Sunday, April 5, 2015

Bestek 8A 5-port USB charger Review

Disclosure of Material Connection: I received this product for free so that I could provide product feedback to the company and post a product review. I was not required to write a positive review and I do not rate products higher than they should have been. I am disclosing this in accordance with the Federal Trade Commission's requirements.

I recently received a Bestek 8A 5-port USB charger for a product review.  The charger itself was fairly small, and the package included the A/C cord to plug it into a wall socket.

Charger and power cord
The charger is rated at 8A, unfortunately I wasn't able to fully max it out with the items I had available but here is what I did test:

- Nexus 7 tablet pulling 1.17A
- Moto X pulling 1A
- Two 2A loads

Total current tested 6.17A, which is under the 8A rate maximum but still pretty good.  Unless you are a power user with many tablets, you may never hit the 8A rated maximum.

5 USB ports

Size Comparison : 5 port charger next to two different 2-port chargers

For real world tests, I will be using this on my night stand to charge a smartphone, tablet and smartwatch on a nightly basis.  So far I have not run into any issues.

Here are the main points I noticed about this product:

Design: Considering this is basically replacing a bunch of single port chargers, it only takes up a bit more space than two chargers would take.  The power cord lets you place the charger itself where you want, instead of having to plug it directly into the wall like another unit I recently tested.

Multiple-ports: If you are in a situation where you only have one available wall plug, being able to get 5 USB ports is a great thing.  In many hotels, you only have 1 plug available near you since the other one is typically used by an alarm clock or lamp.

Capacity: Although I only just over 6A of the total rated 8A, this charger should be able to handle multiple devices without a problem.  You don't have to worry about certain ports being rated certain amount, each port can handle a max of 2.4A ( 8A total for the device ).  I have tested other chargers that have ports labeled for just 1A, and others for higher amounts.

Bottom line: If you are looking for a multiple port charger, this is a great option to consider.

Amazon Product Page: http://amzn.com/B00UMYHO2Q

Friday, April 3, 2015

Bestek 5000 mAh 2-port USB charger Review

Disclosure of Material Connection: I received this product for free so that I could provide product feedback to the company and post a product review. I was not required to write a positive review and I do not rate products higher than they should have been. I am disclosing this in accordance with the Federal Trade Commission's requirements.

I recently received a Bestek 5000 mAh 2-port USB charger for a product review. The charger just comes with an instruction manual, but no carrying case or cables which isn't really an issue.

Bestek charger ( middle ) with regular 2 port USB chargers on each side for size comparison
As far as design goes, the wall plug can flip in/out so it is more compact for travel and you don't have to worry about the plug getting bent when it is packed up.  The unit itself is larger than the average 2 port charge, but that is expected since it is also a battery pack.

Two standard USB ports.  The unit has no power button, you shake it to turn it on
If you have the unit plugged into a wall, it is rated to handle a total of 3.4A ( max of 2.4A on a single port ) but based on reading the instructions if you use the full 3.4A the internal battery will not charge.  If you are using the unit as a battery pack (not plugged in) it can handle a max load of 2.1A.

I used my DROK USB testers and adjustable 1A/2A loads to do some tests to see if the product can handle the rated capacity.  Here are the results of my quick tests:

While plugged in:

- I was able to get over 2.4A out of a single port
- I was able to get over 3.4A out of two ports together
- 4A of load seemed to make it reset ( probably triggering the built-in protections )

While unplugged (acting as a battery):

- I was able to get 2A from a single port
- I was able to get 2A across two ports
- Trying to pull 3A across two ports made the unit shutoff

Overall, the unit seemed to handle within (or above) rated specs and would seem to protect itself if the load was too much.

For real world tests, I have been using it both as an A/C adapter and as a battery pack without any problems.

Here are the main points I noticed about this product:

Compact: Although this is larger than the average 2-port USB charger, it is still fairly compact considering it also has a 5000 mAh capacity.  For the traveling power user, being able to carry one devices to support multiple functions is always beneficial.

Ease of Use: Nothing complicated here, you just plug it in and use it.

Capacity: The output of 3.4A as an A/C adapter and 2.4A should be able to handle multiple devices, but of course two power hungry devices may give you some trouble.

