Portable Charging Devices

13 posts / 0 new
Last post
jerm03
Offline
Last seen: 5 days 21 hours ago
Joined: 12/03/2012 - 15:07
Posts: 881
Location: SW United States
Portable Charging Devices

I bought a couple of cheap portable charges off eBay. Not too bad, but none lasted long enough to charge my Kindle without recharging. Not really a surprise considering the less than 3,000mAh.
What are your experiences with these devices and brands?
Thanks,
Jerry

L4M4
L4M4's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 12/08/2013 - 13:43
Posts: 1386
Location: Germany

Buy (real) Xiaomi and be happy with it Wink

jerm03
Offline
Last seen: 5 days 21 hours ago
Joined: 12/03/2012 - 15:07
Posts: 881
Location: SW United States

Link? Thanks, Jerry

L4M4
L4M4's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 12/08/2013 - 13:43
Posts: 1386
Location: Germany

The most common one: http://www.banggood.com/Original-XIAOMI-5_1V-2_1A-10000mAh-Power-Bank-For-Smartphone-p-977406.html
or smaller: http://www.banggood.com/Original-XIAOMI-5000mAh-Ultra-thin-9_9mm-Power-Bank-For-Mobile-Phone-p-957081.html
or bigger: http://www.banggood.com/Original-Xiaomi-16000mAh-Universal-Battery-Charg...

jerm03
Offline
Last seen: 5 days 21 hours ago
Joined: 12/03/2012 - 15:07
Posts: 881
Location: SW United States

Thanks, L4M4,
I ordered this one.
http://www.banggood.com/Original-XIAOMI-5_1V-2_1A-10000mAh-Power-Bank-For-Smartphone-p-977406.html

Thanks, again, Jerry

The Miller
The Miller's picture
Offline
Last seen: 2 years 2 months ago
Joined: 12/14/2015 - 12:08
Posts: 9908
Location: Charente France

Well too late for me to say, buy just the casing and electronics part and use 18650 cells.
YThis is what I have done, feels very good to be able to charge the phone with the cell in the torch if needed.

FlashPilot
FlashPilot's picture
Online
Last seen: 8 min 3 sec ago
Joined: 05/10/2010 - 16:07
Posts: 4831
Location: USA

Great choice Jerry. The Xiaomi comes with quality name brand cells and reliable quality electronics. Just the cells alone would cost you more than the entire power bank so its a heck of a bargain. Google finds dozens of positive comments, reviews and tear-downs.

chenko
Offline
Last seen: 3 months 3 weeks ago
Joined: 05/28/2012 - 11:30
Posts: 614
Location: Italy

I have myself and have bought for presents many XiaoMi power banks, and they are really great stuff. You won’t be disappointed. Smile

WarHawk-AVG
WarHawk-AVG's picture
Offline
Last seen: 1 year 7 months ago
Joined: 01/04/2014 - 06:47
Posts: 5071
Location: H-Town

You still have to understand boost circuits are incredibly inefficient…even though any charger “claims” a certain mAh rating…expect not only the actual rating to be considerably lower (best is 80% worst is maybe 20-25%) then the inefficiencies of the boost converter makes that number even lower in the range of 40-60% efficient…[of course these are just numbers pulled out of my butt…but most know that these chargers are NOWHERE near the same output as input in mAh rating.

With that said…the XIAOMI are usually the ones that use the best batteries and have the highest boost converters for efficiency so they end up being the best of the best

I have heard good things about them…so it should serve you well

WarHawk-AVG
WarHawk-AVG's picture
Offline
Last seen: 1 year 7 months ago
Joined: 01/04/2014 - 06:47
Posts: 5071
Location: H-Town

agreed

Sokor12
Sokor12's picture
Offline
Last seen: 6 years 2 weeks ago
Joined: 12/31/2015 - 04:32
Posts: 6
Location: Jembatan lima

I think I agree with Xiaomi election. the right choice

Coscar
Coscar's picture
Offline
Last seen: 22 hours 3 min ago
Joined: 01/03/2016 - 20:16
Posts: 797
Location: Gulf Coast
The Miller wrote:
Well too late for me to say, buy just the casing and electronics part and use 18650 cells. YThis is what I have done, feels very good to be able to charge the phone with the cell in the torch if needed.

This interested me, but I did not see where you could purchase just the casing and electronics. Do you have a link? Thanks

Im not a Pessimist …. just an Optimist with a lot of experience


A little John Prine

justanotherguy
Offline
Last seen: 4 hours 24 min ago
Joined: 11/26/2012 - 22:11
Posts: 1080
Location: NW

I picked up an Anker 20100 on amazon for $29 with a code from slickdeals… beyond that it seems like a lot of work….