ! Gets me about 6-9 charges for my Iphone.
IMG_3892.jpg
 

ciccio90

New member
victoriian i have the same, but is about 5-7A realy, beacause o charge my alcatel with 2500mah about 2-3 time however is good!
inter,hi in what way i can replace american 110AC adapter by europe 220AC adapter?
 

inter

Observer
ciccio90
at first ask them, what kind AC wall charger included?
But since energybar has
1) switchable AC115/230V inverter,
2) universal AC output
and their slogan is "Freedom is being fully charged – no matter where in the world you go"
maybe they are using normal AC 100-240V 50/60Hz charger.
In that case, you'll have a minus one problem.
Add 12V DC to 19V DC power сonverter for your notebook,
and be happy again.
 

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