Monday, February 20, 2017

Would you like to add power to your drink?

This is (mostly in part) added info for my previous blog post about power banks, you see, most power bank testers/reviewers have those wonderful USB voltage testers and I don't (for now) so I can't really back up most data that I've seen online or their actual specs. Also, I neglected to take pics because I was lazy (I'm still kinda lazy, sorry.)

Anyway, I tried making a more in-depth approach to testing the power banks by using my digital charger (which can use USB as a power source) and charging my phone at the same time, kind of like a stress test of sorts:

Normally the charger can use up to 1 amp per battery (with 2 batteries like above) but if the source is unable to provide enough amps, the charger will try to make do with what's available. In this case, if both ports are used, the Pineng can supply 1.4 amps on the 2.1 amp slot and the Romoss can provide 1.2 to 1.4 amps (it seems to fluctuate depending on available power, the lower the available charge the lower max amp provided) on the same 2.1 amp slot.

Granted, the difference between the two is partly age and battery technology (the Romoss is an older model but just a month old and uses Lithium Ion Batteries, vs the newer model Pineng with a Lithium Polymer battery) but you can see that there is a marked difference in performance when both slots are used. On the other hand, if only one slot is used, they both provide at least 2.0 amperes (my charger can only utilize 1 amp per channel at max of 2 channels so I cant say for sure if they are pumping 2.1 or just 2) but it might be safe to assume that it would provide that amperage as advertised.

So between the above two, it's almost a no brainer on what to choose (if I was asked on what's better) since the Pineng is cheaper (specially if you can get it on a Lazada sale) with newer technology for safety and battery, it's less bulky and lighter than the Romoss.

Take note though that the Romoss Sense 6P is now available on Lazada and is sporting the same LED/LCD percentage screen with the same Lithium Polymer battery as the Pineng, so they might turn out as even in terms of performance (or maybe slightly better for the Romoss) but on a sale day, Pineng is really cheaper.

With that out of the way, I find myself pretty lazy of late that I barely make my favorite Vietnamese coffee and just use instant coffee to start my day, and it's not really providing me with enough zing to do my thing. I'm guessing that the Vietnamese coffee has a lot more caffeine than the instant one which makes me less than powered up (yeah, excuses hahaha) but I'll see of my little experiment with the power banks will apply to me, I'll strive to make iced Vietnamese coffee tomorrow :)

Saturday, February 18, 2017

No promises

Yes, it has been a long while since I tried writing again on a blog, but I would refrain from doing anything celebratory for now, at least until I can rightfully say 'I'm back.'

One of the few things that has been on my mind of late is gadgets, specifically power banks as our country is known for it's yearly brownouts, storm induced power failures and that most of our portable devices are power hungry. I usually imagine situations similar to the last great storm that affected our area, wherein our roads got blocked by toppled trees and the power was out for many days. We would survive on my 10,000 mah power bank for the night using a USB fan which was both from cdrking as well as a hand wound USB output charger for my other gadgets.

Now 10,000 mah a few years ago was incredible, and would last you a day or more if used sparingly, though I seriously doubt that it was truly 10,000 mah in capacity (we are talking about cdrking so I'd peg it around maybe 7.5k in true capacity.) Nowadays, 10,000 is still good, but the real grail (and affordable) capacity is 20,000 mah IF you know what and where to look.

To date, there are two that I would handily recommend Romoss and Pineng, both go for around less than 1000 pesos in Lazada and in some malls and are both of good quality. They weigh practically the same and have nearly the same technology inside. Plus, I'm not afraid they would blow up on me if I charge or use them (as long as they are the legit ones). I got my Romoss Sense 6 from Asianic at 999 pesos a long time ago, it's the LED light power meter version (4 LED's representing 25% of a power level) but you could get the newer ones at the same price at Lazada where it used to be that LCD power banks were pricier (now sometimes the LCD versions are cheaper, I guess it depends on the store) also Pineng has those LCD 20,000 mah power banks at around 799 or so (they fluctuate at times.)

Now the thing is, there are two kinds of power sources for the current gen power banks, Lithium Ion and Lithium Polymer batteries though some reputable sources say that they are basically the same in terms of safety and capacity, they do differ in shape and weight. Lithium Ion powered banks are heavier and bulkier compared to the Lithium Polymer ones because Li-Ion ones use those same batteries used in laptops and vape devices, 16850 batteries that look like oversized AA batteries and you need a few of them to make up the total available power for your devices. Li-Po batteries though can be any shape and size which helps in both bulk and weight as they can be one brick (as is the case for the new models) that powers the whole device and because of this, they are generally more expensive than Li-Ion batteries but are easier to charge, lighter and less bulky (the newer power banks can handle 2.1 amperes charging which makes the usual 11-18 hour charge at 1 amp to a little over half that amount.)

Both seem accurate in their battery capacities regardless of type (my Romoss is Lithium Ion and my Pineng is Lithium Polymer) and both have dual output charging that helps charge 2 devices at the same time albeit one is at 1 ampere and the other is at 2.1 amps. Overall though, since I'm a bit OC, the Pineng with it's lcd screen for showing current available power in percentage and it's lighter, less bulky frame is fast becoming my favorite to bring along on trips.

Now I do not represent either brand or Lazada for that matter but I just thought I'd disclose some of my stuff and preference for people to compare with their own experiences and ideas. And maybe see what else I could be missing out of or help others make a decision.

Here's hoping I can find time to write again and hopefully it is of interest to other people.

Edit: added more info with my next post here.