Its a good power bank ,it's 20000 mh powerbank...and I have Asus zenphone max 1 pro.,it's 5000 mh..which means it has to come 4 times....but for 0 to 100%charge will take 40% of power bank..which means 2 .5 times I can use ....eventhouh it won't give that promising capacity...comparing to others. This one is good...and after continuse use for 1 year it gives same power which means it is good and durable....
Just got in 2 days.. Used no. Of powerbanks and now switched too portronics...Just amazed that being a 20,000 mah battery inside..this product is not having much weight as compared with other products in this segment...Good built quality enhances its durability and portability...Supports upto 12V input/output thats means if ur phone having fast charging technology , it can charge in same time as charging through main supply... Digital display is also makes this product more sophisticating for charging.... Hence...I prefer this product to all techy people... Coz...this is we called "Value For Money"
Made with perfection in every inch of its design.. the white bright display is awesome... the display of battery percentage is accurate... the cable That came along with the product is a low loss low impedance one so the charging is happening in top speed.. this is my second portronics product... and you know what I just love this company.. all the best team...
Portronics POR-783 is an excellent power bank. I have been using it for few days and I admire the product.
Features: One of the feature that makes the product stand apart from competing powerbanks is its Quick Charge capability (both Input and Output). One of the output USB ports is rated at 5V,2.1A/9V,2A/12V,1.5A; which means it can provide 18W of power at 9V or 12V. This can recharge QC compatible devices much faster than standard charging. A powerbank of such capacity, 20000mAh, usually takes 10 hours or more using standard charging. But, both the input ports, Micro-USB and USB-C is Quick Charge compatible and is rated at 5V,2A/9V,1.5A; so 18W of charging if the charger can provide it. We can also use both the inputs at once for charging, but it is capped at 5V,3A; which is 15W of charging power. In my charge test, 0%-100% took about 5hours 30minutes (using QC3.0 charger).
One of the other useful features is the LCD screen. It has a digital display of the percentage of the battery left. The LCD shows whether the powerbank is discharging or charging. It also shows that voltage that it is providing (while discharging) or it receives (while charging). The LCD will remain on when the powerbank is being charged or discharged. When not in use, one press the button on the right side to have a quick glance of the percentage of battery remaining.
Build Quality: The powerbank is sturdy. The quality of the materials used is good. There is dotted pattern on either side of the powerbank to provide grip while holding it. POR-783 is a robust and quality product.
Comparison: I also own an Anker PowerCore Speed 20000mAh powerbank. It is smaller and is lighter than Portronics POR-783. In my opinion, it is not that bulky and I really like the product as it is. Actually, I like products which are bulky as it usually means its a quality product. The PowerCore Speed is made of Aluminium and feels much premium than the POR-783. But POR-783 uses more advanced and safer Li-Polymer batteries whereas PowerCore Speed uses Li-ion batteries. But, the PowerCore Speed is about twice as costly as the POR-783.
Eventhough its marketed as a 20000mAh powerbank, like all other powerbanks, the actual capacity is much less. I estimate it around 12000-13000mAh or so. The main reason could be the conversion loses. The conversion of the actual cell voltage, most probably 3.7V or so, to 5V, 9V or 12V causes a lot of energy to be lost as heat. The powerbank might be around 60-70% efficient in its conversion.
It would have been great if the POR-783 came with a small pouch or case like the Anker does. Also, the included USB cable should have been longer. The powerbank tends to heat up a bit while charging or discharging; but within acceptable limits. The area near the ports is where it gets hot and rationally thinking, its correct; its where the electronics are situated.
Registering the product on Portronics website within 15days of purchase provides the user with additional 2 months of warranty; which in total equates to 14 months of warranty. I actually feel that Portronics is a good brand, their website is well-maintained and even there is chat with customer service option which is excellent and not been in many cases.
Final thoughts/TLDR: Portronics POR-783 is an excellent powerbank and is well-priced. The product feels robust and firmly built. The features included are excellent. The customer service is excellent and quick to respond.
Is a good product you can fast charge it with 12v charger input can be from micro USB or type-C Output deliverance is good and according to your devices from as low as 5v to max of 12v it charge up the device as per device need. Battery Display is another good feature instead of looking at no. of light remain you can see the %battery left. A little bit heavy but comes with so much 20000mah power.
Though its price is relatively higher than other power banks of similar capacity, this is A SOLID THING. Holding this brick, you can feel the premium quality. I have tried other power banks and their capacity reduced considerably with use. This one has worked the best for me.
Product is brilliant , can charge my iPhone 4times on a full charge battery . But the biggest disadvantage is the size is too big 6inches long and way too too heavy . They need to work on weight of the product.