Valueline USB AC charger VLMP11955B



Official specifications:

• Input Power: AC 100-240V 50/60Hz
  
• Output Power: DC 5V-2.1A
  

• Power consumption when idle is 0.1 watt
  
• Usb output is coded as Apple 2.1A
  
• Weight: 49.6g
  
• Size: 71.5 × 39.0 × 39.0mm
  

Ok, this is a quick review of the RD tech USB 3.0 USB tester

This was sent to me for review by RD tech.

So basically this is a multimeter for your USB port. Pretty simple and basic. It allows you to see the voltage and current passing through the USB port at any given time. Good for diagnosing charging issues or seeing if your chargers are telling the truth.

It also includes a charge “counter” that keeps track of how much total power has been consumed. This will not be precise due to losses in the charger but it is a nice feature.

No real complaints while using it besides the sreen times out after about 10 seconds and you have to wake it back up.

The graph modes are nice for seeing what it does over time. For example you can see when the constant current charge ends and the constant voltage begins.

It seems to be pretty accurate, although I don’t really have anything to compare it to, it matched my multimeter pretty well.

Now for some pictures:

Daiso USB 200 Charger no 2



Official specifications:

• Input Power: AC 100-240V 50/60Hz
  
• Output Power: DC 5V-1.0A
  
• Size W26.5mm x L26.5mm x H28mm
  

• Power consumption when idle is 0.07 watt
  
• USB output is coded as Apple 1A
  
• Weight: 20.0g
  
• Size: 44.6 × 26.3 × 26.7mm
  

inCharge 2USB Wall Power Outlet



Official specifications:

• No. of outputs: 2
  
• Output: 5 VDC 2.1A 10.5W
  
• Maximum voltage: AC 250VAC 50Hz 16A
  
• Connection wire: Single core, max 2.5mm2
  

• Power consumption when idle is 0.15 watt
  
• USB output is auto coding with Apple 2.1A as maximum.
  
• The two output ports are in parallel.
  
• Earth is not connected to usb shield
  
• Need 48mm deep hole.
  
• Extend 11mm out.
  

UGreen Dual USB Power Adapter CD104



Official specifications:

• Model no: CD104
  
• Product name: Dual USB charger
  
• Input: 100-240VAC 50/60Hz, max 600mA
  
• Output: 5V/2.4A + 5V/1A
  
• Material: ABS+ PC fireproof
  

• Power consumption when idle is 0.08 watt
  
• USB output top is auto coding with Apple 1A.
  
• USB output bottom is auto coding with Apple 2.4A as max.
  
• The two outputs are in parallel.
  

USB meter: RD Tech USB 3.0 tester USB-3.0-H



Official specifications:

• Voltage measurement range: DC 04.00-24.00V
  
• Current measurement range: DC 0.0000-3.0000A
  
• Capacity accumulation range: 0.0000-9.9999-99.999Ah
  
• Energy accumulation range: 0.0000-9.9999Wh-999.99Wh
  
• Voltage measurement accuracy: ± (0.2% + 1digit)
  
• Current measurement accuracy: ± (0.1% + 4 digits)
  
• Time measurement range: 0-99h59min59s
  
• Temperature measurement range: -10??65?
  
• Temperature measurement error:±2?
  
• Screen brightness setting: 1-7 level
  
• Delay closing screen time: 1-9 mins
  
• Voltage curve range: 04.0-24.0V
  
• Current curve range:0.00-3.00A
  
• Update rate: 2Hz
  
• Protection function: OVP (over-voltage protection), UVP (under-voltage protection), OTP (over-temperature protection), OCP (Over-
• current protection) and UCP (Under-current delay time protection).
  
• Charging mode: Direct Mode, Quick Charge Mode, Disconnected Mode.
  
• Other functions: Screen rotation Shunt-down screen
  
• Quiescent current: about 10mA
  
• Product weight: 14g (package 46g)
  
• Product size: 64.0mm*21.6mm*11.2mm (L*W*H)
  
• Port mode: compatibility USB 2.0 USB 3.0
  
• Display screen: 0.91” 128*32 lattice OLED screen
  

• Own current consumption is 13mA with display on and 6mA with display off.
  
• Internal resistance is about 0.11ohm including connection resistance.
  
• Remembers Wh and Ah when power is off
  
• Voltage display is within 0.03 volt in the 4.0 to 20.0 volt range.
  
• Current display is within 0.03 ampere in the 0 to 3.0 ampere range.
  
• USB data works fine.
  

