Powerbank with removeble cells. Or charger with powerbank function.

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ZoomieFan
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Powerbank with removeble cells. Or charger with powerbank function.

I have many 18650 cells but also various uses for those cells.
To keep it sweet and simple I’ll just give two example.

I burn batteries like crazy with my BLF Q8.
But I also do quiet a few intercontinal flights. It’s always a struggle to power my devices during a flight and the hours I spend on the airport. The airport where half the outlets are broken and the other half in use by everyone except me Smile

I already have a fat powerbank but that’s not enough. I could buy another one but I figured a powerbank with replaceble cells would put my cells to good use.
I’ve seen such empty powerbanks. My LiitoKala chargers all have a powerbank function.
So I got that all covered.

I looking for advise/tests on which one is most efficient.
Some powerbanks with non-removeble cells do allow me to get 85+% from the juice that’s in the powerbank. While the crap versions hardly deliver 50%.
The main powerhog during my travels is a small laptop. The powerbank should be able to supply a 2A.

Suggestions please.

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

Lightbringer
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Tomo makes those thingies that take 4 18650s, all independent channels on charging and discharging.

I got a couple (M1 and T1? something like that) and they work fine.

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ZoomieFan
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Yeah, Tomo was what I was refering to. I believe you when you say they work fine. But how fine.
Say you put in one cell of 3500 mAh, how many actually gets delivered to the device you are charging?
3000 mAh? Or far worse like 1500 mAh?

I have no way of testing things but when I use my 4 slot LiitoKala and drain 1.2 amps it get noticeble warm.
Warmth = loss.

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

Lightbringer
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Never measured it, so can’t say.

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ActiveAl
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Here is a BLF review on the Tomo M4 by HKJ, and there are others - just do a search. Maybe you will find your answers therein. From my memory, I don't think the Tomo is very efficient.  Cheers.

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MascaratumB
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Take a look at the Xtar PB2! HKJ has a review of it and there are some more on the forum!
It will be my PB and Charger (for unprotected 18650s) very soon!

REVIEWS : Amutorch S3 /  AM S3 vs Neal 219c  /  Amutorch AM30 / Nitefox UT20 / Sofirn SF14 & SP10A / Sofirn SP32A / Sofirn SP10B / Odepro KL52 / Acebeam H20 / SS AAA / Wuben TO10R / BlitzWolf BW-ET1 / Odepro B018 / DQG Slim Ti / XTAR PB2 Charger / Nitefox ES10K / Nitefox K3 / Amutorch AX1 / Amutorch VG10 / Olight M2R Warrior   

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Cyzan
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I have the Xtar PB2 and love it.

2 DOGS
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I re-read HJK’s review on the Tomo about the parasitic drain and checked mine.

It’s only been a few months and < 3.0v.
I removed the batteries and I’m keeping them separate from now on.
I have other cheap battery chargers that I keep batteries in with no drain.
Kinda defeats the purpose.

ZoomieFan
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ActiveAl wrote:

Here is a BLF review on the Tomo M4 by HKJ, and there are others – just do a search. Maybe you will find your answers therein. From my memory, I don’t think the Tomo is very efficient.  Cheers.

Your memory severed you right. Not suited for my use. The M4 version was tested.
Here on Banggood is a discharge curve of the T4 version; it only delivers 0.5A when 40% is left in the cell.
Far from the 2A I need.

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

ZoomieFan
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2 DOGS wrote:
I re-read HJK’s review on the Tomo about the parasitic drain and checked mine.

It’s only been a few months and < 3.0v.
I removed the batteries and I’m keeping them separate from now on.
I have other cheap battery chargers that I keep batteries in with no drain.
Kinda defeats the purpose.


While that drain is not a big deal for my purpose, it’s usually one of things hinting to low quality.

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

ZoomieFan
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Thanks for recommending the Xtar.
Had a very quick look at the reviews and I already know I prefer Xtar over Tomo

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

Zulumoose
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I have the Xtar PB2 and a Tomo clone (Soshine E3) and the quality and performance of the Xtar is leaps and bounds ahead, it’s time they launched a 4 bay version. I don’t have the measurements to back it up, but the Soshine doesn’t deliver the same output even with 4 full cells, keeps trickle charging indefinitely (doesn’t terminate) also doesn’t seem very efficient, won’t start charging on solar until sun is far more direct. Only issue I have with the Xtar is it terminates a little too early, stops charging my phone around 95%, and can’t be used as a UPS, since it will restart charging itself, but needs a button press to restart the charging of the connected device after a power drop.

