Cheap Chinese batteries. I've been pretty hard on them. With good reason though!
As I've showed in previous videos some of them are
but have I found one that
is actually pretty good??
I heard of these PKCell 18650 batteries on
a vape group on Facebook. Someone was on there asking if they could use them for
their vape mod and the general advice was no - because not much was known about them.
so, I decided to have a look into them. Now they are a cheap 18650 cell
they are on eBay they, come from China but they don't make ridiculous claims
for either the capacity OR the amperage, so I thought I would buy some and have a
look for myself to see how they compare. Now, in a lot of ways these are the polar
opposite to the Powerhouse batteries I tested in the last video. They come
with no retail packaging at all, they come in a plain envelope just
shrink-wrapped together, four batteries with very little markings. No a word of note -
they don't have any of the markings they are meant to have by UK legislation but I
don't think that seems to be particularly enforced, the main thing
is to see how good they are and how good they work. Weight wise, they all came in
over 40 grams - between 42 and 45 - a little bit of variation there but heavy
enough that there could be enough material in there to make a good cell.
So as per usual, we'll get them into the charger - they've been fully charged up to
4.2 volts - and we'll run them right down to two and a half volts.
Now, again, strangely enough for a cheap Chinese battery, there is a lot of information
available on these, and the manufacturer states that they should only be
ran down to three volts, but we'll take them down to two and a half.
Let's see how they perform.
Well that's quite good! They have the exact capacity that the manufacturer
claims over the voltage range that they claim, with all four batteries giving
2,200 milliamp hours between four point two volts and three volts.
You can see there that with 18650 cells there isn't much benefit going below 3 volts
because you don't get much capacity return for that extra half volt drop
I wanted to test them on that same range that I've used for previous batteries.
As I explained in the last video, the charger doesn't put a big load on
these batteries when it's discharging them - the current draw topped out about two
amps - these are spec'd at 11 amps continuous. So, we'll use the same method we used in
the last video... I'll adjust a coil resistance to draw about 11 amps from
one of these on a full charge; obviously that I current draw will drop as the
voltage drops, but it should still be drawing about 8 amps when it's flat. [3.0v]
At the same time we'll keep an eye on the battery cell temperature and that'll let us know
if it's struggling to keep up, or if it's supplying that power fine.
Well, that surprised me. I expected these to struggle a bit but they handled
everything fine - including some very long burn times - I think the longest was
about seven minutes continuous burn. Like I mentioned earlier, toward the end of
the test, the current draw would have dropped to around eight amps but they
were still getting worked quite hard. And, while cell temperature did rise -
which is normal for a battery being discharged quite hard - it didn't rise
that high; it didn't rise to any level we needed to worry about.
Is this a vaping battery. Probably not. Not unless you vape at very low wattages or you
intend to connect a few of these together and parallel to give you a
greater current capacity. And that's just too much messing about so get yourself a
higher rated battery if you're going to vape. But for diving, cycling or airsoft
weapon lights - which is how I got into these in the first place - they are a
decent choice. With the 22 hundred milliamp hour capacity, you'll get good
run times on low current devices. Also, if you're wanting to build your own
battery packs or power banks, they could be a good shout for that as well.
I'm actually quite impressed with these for the money and they get even cheaper if
you're buying them in bulk. My only slight point is that the majority of
listings on eBay for these... they list the 2C version, which is a constant
current output of 4.4 amps rather than the 5C or 11 amp battery that I
received... but again, for flashlights and low
current devices that doesn't really matter. Even the support from PKCell was
pretty good. I emailed them for a spec sheet before I tested these, and they replied within a day.
Does this change my opinion of cheap Chinese cells?
I always knew there was good ones - most of the cool stuff we use day in and day out
comes in part or whole from China already. The problem is with such a huge
industry, there's also a huge number of places selling absolute rubbish
counterfeits and low-quality. The key as always is to be able to separate the good
stuff from the bad, and PKCell seems to be pretty decent.
GTF ultrafire and so on, are utter
This will be the last battery test I do for another wee while. I want to get on
with some other things... I was asked to look at the alleged 12000 mAh
18650s that pop up on eBay and Amazon from time to time... we know
they're bulls**t, we don't even have to check. That capacity just isn't possible.
I'll leave it there for now. If this has been useful do all that
usual stuff, like and subscribe - I'd really appreciate it - and until next
time, take it easy, and I'll catch you in the next one.
For more infomation >> CHEAP eBay 18650s GOOD or ??? | PKCell 2200mAh 11A | Unbox, Test & Review - Duration: 8:45.-------------------------------------------
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BBFF2017 Official Selection: JUNGLE - Duration: 1:55.