Tomo Power bank M2



Official specifications:

• Input: 5.0V/ 1A
  
• Output: Dual USB: 5V/ 1A; 5V/ 2A
  
• 2-in-1: 18650 Battery Charger + Smart Power Bank
  
• Compatible Battery: 2 × 18650 battery (Not included)
  
• Weight: 68g
  
• Size: 130mm x 49mm x 25mm
  

• Micro usb: Charge input.
  
• 1A and 2A usb output.
  
• Power on button.
  

• Usb output 1A is coded as usb charger (DCP)
  
• Usb output 2A is coded as Apple 2.1A
  
• Power consumption from battery when off is 2.2mA
  
• Power consumption from battery when on is 16mA
  
• Power consumption from battery at 1.9V is 0.7mA
  
• Limit for detecting current draw or not is about 45mA load on 2A usb and 60mA on 1A usb output.
  
• The two battery slots are independent, i.e. no problem mixing full and empty batteries.
  
• It is possible to use both outputs simultaneous, but the total current is only 2A, this is enforced.
  
• Can be used as UPS
  
• Size: 100 × 48.0 × 26.4mm
  
• Weight: 52g (Accessories and batteries not included)
  

• Long battery slot, i.e. can handle some protected batteries.
  
• Can be used as UPS
  
• Independent slots
  
• The display with current on each port
  
• Fairly low noise
  
• Over load protection
  
• Easy battery replacement, i.e. this makes it possible carry spare batteries or use it as 18650 charger.
  

TENOZEK USB Power Bank 4000mAh



Official specifications:

• Material: Alloy
  
• Output: Dual Output Connections
  
• Output: 5V 2.1A
  
• Type: Emergency/Portable
  
• Battery Type: Polymer Battery
  
• Color: Silver
  
• Dimensions: (4.72 × 2.36 × 0.39)” / (12 × 6 × 1)cm (L x W x H)
  
• Weight: 4.41oz / 125g
  
• Input: DC 5V 1A
  
• Battery Capacity(mAh): 4000
  

• Both Usb output is coded as usb charger (DCP)
  
• Both outputs are in parallel.
  
• Output is always on, except when charging.
  
• Size: 115 × 59.4 × 10.5mm
  
• Weight: 122g (Accessories not included)
  

Konig Mini USB charger PSUP-GSM02



Official specifications:

• Voltage Required: AC 100-240 V
  
• Input Connector(s): Power
  
• Voltage Provided: 5 V
  
• Output Connector(s): Mini-USB Type B
  
• Power Provided: 5 Watt 2000mA is 10W
  
• Max Electric Current: 2000 mA
  

• Power consumption when idle is 0.17 watt
  
• Usb output is mini usb connector.
  
• Usb output coded as usb charger (DCP).
  
• Weight: 77g including cable.
  
• Size: 82 × 72 × 29mm (Wire not include, but strain relief is).
  

TENOZEK Dual USB Power Bank 13000mAh



Official specifications:

• Material: PC & ABS
  
• Color: White
  
• Output Interface: Dual USB
  
• Output: 1:5V 1A, 2:5V 2A
  
• Battery Type: Lithium Battery
  
• Dimensions: (5.51 × 2.56 × 0.98)” / (14 × 6.5 × 2.5)cm (L x W x H)
  
• Weight: 9.88oz / 280g
  
• Input: DC 5V 1A/2A
  
• Type: Emergency/Portable
  
• Battery Capacity(mAh): 13000
  

• Both Usb output is coded as usb charger (DCP)
  
• Both outputs are in parallel.
  
• Output is always on, except when charging.
  
• The gauge turns on when output is loaded.
  
• Size: 140 × 63.6 × 22.5mm
  
• Weight: 280g (Accessories not included)
  

Tomo Power bank M4



Official specifications:

• Input: 5V / 1.2A
  
• Output: 5V / 1A, 2A
  
• 2-in-1: 18650 Battery Charger + Smart Power Bank
  
• Compatible Battery: 4 × 18650 battery (Not included)
  
• Weight: 86g
  
• Size: 10.00 × 8.40 × 2.70 cm / 3.94 × 3.31 × 1.06 inches
  

• Micro usb: Charge input.
  
• 1A and 2A usb output.
  
• Power on button.
  

• Usb output 1A is coded as usb charger (DCP)
  
• Usb output 2A is coded as Apple 2.1A
  
• Power consumption from battery when off is 3.5mA
  
• Power consumption from battery when on is 21mA
  
• Power consumption from battery at 1.9V is 1.5mA
  
• Limit for detecting current draw or not is about 65mA load on 2A usb and 65mA on 1A usb output.
  