Beam me up!

Robowski
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I recently bought the Xtar PB2 and then found out it only fits flat top batteries, and all of my batteries were button top.
I then had a to order some flat tops and wait a few weeks. Just keep that in mind if you’re thinking of getting one.
Otherwise it’s a great little device, and using 2 Samsung 30Q’s, powers up my phone nicely.

ZoomieFan
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That’s no problem because I only own unprotected flattops.
Well, I do have a few raised tops, but those are not 18650’s

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

WalkIntoTheLight
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I recently posted a review and youtube video on the Xtar PB2, if you’re interested:

http://budgetlightforum.com/node/61153

Super-short summary: nice charger/powerbank combo for phones or other power-hungry devices, but only takes flat-top unprotected cells. It will supply 2A.

Lightbringer
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Zulumoose wrote:
I have the Xtar PB2 and a Tomo clone (Soshine E3) and the quality and performance of the Xtar is leaps and bounds ahead, it’s time they launched a 4 bay version.

Now youse tell me…

Wellp, I just use the Tomo as a quick’n‘dirty charger, not as a powerbank, so it’s not too big a deal to me, but it’s nice to know about the XTAR.

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ZoomieFan
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If it suits your needs, by all means just use and enjoy. Erm you are already doing so Smile
But for those whole need lotsa juice and don’t want to carry more cells than needed it’s always nice to find better options.
There is always something better somewhere. Usually at a cost. But the Xtar has a nice price so I go for that!

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

cabfrank
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I might have to try one of these, but a four cell would be ideal.

ActiveAl
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I just purchased a XTAR PB2 LED USB 3.6V/3.7V unprotected Li-ion/IMR/INR/ICR 18650 batteries Portable charger with power Bank function from the Official XTAR Store on AliExpress for $13.88 with free  e-packet shipping. The estimated arrival time is 12 - 20 days. 

 

It is available from BangGood for 12.99 with free shipping. But for less than a dollar difference, I would rather do business with Ali since they provide free tracking and I've have good luck with them. My past purchases from the BangGood China store have taken between 51 and 141 days to arrive. (But purchases from their US store have taken only about a good week.)

XTAR PB2 Product Description

  • The Revolution of Traditional Charger.

    Portable battery charger with power bank function! 

    Used as a power bank:

    • Max 2.1A USB output, fully charge Iphone 7 Plus in 2hrs.

    • Protect our environment with replaceable batteries design, control the quality of the cells yourself and DIY the capacity of your mini power bank up to 7000mAh+.

    • Battery charge & discharge balancing technology makes all of capacity available for use and increase each cell's longevity.

    • Conversion efficiency up to 92%.

    • Hand-held portable charger with magnetic cover design, fast charge your USB devices and all kinds of cell phones anywhere anytime. 

    Used as a battery charger:

    • Max real 2Ax1/1Ax2 charge current, fully charge 1x2500mAh 18650 in 1.5hrs or 2x2500mAh 18650 in 3hrs.

    • Equipped with all XTAR unique features like 0V Activation function revives over-discharged batteries, TC/CC/CV three-stage charging maximizes battery lifespan, multi-protections and so on.

 

 

We need three things in life: something to do, something to look forward to, and someone to love.

ZoomieFan
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cabfrank wrote:
I might have to try one of these, but a four cell would be ideal.

Best is to buy the 2 cell one. Then you have an excuse to buy a 4 cell lateron Smile

Nah, I likely would have have ordered a 4 cell version.
But not 100% sure because I already have a big (8 cell?) PB and a smaller one could serve a purpose too.

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

ZoomieFan
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ActiveAl wrote:

I just purchased a XTAR PB2 LED USB 3.6V/3.7V unprotected Li-ion/IMR/INR/ICR 18650 batteries Portable charger with power Bank function from the Official XTAR Store on AliExpress for $13.88 with free  e-packet shipping. The estimated arrival time is 12 – 20 days. 


 


It is available from BangGood for 12.99 with free shipping. But for less than a dollar difference, I would rather do business with Ali since they provide free tracking and I’ve have good luck with them. My past purchases from the BangGood China store have taken between 51 and 141 days to arrive. (But purchases from their US store take have taken only about a good week.)


XTAR PB2 Product Description

My orders from Banggood usually arrive quickly. ETA of my Xtar which I ordered today is Thursday.
It just depends what you order and from who. AliExpress is just a massive collection of shops. I had very fast delivery from Ali but also slow. My cells took over a month to arrive. But that’s, I think, because as of lately they are banned from air freight.

