(NEW) Anker 24,000mAh 3-Port 140W Output Powerbank

I needed a charger that would reload my iPad Pro. I have a couple of quite powerful battery packs, but the best of them struggled even to maintain the iPad charge at the same level (though it does well in recharging my iPhone). So, more power needed. This battery is a chunk, It’s big and heavy. When I first got it, the booklet advised putting it on charge right away and, yes, that is needed. The display showed it at only 16% of full charge out of the box. I put it on a regular 3amp (about 15w) charger and the display usefully, if rather disappointingly, predicted it would take about 16 hours to full charge (It did start at 99 hours immediately, but then it got its act together and gave a more manageable timeframe though the timing does bounce around a bit). I left it on charge overnight and it was 100% the next day, so I’m guessing around 12 hours from 16% to 100%. I would have preferred faster, preferably a lot faster. But Est Quod Est… In my first trial at using the battery to charge my iPad the iPad was at 83% and the battery at 100%. It charged the iPad up to 100% in maybe 45 minutes which ran the battery down to 92%. So a 17% iPad charge resulted in an 8% run down on the battery, About a 2:1 ratio. That implies I should get two whole iPad charges out of one full battery charge and the charging should take about 6*45min or about 4.1/2 hours. Not too bad. Again. I would have preferred more charge for a shorter time. But this was only my first pass at calibrating the charging capability of this battery, so we’ll see how it pans out in the longer term. In the meantime, I really like the display. It shows the current draw, predicts charging time and shows the current charge level of the battery—all very useful metrics. It is chunky and quite heavy, which somewhat detracts from its portability, but more powerful batteries are always bigger and heavier. That’s just the way it is. My interim judgement is that it’s a plus and assuming it is able to reliably deliver charges to my iPad for a good number of battery recharge cycles, I will be happy I got it. I may update these metrics after I’ve run it for a while, but for now: recommended.