• The four battery slots are independent, i.e. no problem mixing full and empty batteries.
  
• It is possible to use both outputs simultaneous, but the total current is only 2A, this is enforced.
  
• Can be used as UPS
  
• Size: 100 × 83.6 × 26.4mm
  
• Weight: 87.7g (Accessories and batteries not included)
  

• Long battery slot, i.e. can handle some protected batteries.
  
• Can be used as UPS
  
• Independent slots
  
• The display with current for each port
  
• Overload protection
  
• Easy battery replacement, this makes it possible carry spare batteries or use it as 18650 charger.
  

Valueline Micro USB AC charger VLMP60891B10



Official specifications:

• Input Power: AC 100-240V 50/60Hz
  
• Output Power: DC 5V-2.1A
  
• Connector: Micro usb
  

• Power consumption when idle is 0.1 watt
  
• Usb output is coded as Samsung
  
• Weight: 64.6g
  
• Size: 71.7 × 48.0 × 39.0mm
  

USB battery box mi Power bank 10000mAh PLM02ZM



The power bank can use quick charge both for input and output, the energy storage is based on a Lithium Polymer pack.
The specifications are:

• Brand: Xiaomi
  
• Model: PLM02ZM
  
• Material: Aluminium Alloy
  
• Capacity: 10000mAh 3.85V ( 38.5Wh )
  
• Product weight: 0.250 kg
  
• Dimensions: 130 * 71 * 14.1mm
  
• Battery Type: Lithium polymer batteries
  
• Input: 5.0V2.0A, 9V/12V18W
  
• Output: 5.1V2.4A 9V/12V15W MAX
  
• Unique Tech: Quick Charge 2.0
  

• 4 led strip for power gauge
  
• A button to activate the power gauge and turn the output on (Usual it will turn on automatic when loaded).
  
• Micro usb: Charge input.
  
• Usb output.
  

• Usb output is auto coding with Apple 2.1 and QC
  
• Usb output will usual turn on automatic when loaded.
  
• Output will turn off about 100 seconds after the load goes below 60mA
  
• Output will turn off when input power is connected
  
• Charge indicator will flash when output is on.
  
• Size: 130 × 71 × 13.9mm
  
• Weight: 215g (Accessories not included)
  

Rasberry Pi 2.5A (Stontronics DSA-13PFC-05)



Official specifications:

• USB POWER SUPPLY, 5V 2.5A
  
• Input Voltage VAC: 90-264V
  
• Plug Type: UK / Euro
  
• Micro USB cable 1.5mtr
  
• ErP Level 5 Efficiency Rating
  

• Power consumption when idle is 0.03 watt
  
• usb power is not coded?
  
• Weight: 118g including EU plug.
  
• Size: 78 × 73 × 45mm
  
• Cable is 145cm long with micro usb connector
  

Chuwi Hi-Dock 4 usb desktop charger W-100



Official specifications:

• Dimensions 81*81*28mm/3.19*3.19*1.1in
  
• Weight 147g
  
• Input AC 100-240V 50/60Hz 0.85A(MAX)
  
• Output 1: QC3.0 3.6-6.5V/3A,6.5V-9V/2A,9V-12V/1.5A
  
• Output 2: USB*3 5V/2.4A,(5V/3.4A MAX)
  
• Total output power: 35W
  
• Working temperature: -10° ~ 40°C
  

• Power consumption when idle is 0.08 watt
  
• Usb output is auto coding with Apple 2.4A as maximum.
  
• Orange usb output is Quick Charge 3.0 and can also support Apple 2.4A
  
• The 3 standard usb ports are in parallel.
  
• QC shared ground/0V with the other ports.
  
• Minimum QC3 output is 3.68V
  
• Weight: 147g (without accessories)
  
• Size: 80.1 × 80.0 × 29.2mm
  

Xiaomi Mi 2 Power Bank 20,000mAh Quick Charge 3.0 Portable Charger

Unit supplied by banggood for review and testing, product link (aff?): https://www.banggood.com/Original-Xiaomi-20000mAh-Polymer-Power-Bank-2-D...