Another advantage Banggood has is that they just print a random low price on the envelope. Above e20 I have to pay tax + e15 handling fee.
Two times I ordered something over e20 and Banggood just printed $7.35 on the package Smile

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

ActiveAl
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ZoomieFan wrote:
ActiveAl wrote:

I just purchased a XTAR PB2 LED USB 3.6V/3.7V unprotected Li-ion/IMR/INR/ICR 18650 batteries Portable charger with power Bank function from the Official XTAR Store on AliExpress for $13.88 with free  e-packet shipping. The estimated arrival time is 12 - 20 days. 

 

It is available from BangGood for 12.99 with free shipping. But for less than a dollar difference, I would rather do business with Ali since they provide free tracking and I've have good luck with them. My past purchases from the BangGood China store have taken between 51 and 141 days to arrive. (But purchases from their US store take have taken only about a good week.)

XTAR PB2 Product Description

My orders from Banggood usually arrive quickly. ETA of my Xtar which I ordered today is Thursday. It just depends what you order and from who. AliExpress is just a massive collection of shops. I had very fast delivery from Ali but also slow. My cells took over a month to arrive. But that's, I think, because as of lately they are banned from air freight. Another advantage Banggood has is that they just print a random low price on the envelope. Above e20 I have to pay tax + e15 handling fee. Two times I ordered something over e20 and Banggood just printed $7.35 on the package :-)

 

You're getting three day shipping from BangGood? Where do you live?  I just put an XTAR PB2 in my BangGood shopping cart just  to check it out and the standard (free) shipping to my US address from China is 7 to 20 days. To get tracking, I would have to add $1.30. Congrats on the deal you got.

We need three things in life: something to do, something to look forward to, and someone to love.

Enderman
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Nitecore has some powerbank chargers.

You’re aware that pretty much all planes have AC outlets now, right?

wle
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Liitokala engineer 500 has power bank out capability.
It only works with lithium cells in the charger [not nimh].
the charger can take 4 cells, i don;t know if it will be a power bank with less than that.

wle

ValuseekeR
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I’ve used my Liitokala 500 as a powerbank a couple of times. It seems to work well enough, but I can’t comment on the efficiency.
Mine does make an annoying high pitched whine when used as a power bank though. Not a big deal as I bought it as a charger and it doesn’t have any issues there, but still a little disappointing. (Not sure if it’s a common issue or just mine?)

ZoomieFan
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ActiveAl wrote:

ZoomieFan wrote:
ActiveAl wrote:

I just purchased a XTAR PB2 LED USB 3.6V/3.7V unprotected Li-ion/IMR/INR/ICR 18650 batteries Portable charger with power Bank function from the Official XTAR Store on AliExpress for $13.88 with free  e-packet shipping. The estimated arrival time is 12 – 20 days. 


 


It is available from BangGood for 12.99 with free shipping. But for less than a dollar difference, I would rather do business with Ali since they provide free tracking and I’ve have good luck with them. My past purchases from the BangGood China store have taken between 51 and 141 days to arrive. (But purchases from their US store take have taken only about a good week.)


XTAR PB2 Product Description


My orders from Banggood usually arrive quickly. ETA of my Xtar which I ordered today is Thursday. It just depends what you order and from who. AliExpress is just a massive collection of shops. I had very fast delivery from Ali but also slow. My cells took over a month to arrive. But that’s, I think, because as of lately they are banned from air freight. Another advantage Banggood has is that they just print a random low price on the envelope. Above e20 I have to pay tax + e15 handling fee. Two times I ordered something over e20 and Banggood just printed $7.35 on the package Smile

 


You’re getting three day shipping from BangGood? Where do you live?  I just put an XTAR PB2 in my BangGood shopping cart just  to check it out and the standard (free) shipping to my US address from China is 7 to 20 days. To get tracking, I would have to add $1.30. Congrats on the deal you got.

I’m not saying I’m getting 3 day shipping from anywhere. I’m saying it varies which each order. My Banggood order was shipped a few hours ago. Banggood and Ali are a collection of a lot of tiny stores. All of them have their own shipping speed.

EDIT: Just checked the shipping info. While I’m 100% sure it said ETA is Thursday (I remember because that’s also the ETA from a Ali order that’s on it’s way for a whole month) it now says 15 August. A full month….
Likely you think: “ZoomieFan just didn’t zoom in on the matter close enough and just didn’t read well. “ Smile
That’s not the case but I’ve seen some Chinese fine print before. They say stuff like arrives is 3 days and then at another spot they write “after shipping”. That has a 7 day timer. I can file a dispute if not shipped within 7 days on that 3 day order…..