Bottom line: If you are looking for a good capacity battery pack that is compact and great for travel, this is a great option to consider.  Basically you are combining a 2 port USB charger and 5000 mAh battery pack into a single unit.  Less things to haul means less clutter and less chance of forgetting an important piece of your setup.

Amazon Product Page: http://amzn.com/B00UVCA5YS

Friday, March 20, 2015

Sugru Review

Disclosure of Material Connection: I received this product for free so that I could provide product feedback to the company and post a product review. I was not required to write a positive review and I do not rate products higher than they should have been. I am disclosing this in accordance with the Federal Trade Commission's requirements.

I recently received some Sugru samples for a product review.  If you don't know what Sugru is there website sums it up pretty simply:

"Sugru is the world’s first mouldable glue that turns into rubber." http://sugru.com/about

I actually like the YouTube video they pulled together ( https://www.youtube.com/watch?v=8fOSo_EN-y4 ) it is very informative and pretty funny.

So hopefully at this point you either already knew what Sugru is, or you went ahead and looked at the links above and now have a pretty good idea.

Personally, I didn't really run across Sugru until one of my blog readers pointed out that I should use Sugru for mounting some of the devices in the project where I was setting up a Nexus 7 in my car.  I was sent two packs of Sugru.

Two 8-Packs of Sugru

When you open it, it has a few sample ideas

And most importantly the directions and other useful information

This is the "New" colors pack

This is the "Classic" colors pack

So much Sugru!

Of course came the big problem - what do I test it on?

Project 1 - Kid's Chair

I had a small plastic chair that had a leg come loose (the inside part that would hold it in place broke) so I figured that would be a good test run.

Pretty good color match

After smoothing it out, it looked good.
 I let it cure for 24 hours and then basically did some test by grabbing the leg and sort of moving it around.  At first it felt like it was pretty solid but after testing some more (honestly maybe a bit roughly) it ended up coming loose.  This is wear I learned the first lesson that is apparently already a known - Sugru seems magical but at the end of the day it has limitations and certain types of plastic seems to be one of them.



On the plus side, I got a chance to feel the material once it hardened.

Project 2 - Baby Gate

We have a baby gate setup in an odd spot, sort of leaning against the wall and either as we walk around or when the baby shakes it, it ends up banging against the wall.  This seemed like a perfect project for Sugru.

This is where the gate bangs against the wall (you can see the marks)

I made a block / bumper of Sugru and let it cure

Now if the gate is moved, the Sugru bumps the wall instead
which is less noisy and should cause less or no damage to the wall
Overall I think the baby gate project was a success.  I wish I would have made a pattern / mesh on the part of the material that would hit the wall since that might have improved the ability to absorb the shock.

Project 3 - Kitchen Chair

The back piece of one of our kitchen chairs broke, the chair itself was still usable but if you grabbed it by the back to move it the piece would come off.  If this is a bit confusing, don't worry the pics should clear things up.  I figured this would be a good test for Sugru.  I used the "Woody Brown" color, and c-lamp to hold things together.

Top of the chair.  The left part is where the wood broke.
This is the piece that goes on top of the chair.
Close up of the broken area.
Close up of the broken area with the pieces pulled apart so you can see the damage better.

As you can see in the pics, one side broke and it seems like the other spots just came out after that -- I really don't know how it broke, we blame the kid.  Below, is how I applied the Sugru and clamped it to cure.  I should have used some rope/straps to keep things in place better, I had to fight it a bit because the piece would slide when I used the clamp to apply pressure.

Left side of the chair (just needed a little Sugru to keep it in place)
Back view of the chair - clamp holding things together
Front view of the chair
Another picture of the clamp

After waiting the 24 hours for things to cure, I removed the clamp.  The chair seemed to hold together, but I only grabbed the back to move it - I didn't apply too much force because during normal use it shouldn't have that much force on it anyways.

Clamp removed.  It may not be pretty but it held together so far.
Front of the chair, much less noticeable.
Overall the Sugru worked for this fix.  The color is close enough that you know it is there, but it isn't an eye sore.  My wife said she might use a marker or something to try to make it match the chair closer, but bottom line the Sugru did a good job for a quick fix.  A little better planning, and I probably could have minimize how much Sugru was actually visible.