This is the new version of the 20,000mAh Xiaomi Powerbank, and even though it shares a lot of similarities on the outside with the old one, it’s been completely revamped on the inside. I have already reviewed their new 10,000mAh model and was surprised by the performance, so much that I would say with confidence it is the best powerbank in its class and price range. Will the bigger brother live up to its hype? Let’s see…

Specs from Xiaomi:
Battery Capacity: 20000mAh 3.85V ( 77Wh )
Battery Core: Polymer
Interface: Micro USB(input), USB(output)
Input: DC 5V/2A, 9V/2A, 12V/1.5A
Output: 2* DC 5.1V/2.4A, 9V/2A 12V/1.5A (18W Max)
Size: 135.5 × 67.6 × 23.9 mm
Weight: ~400g

One of the reasons I love Xiaomi power banks is because they state all the numbers in the spec, including the energy rating which is useful to measure efficiency. This version uses a 3.85V battery which gives it a slight advantage in energy as compared to 3.6V and 3.7V chemistry. Higher nominal voltage and an extremely efficient conversion module gives the Xiaomi 2 the almost unbelievable results in the discharge tests (See below).

Unboxing:
Typical Xiaomi powerbank box that comes with a short USB cable and a brief instruction manual in Chinese (not pictured)

Some info in the back of the box

Build quality and interface:

The Xiaomi Power Bank 2 has great built quality just the like original, even though the casing is fully made of plastic it feels really solid on hand.

Close up of the finish and logo. It has a smooth polished finish with small dots over front and back sides. White plastic gets dirty quick!

Vs. the older version, about 1CM shorter and narrower. A tad thicker but hardly noticeable. Weight comes in at 326gr (new) and 339gr (old).

Vs. another typically sized, 6× 18650 powerbank.

Xiaomi powerbank family

Obligatory size comparison with a S2+

Close-up of the top: button, 4 LEDs to show capacity, micro USB for input and 2x USB out. The matte finish can be easily scratched, but not very noticeable because it is white.

Lots of technical info underneath

In action

Compared to the older model, key differences are:
-No longer uses 6× 3.7V 3,350mAh 18650 batteries, now it has 2× 10,000Mah 3.85V Lithium Polymer cell.
-Quick Charge 3.0 supported for both input and output. (only input for old version)
-Faster recharging, thanks to the reduced CV phase of the new battery.
-Variable output voltage added
-Smaller size, rounder edges
-Low current mode added

Operation and performance:
-It has auto start when a device is connected
-Will automatically turn off after 30 seconds if a load is not detected
-One single button operates the power bank, it will turn on the output or restart it when pressed.
-Double click activates a low current mode, designed to charge/power low power devices such as bluetooth headset, USB lamp, keychain flashlights, etc. These devices draws very small amount of current and in normal mode would not keep the power on.
-Pass-through charge is possible but QC is disabled for both input and output.

Variable output voltage: Just like the 10,000mAh powerbank 2, this one has a variable output voltage. When the connected load is above exactly 1.5A the voltage gets bumped from 5.0V to 5.2V. This is extremely useful to compensate for cable losses and helps to maintain a healthy charge current. I would have preferred a permanent 5.3V output voltage like some modern smartphone chargers, since there is really no reason for manufacturers to stick to exactly 5.0V anymore. A 5.0V output reaches the device at 4.5~4.8V after cable losses and most -if not all modern 5V devices can safely receive up to 5.5V,

The included USB cable is the same that comes with all xiaomi products, a flat type cable that measured 0.09 Ohm resistance at 5V 2A. This is good compared to my other short cables.

Charge test:
-Maximum input using a QC3.0 adapter was 12V/1.5A
-From empty to full it only took 6hr 11min, impressively fast.
-103Wh required to fully charge with an efficiency of 75%
-After being fully charged it draws ~40mA while idle

Discharge tests:

5V/1A: output was completely flat, and it achieved the highest efficiency I’ve ever seen in a powerbank at 98%.

5V/2A: nice and flat output like in 1A test, slightly lower energy.

9V/1.5A: output remained above 9V the whole discharge test.

12V/1.5A: output voltage was sustained above 12V the whole discharge test.

The complete chart, even at 18W output the efficiency remains above 85%. Why don’t we have a flashlight driver like that?

Notes:
-I got 975mAh more output capacity than the spec, and unbelievably high efficiency at 98% (Spec’d 93% ). I wonder if that’s due to capacity being underrated? Either way, it’s a good thing. Same happened with the 10,000mAh version. Lets hope that Xiaomi don’t ever realize this and go cheap on their products.
-Compared to the older Xiaomi 20,000mAh (pictured above), I’m getting roughly 15Wh more at 5V/2A which is a dramatic 25% increase. This is enough to give an extra full charge to a smartphone with a ~3000mAh battery.
-The internal battery is a High density lithium polymer with a nominal voltage of 3.85V, so compared to a common 3.7V 18650 based power bank of the same capacity there is a considerable energy increase. Keep this in mind when shopping power banks.

