Yowosmart 8000 mAh Battery Charger

Yowosmart 8000 mAh Battery Charger ReviewIn an ever connected and on the go world, we struggle to keep our devices charged. Wall outlet space is sometimes a premium, or may not be available at all. For the traveler, for the theme park vacationer, for the camper/hiker/backpacker other options are often needed. This is where the world of portable batteries shines. There are plenty of options to pick from. Portable batteries come in all shapes and sizes, with the most common differences residing in the number of mAH (milli-Amp-hours) of the battery, and the output charge rate (1A-2.4A). I have been given a D8 iBag (Model No. PPB-1209) to review.

Initial Impression:
The packaging is clean and has the “floating product” feel, that I have come to really enjoy in products. This style of marketing/packaging showcases the product in clear plastic, leaving the remainder of the included accessories out of sight, hidden behind cardboard. I find that this lets you see the product in a more flattering manner, than relying on photographs or diagrams. Ultimately, this allows the end user to really have a feel of what they are buying. Anymore, I look for this packaging, as it feels more modern and consumer centric. Opening the top of the package, you can slide out the clear plastic tray. The iBag battery comes partially charged (mine had about 50%). It is recommended to charge the battery to full power before using. This is a general rule for this type of battery and is mentioned (although somewhat hard to find under Section 4 User Instruction A. 1.) in the instructions. In the small plastic compartment below the battery, you will find the instruction manual and a micro USB charging cable.

Yowosmart 8000 mAh Battery Charger ReviewEvaluating the manual, it becomes immediately obvious that English was not the primary language for this device. It is uncertain if this is a translation or written in English by a non native speaker. For example, under common questions and solution (S is missing) you see sections entitled “cannot charging” and “cannot charging other electronics devices.” This is not a deal breaker, but is a detail that I notice while reviewing a product.

The Device:
This is a Lithium-Ion polymer (Li-po) 3.7V 8000mAh battery. The device is glossy black with a gray D8 on the top. It is rather sleek and stylish. Similar to other batteries, you can expect about 500 charges out of this device. I have not yet reached anywhere near this many charges, with any of the batteries I own. I am still uncertain if this is a legitimate number or if it is just included to state it will fail eventually. The device takes about 6 hours to charge from empty. This is accurate in the 3 times I have charged it this week. I have used this device to charge my iPhone 6S plus, as the primary charger this past week. By the end of the day I have roughly 30-50% power remaining on my iPhone 6S plus. I was able to charge to full in about 2 hours (roughly 1% per minute). I was able to get about 3 charges (never from empty) on my phone from the device, before having to recharge. This is on par with the current trends in the industry. Assuming approximately 80% energy conversion (80-90% is assumed) you can see that (8,000mAh*0.8)/2750mAh=2.3 charges. I never charged from empty so I was able to get a bit further with the battery). I was able to get about 1 half charge on my iPad Air2 (7340mAh battery) (8000mAh*0.8)/7340mAh=.87 charges. These numbers will be markedly reduced if you are using your device at the same time as you are trying to charge them. It is my recommendation, from multiple tests, to allow your device to charge in their off or standby modes. Otherwise, you essentially will keep your devices power at its current level, without making any progress towards charging. This device does have 2 outputs, 5V 2.1A out and a 5V 1A out, standard USB A. I tested them with my multimeter and these output values are accurate. This allows you to charge at peak rates. Input power is via MicroUSB 5VDC/1A charging.

Yowosmart 8000 mAh Battery Charger ReviewThe device weighs in at 225 grams (7.9 ounces/just under 0.5 pounds). I measured the iBag at 5 1/8 inches long by 2 5/8 inches wide by 7/8 inches tall. On an interesting aside, I measured in metric as well, to evaluate the listed the dimensions of 120x62x16mm. I found these values to be off (rounded edges make accuracy of measurement difficult). The values I found were: 130mmx 68mm X 23mm. To get these, I placed pieces of tape on the sides to create a flat, square edge to measure. The dimensions are larger than reported, but not by much.

Again, like most battery chargers, your device will have better luck charging if you are not using it at the same time. It can charge 2 USB devices simultaneously. I found that I generated about 1% per 2 minute on my iPhone 6s Plus (1A output) and 1% on my iPad Air 2. The instructions recommend to charge the battery when a single Blue LED is flashing (Capacity is less than 10%). The right most LED will flash while charging (indicating where it is in the charge cycle) and all lights will remain solid when charging is done. This was tested and found to be accurate.

I am a fan of the LED power capacity lights. They are a very handy way to see what percentage of power is remaining in the bank. Hold the small button for 2 seconds and the LEDs will illuminate, detailing the remaining power. 4 Blue LED=75-100% power, 3 Blue LED=50-75%, 2B Blue LED=25-50% and 1 Blue LED=10-25%. If you are looking for a portable battery system, I would consider this system. I find the sweet spot for weight to charge ratio is about the 8000-10000 mAh battery. I have 2,000-20,000 mAh batteries and love some of them and hate others. This iBag battery will charge most phones just at 2x and current iPads about 50%-75% power. 10,000 mAh would likely give you 1 charge on your iPad and 3 charges on your iPhone. I like that this device is minimalistic and pure in its efforts. I have some power banks that think it is a good idea to add LED flashlights. Why would I want to waste the available power for my phone on a LED flashlight that does not provide much light? Flashlights are better for this task. Multi-tasking, in this instance, is not for me. I am glad that this device does what it does best, charge my phone. The iBag is universal and will charge anything that charges via USB power. Other than the manual, I do not find any flaws with this unit. I would rate it at 4.5/5 stars.