Another mess is, the country of origin. I had a few times that during the ordering process it stated the product was shipped from China. But the stamp showed it was shipped from a warehouse in Europe.

When in get tracking the information usually is:“Tracking info not availble right now (for 2 weeks)”. Or “Parcel is with China post. (for 3 weeks). Or “Can’t be tracked out of China”. And suddenly it’s in my mailbox. So I no longer see the use of tracking info Smile

I’ll just wait and see how long it takes to arrive. When I order from China I just blindly assume it takes a month. No matter what the site states. But once again, I must say my mail often did arrive much sooner than a month.

Pro tip: Just order something every week. Then after the initial start up phase, you’ll receive a package each week. LOL

As for your question were I live: Indiana and Netherlands. In all honestly I must say I never noticed much shipping speed difference between the two locations. But then, I’m not really following all those orders. It’s not uncommon for me to receive something I forgot I ordered Smile

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

ActiveAl
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ZoomieFan wrote:

EDIT: Just checked the shipping info. While I’m 100% sure it said ETA is Thursday (I remember because that’s also the ETA from a Ali order that’s on it’s way for a whole month) it now says 15 August. A full month…

Pro tip: Just order something every week. Then after the initial start up phase, you’ll receive a package each week. LOL

As for your question were I live: Indiana and Netherlands. In all honestly I must say I never noticed much shipping speed difference between the two locations. But then, I’m not really following all those orders. It’s not uncommon for me to receive something I forgot I ordered 

Is that one month BangGood shipping estimate to Indiana or Netherlands? Thanks for the Pro Tip. And I though I was the only one that had a bad memory! 

 

 

 

 

We need three things in life: something to do, something to look forward to, and someone to love.

ZoomieFan
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Netherlands

To Netherlands
Cables June 6 – July 7
Cables June 6 – July 9
Plugs Feb 6 – Mar 7
Convoy BD06 Jan 20 – Feb 20
BLF Q8 Jan 16 – Jan 26
Fitorch MR35 Jan 16 – Jan 26

Often 30 days. But also 10days as you see. I always, without exception pick the cheapest shipping.

That’s all I have. The arrival dates are of the packages I marked as received on their site. Often I don’t do that so they just close it after 60 days or so.

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

matg
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You cant go wrong with the xtar pb2 as mentioned above. Mine works great for charging my phone at 2 amps.

ZoomieFan
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My Xtar PB2 arrived 2 days ago, and I must say it’s well worth it’s money.
It looks and feels nice, even if it’s just plastic
The percentage left display seems to be quite accurate.

One of my main uses for the Xtar is to keep my small laptop powered during travel. I drained my laptop down to 25% and hooked up the Xtar.
It not only kept up with the laptop, it actually charged it.
I must say my laptop is just a 10” Atom thing. This is no computer forum so’ll not bother you with more details Smile

Anyway I measusred the current output from 100% all the way down to zero. Good to see it was a constant 1.35A.
Well to be perefctly honest, it fluctuated a bit. It even was a bit higher when the laptop was fuller and the Xtar was more empty.
But I think that was just because the charing circuit of the laptop asked more power for whatever reason.

While 1.35A by no way is a massive draw, it suprised me positively to see the Xtar was able to deliver until the cells (2× 3500 mAh Liitokala) were drained to the last drop.

The only thing that keeps me from giving the Xtar a perfect score is that it’s a very slow charger at 0.5A total for 2 cells.

PS1: My current measurements are done with a $10 USB meter, so not very accurate I guess.
PS2: XTAR is on discount at Banggood.
PS3: @activeAl, shipping took 12 days

Chargers: 1xBasen BD01 5/5,1xDodge Charger, LiitoKala: 3x100 4/5, 2x202 5/5, 1x402 3/5., MiBoxer C4-12 3/5
Flashlights: BLF Q8 4/5, Convoy BD04 5/5, DQG Tiny III, FiTorch MR35 3/5, Haikelite SC26 HD, Zebralight H600Fc 3/5.
Powerbanks: EasyAcc 26800 mAh 3/5, Xtar PB2 4/5
Waiting for: 21700 EDCs to hit the market.

Kindle
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Last seen: 32 min 13 sec ago
Joined: 04/22/2011 - 10:24
Posts: 467
Location: USA

The PB2 hit the market not long before your search. Sometimes things just line up perfectly.

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