Compared to other 20,000mAh powerbanks: All tests done at standard 5V 2A discharge rate and charged with a QC 3.0 capable adapter
-Xiaomi 2: 74.4Wh, 6hr 11min to recharge
-Xiaomi 1: 59.3Wh, 6hr 45min to recharge
-Ravpower “porsche design” (pictured): 63Wh
-Vinsic: 62.4Wh, 5hr 10min to recharge (short recharge time thanks to highly efficient input converter)

Final words…
The new king of 20,000mAh? ABSOLUTELY. Most users don’t realize how much better this Mi 2 powerbank performs compared to others, but just look at the numbers! If you liked the 10Ah powerbank 2, you’ll love this one. As always, I put my power banks under heavy use for some time before reviewing and everything was flawless.

What I like:
-Compact size and great build quality.
-Extremely high efficiency, out-performs most higher capacity and more expensive power banks.
-Strong output charges the most power hungry devices. Recharges very quickly as well.
-Has low current output mode and variable output voltage, which are not offered in most power banks.
-Budget price! At the current price of $30.99, it easily beats other brand name products such as Anker, Ravpower, Aukey.

What I don’t like:
-Plastic construction is solid, but for some people it might look cheap compared to other products of the xiaomi line-up. I’m totally in for an aluminum case version.

Thanks for reading and I hope this review has been useful to you.

Ravpower RP-PB33



This is a simple and fairly small power bank.

The specifications are:

• Input: DC 5V/1A
  
• Output: DC 5V/1A max
  
• Capacity: 3350mAh 12.4Wh
  

• Usb output is coded as Apple 1A
  
• Output will turn off about 30 seconds after the load goes below 60mA
  
• Power bank cannot be used as UPS, when charging voltage is removed output will turn off.
  
• Switch must be pressed to turn output on.
  
• Size: 102 × 23mm
  
• Weight: 72g (Accessories not included)
  

Review for the Thrunite C2, portable 18650 charger/powerbank device. Please note that current units being sold are the newest version (v3?) and my review unit is the v2. The main improvement is the ability to power up devices that draws as low as 100mA.

Unit sent by Thrunite for review and testing, product link: http://www.thrunite.com/thrunite-c2-3400-mah-compact-portable-charger/

The Thrunite C2 is designed to be a portable and fastest solution for 18650 charging + USB power delivery on the market. There is currently no other product this size that allows the user to charge a removable 3.7v 18650 battery at 2A rate, leave alone being able to supply USB power as well. I was a little skeptic at first when I saw the specs but the I’m glad to inform the C2 performs as expected and comes in very handy for a flashaholic.

Specs from Thrunite
-Input: DC 5V, Max 2.4A
-Output: DC 5V, Max 3A
-Material: AL T6061 aircraft aluminum body
-Applicable Battery: ThruNite 3400mAh 18650 rechargeable Li-ion battery
-Working Temperature: -20℃-40℃.
-Size: 92.8mm(Length)*25mm(Width)

Unboxing:
A simple thrunite style cardboard box that contains little information on the outside

Inside the box we find the C2, protected 3,400mAh 18650 cell, a mesh pouch, short USB cable and user manual.

Build quality and interface:
The C2 is built from aluminium with a silver anodizing finish, the body has ~2mm thickness and overall build quality is high and on par with their flashlights. Weight comes in at 36.3gr w/o battery and 86.8 w/battery.

Single button on the top controls the device, a microUSB input and USB output.

Once we unscrew the tailcap we can access the battery. There is a gold coated spring and threads are square cut, ironically better threads than many expensive flashlights.

Close-up of the front PCB, also with a gold plated spring.

Size compared:

Inside the mesh pouch

Operation and performance:
-A single click of the button turns on the USB power
-The C2 does not have automatic turn on when a load is connected
-When no load is detected it turns off after 3secs
-Minimal load to maintain power is about 100mA on the current version.
-An LED on the front side shows battery status,
When charging: blue for 4.2V, Flashing blue for 3.65-4.2V, flashing purple for 3-3.65V and red for <3V
When discharhing: flashing blue for 3.65-4.2V, flashing purple for 3-3.65V, flashing red for 2.8-3V and solid red for <2.8V

Charge test:
The included 18650 3,400mAh measured 3,210mAh in my MC3000 for about 11.9Wh energy.