Additional Project Ideas
  • I have been working on setting up some electronics in my car ( see my blog post here ) and Sugru might help give me some interesting mounting options - in fact one of the blog comments mentioning Sugru is what made me look into the product.
  • I am still in the process of coming up with ideas, and will update this blog with a few more ideas as I come up with them and hopefully a few projects ( regardless if they work or not ) to help give others an idea of what they can do with Sugru.

Bottom line: Sugru is as awesome as it seems.  If you follow the directions, and understand how it works -- like any tool it becomes very useful.  Their website has great information, ideas and from what I can tell the support is pretty helpful.

Sugru Product Page: www.sugru.com

Thursday, March 19, 2015

TaoTronics Smartphone Selfie Stick ( Model TT-SH10 )

Disclosure of Material Connection: I received this product for free so that I could provide product feedback to the company and post a product review. I was not required to write a positive review and I do not rate products higher than they should have been. I am disclosing this in accordance with the Federal Trade Commission's requirements.

I recently received a TaoTronics smartphone selfie stick ( model TT-SH10 ) for a product review.  I was actually surprised how small the stick was when fully closed.  In addition to the stick itself, it included a USB to microUSB cable for charging.

I tested the selfie stick out with my Moto X, after pairing the Bluetooth with the phone and opening the camera application I was able to take pics using the button with no problem.  Honestly I don't run around taking selfies, but I could see how this could be useful.  I also tested it with a Samsung Galaxy S5 and again it worked with no problem.  The manual does mention an Android app you can download if needed, but I didn't have to for either device.

Size comparison with a 16.9oz bottle of water

Size comparison (diameter of stick) with a dime
I don't know if this was intended to be funny or not, but the manual has a caution section and it says "Don't fight with the stick, it will break" - I got a good laugh from that.

So what else can you do with a selfie stick?  By the way I will say that some of these may not make sense, but yes I did them all (except the one I wasn't allowed to do per the instructions):
  • Take pictures of hard to reach places
  • Use it to take videos of yourself talking ( video blogs, demonstrations etc )
  • Fight with it .. ahhh no that is not allowed!
  • Show videos to others without actually handing them the phone
  • Take a picture of the entire dinner table, not just your plate
  • Check out your bald spot
  • If you have a dog that won't let you get close without trying to give you kisses, you can take close up photos using the selfie stick
  • Get the attention of small children who will feel the need to grab the phone because obviously if you put it near them, it is for them to play with
Here are the main points I noticed about this product:

Ease of Use: It was pretty easy to mount the phone and pair with Bluetooth, after that it just worked as you would expect - hit the button and take a picture.

Versatile: Although the primary design is for people taking selfies, I am sure people with creative minds can come up with all sorts of ways to make something like this useful - as you can see from my own list, I had no problem finding other ideas.

Compact: When folded down, it can actually fit in your pocket without any real problem.

Bottom line: If you are the type of person that loves to take pictures, especially selfies, then this is pretty much a great option for you.  I wouldn't imagine myself as the type of person to take selfies, but when out with the family it is nice to get a group shot without having to ask a stranger or worse have one person not in the photo.

Amazon Product Page: http://amzn.com/B00TI2HCS4

Friday, March 6, 2015

Bluetooth Speaker Teardown

Recently the charging plug on one of my Bluetooth speakers broke and I decided to take the speaker apart.  I initially just wanted to take it apart to see what was there, and show my son the electronics inside however I decided I would also post the info on my blog just in case anyone was interested.

The speaker was an Aduro S2 (Sound Squared) speaker.  Unfortunately I didn't take any step by step photos, but here are the photos I did take.

After unscrewing a bunch of things (and breaking a few pieces of plastic) these are all the parts I had.
Speakers
Battery (Left) and circuit board (Right)
Close up of the circuit board
The microUSB connector that broke off the circuit board.
Bottom of the circuit board, pretty sure the smaller circuit is the Bluetooth receiver
These parts were at the hinge parts of the assembly.
Pretty sure they just gave resistance when you adjusted the speaker
The battery - based on some research online it seems to be a Lithium polymer battery.
The case seems to be a metal foil and not a hard material but I didn't go poking it or anything.
I was thinking about trying to solder some wires to supply the power that would have come through the mircroUSB port, but I don't know where my soldering pen is and I don't know if I even want to take the time to do it.  Even if I don't fix it, I think it was interesting to take it apart and see what was inside the speaker.