I was desperate to escape the well-worn path.
Work, marriage, kids...not me.
I wanted to experience the extraordinary
Which is why I ended up in the jungle
This is my friend, Yossi Ghinsberg. Good to meet you. Good to meet you too.
I told my parents I'd be back in a year, but...
I don't think I'm ever going back.
There's nothing like the jungle at night
Insects, birds... It's like their screaming at you.
And then suddenly...
it's just you.
And whatever you came looking for
Do you want to be like every other tourist?
Anybody can go to Machu Picchu
But the jungle, this guy can take us there.
How do you know that Karl is telling the truth?
It's why you're here
The hidden world
Perfectly balanced
The problem is us,
We're the cancer.
[GUNSHOT]
Karl, what are you doing?
The only guy who knows where we are and what we're going to do
and he just walked away
KARL!
STOP!
[Shouting]
The river...
Kevin!
You have a map and people are coming to save you
All you have to do
is keep going...
and going...
and going...
and going
and going and going and going
and going and going and going
and going and going and going
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f(x)s Luna created a tutorial on how to apply body makeup on the arms, breasts, and abs. She taught her viewers how to make their arms slimmer, breasts bigger, and abs clearer, all with just makeup.
She first started with arm makeup, using a 5:5 combination of body oil and tanning lotion to create a contour shade. Then, she rubbed the contour shade on the underside of her arm to extend the natural shadow.
She then highlighted the most prominent parts of her arms to accentuate the shadows when the sun hits them.
To create the image of a bigger bust, she used some contour shadow and a brush to draw a V shape around her cleavage.
She made sure to blend well so that the contour shadow didnt clump or get blotchy on her skin. She then used a contour stick to drew three lines down her stomach to create the illusion of abs.
She recommended drawing a small gap in the middle to illustrate the gap between each ab before blending. Finally, she highlighted the parts of the abs that stuck out to create the illusion of clearer abs.
Heres her final look! Can you see the difference?. Check out her full tutorial below!.
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Aquinas, Two Ways of Serving God (Saturday after Sexagesima) - Duration: 4:12.
Saturday after Sexagesima HOW ARE WE TO SERVE GOD?
One: We must serve God both by external acts and by internal acts.
We are possessed of a double nature, we are intellectual beings and sentient beings also.
We should therefore offer to God a double adoration a spiritual adoration, consisting
in the interior devotion of the mind, and a bodily adoration made up of the external
humiliation of the body.
And since in all acts done in acknowledgment that God is God the external act depends on
the internal, for the internal act is the more important, so the external acts of adoration
are done for the sake of the internal adoration.
That is to say, that it is by our gestures of humility that we are moved to subject ourselves
to God in our inclinations and our will.
This is due to our nature being what it is, for it is natural to man to proceed to things
that can only be known through the intelligence from the starting point of things seen, felt,
heard and known by the senses.
So, just as prayer has its origin as something in the mind, and is only in the second place
expressed in words, adoration also consists, primarily and in its origin, in an internal
reverence of God and only secondarily in certain bodily signs that we are humbling ourselves:
such bodily signs, for example, as genuflections to show our weakness by comparison with God,
or prostrations to show that we are nothing of ourselves.
Two: In doing external acts we must use a certain measure of discretion.
The attitude of a religious man towards the acts by which he acknowledges God to be God,
is quite different according as those acts are internal or external.
It is principally in the internal acts, the acts by which he believes, hopes and loves,
that man's good consists and what makes man good in God's sight.
Whence it is written, The kingdom of God is within you.
Man's good and what makes man good in God's sight does not, principally, consist in external acts.
The kingdom of God is not meat and drink, says St. Paul.
Whence the internal acts are as the end, the thing that is to say, which is sought for
its own sake: the external acts, through which the body
is shown as God's creature, are but as means, that is, things directed to and existing for
the sake of the end.
Now when it is a question of seeking the end we do not measure our energy or resource,
but the greater the end the better our endeavour.
When, on the other hand, it is a question of things we only seek because of the end,
we measure our energy according to the relation of the things to the end.
Thus a physician restores health as much as he possibly can.
He does not give as much medicine as he possibly can, but only just so much as he sees to be
necessary for the attainment of health.
In a similar way, man puts no measure to his faith, his hope, and his charity, but the
more he believes, hopes and loves, so much the better man he is.
That is why it is said, Thou shalt love the Lord thy God, with thy whole heart, and with
thy whole soul, and with thy whole strength.
But in the external actions we must use discretion and make charity the measure of our use of them.
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