Recharging using a 5V 2.4A adapter:

Thrunite battery Took 2:05, requiring 14.1Wh to bring the battery to a full charge. In the graph you can see that most of the charge curve belong to the CV phase, which I can only assume the battery is based on the Panasonic NCR18650B. The charge time can be reduced by using a higher quality cell.

Sanyo 18650 GA:
In progress

Sont VTC6:
In progress

*****
Thrunite claims an input current of 2.4A but does not specify the charge current. I got a peak input current of 2.1A and 2.35A to the battery during the CC stage. Whether it is ideal or not to charge a battery at this high current is up for endless discussion just like whether you should store lithium batteries fully charged for long periods of time. Technically speaking its not the best way to charge a battery all the time, but it is still way less than 1C and we are yet to prove that it does significant extra damage to the cell on top of regular usage and wear.

I for one like to charge all my 3-3.5Ah cells at 0.5C, but would gladly put my cells into the C2 if I ever needed a quick charging.
*****

Discharge tests:

Current/Voltage test: There is no doubt the C2 has very high current output capabilities, the specs showed up to 3A and my unit managed to put out up to 2.5A load, maintaining 5.1V+ which is excellent.

Test #1 was to measure the highest possible efficiency by applying a very small load of 0.5A. It yielded 10.45Wh at 88% efficiency, which is good for its size and battery configuration. At the last 10 minutes the voltage dropped out of regulation and started to decrease until LVP kicked in.

Test #2 has a much higher load, at 1.5A I measured 8.54Wh, which translated to 78% efficiency. Same as above the output voltage dropped below 5V in the last 10 minutes.

Test #3 is the most important one: this time I connected my iPhone 7 Plus which takes 2A on the input side. The C2 delivered the required current and maintained a very stable output voltage, charging the phone from 5% to 78%. Same as above the voltage dropped below 5V during the last 10 minutes of charge. For this test I used a Sanyo GA but will test again with the Thrunite cell.

So you may ask… how does this compares to a dedicated powerbank? Well, normally with my iPhone 7+ I can get 2 full charges from a standard 10,000mAh powerbank eg, Xiaomi 10,000mAh v1 with 3×18650. I’m getting ~70% from the C1 with only one cell, so the performance is more than fair considering one cell is used at a time.

Notes:
-Do expect some heat when drawing high currents, but the aluminum housing did a great job dissipating the heat.
-Swapping cells with the C2 connected to power is possible and will automatically continue with the charging process.
-Parasitic drain is negligible at 0.012A
-Battery measured 2.83V after taken out of the unit right after LVP kicked in.
-Overload protection limits the output to 2.5A
-Charge current too high? Just connect it to a 1A or 1.5A current controlled adapter such as the Apple 5V1A charger.

Veredict: The Thrunite C2 is small in size, but deals huge numbers when it comes to power delivery. This is the most powerful single cell powerbank I’ve tested, and certainly the fastest USB powered charger. There is no other product that offers the same level of performance and convenience on the market. I’m happy with the performance and will be keeping one in the “bug out” kit.

What it is good for:
-To be used as the main charger of a portable flashlight kit, at 2A+ charge rate it cuts the charge time in half compared to standard 1A chargers.
-Much better USB output capabilities compared to similar products such as Nitecore F1 and Liitokala Lii-100. On par or even better than other dedicated 1-cell powerbanks.
-Quick-swapping 18650 cells means that this is the perfect USB power supplying device for those who have many spare 18650 cells. The 90% of BLF’ers maybe?
-Enclosed battery design allows to be carried anywhere without worrying about loose batteries.

Points to consider:
-Battery life might be affected if high charge rate is used all the time, but can be countered using lower current USB sources.

Thanks for reading and I hope this review has been useful to you.

Bluetooth Audio Receiver



Official specifications:

• Bluetooth version: bluetooth V3.0 + EDR
  
• Supported bluetoothprofiles: A2DP
  
• Operational range: up to 10m/33ft
  
• Input: AC 100V-240V
  
• USB output: DC 5V/1A
  
• Dimension: 39 × 39 × 31mm
  

• Power consumption when idle is 0.08 watt
  
• Power consumption when playing is 0.5 watt
  
• USb output is coded as usb charger (DCP)
  
• Weight: 37.0g (Without accessories).
  
• Size: 66.2 × 38.7 × 38.5mm