![anker 20000 battery anker 20000 battery](https://images-na.ssl-images-amazon.com/images/I/41xrdm7TRZL._SS600_.jpg)
Chances are the battery in your Dell has 18V-19V cells so it refuses to accept anything less than 20V.
#Anker 20000 battery series#
They probably are using 3 parallel 2 series so would be 7.2V from which they can step down to 5V or up to 15V. The smaller powerbanks have fewer cells and so has fewer options for higher voltages, e.g.
![anker 20000 battery anker 20000 battery](https://cdn.shopify.com/s/files/1/0493/9834/9974/products/Black-04_1200x.jpg)
It is electrically less efficient for Anker to support higher voltage, it has to step up from 3.7V by a bigger factor so this is overall more the fault of Dell who could have made the laptop accept lower voltages. Who’s fault is this? Well a bit of both, Dell, if had made your device support say 15V, then it would have overlapped Anker, but if Anker had supported 20V they’d also overlap. The powerbank you have is “PD Output: 5V=3A, 9V=2.6A, 15V=1.6A” so you see it supports only 3 levels and does not do 20V which is the one voltage we know your Dell is expecting. In your case your device probably is going to only recognize 20V of which it can draw up to 1.5A. You see this problem fairly often and the only sure way is to test or find someone who has tested. As a result it is quite possible for any powerbank and device to not find anything in common and not function. Power Delivery negotiates for a common voltage and current, so the device and the powerbank must agree on something in common. This reply will not help but explain the challenge. Looks like a power bank from the laptop manufacturer is going to be the way to go for me. I’ve looked around elsewhere, and there doesn’t seem to be too much to choose from that delivers enough wattage. I guess it looks like Anker does not really make anything that will work for me. I also noticed that when I try to charge the laptop, the lights on the PowerCore do not stay on–in contrast, when I charge my cell phone, the lights stay on indicating how much power is left in the PowerCore. However, it never charged the Latitude even enough to power a boot up. Also, after the Latitude died, I left the PowerCore plugged in for several hours to see if it would charge the laptop (even if slowly). When I ran my Latitude with a low battery but the PowerCore plugged in, it did not seem to extend the battery life any significant amount.
![anker 20000 battery anker 20000 battery](https://images.tokopedia.net/img/cache/500-square/VqbcmM/2021/3/7/6b12a103-a8c3-42b5-8ba2-8be479cb3b70.jpg)
I tested the PowerCore to see if it would extend battery life or work as a trickle charger.