Power bank for Anker 737 compatible with Dell XPS 15 9520
Power bank for Anker 737 compatible with Dell XPS 15 9520
You own a Dell XPS 15 9520 equipped with an i7-12700H processor, 32GB RAM, a 1TB SSD, and an NVIDIA 3050 GPU. Your previous model was the XPS 15 9550, which had an i5-6300HQ, 32GB RAM, a 1TB SSD, and an NVIDIA 960M chipset. I bought a Dell PW7018 LC powerbank for its USB-C capability, since it supports charging via USB-C, which your new laptop also uses. My goal is to have reliable power backup during outages.
I usually keep my XPS 15 9520 connected to the wall and two external monitors. During outages, I rely on the laptop battery, which typically lasts a few hours. Previously, with the 9550, I got about an hour and 45 minutes of backup using two PW7015L units—roughly 3.5 hours total. My old machine provided around 2 hours at most, mostly around 1 hour 30 minutes.
Recently, when a power cut occurred, I connected the new laptop to the PW7018 LC. It lasted about 50 minutes before dying. Using the other PW7015L gave me similar results—around 45 minutes. This suggests the difference in performance between the two power banks might be due to their charging interfaces and possibly their internal efficiency.
My concern is whether a larger capacity bank (like Anker 737) would extend the backup time. Both models have 18,000 mAh batteries, but the key factors are USB-C compatibility and how quickly they draw power. If you connect your old PW7015L to the new laptop immediately after an outage, it should provide more than 50 minutes. However, if you wait until the battery drops to zero before connecting, the runtime will be shorter—possibly closer to 45 minutes or less.
The main difference between the PW7018LC and PW7015L seems to be USB-C versus barrel connectors. Both offer similar mAh ratings, but the interface matters for fast charging and stability during outages.
Regarding charging your XPS 15 9520 while using the laptop, it’s important to note that connecting it at full charge (100%) will drain more battery than plugging it in directly from a wall outlet. If you let it charge slowly to around 50% before using it, you’ll get a longer runtime.
If you’re considering the Anker 737, it’s rated for up to 50 minutes of continuous use under load. Since your laptop will likely draw more power during tasks, expect shorter backup times unless you manage charging carefully.
Let me know if you need help setting up the connections or optimizing usage!
Are you wondering if others are using this power bank? It appears to offer strong battery backup, as seen on Amazon—consider sharing it!
I own this power bank and connect it to my MacBook Pro. I typically charge it completely, which uses about 60-90 watts. At 95 watts it provides roughly an hour and a half of usage, which should be sufficient for you. The charging process from 0 to full capacity differs. My laptop has a 6500mAh battery and draws 100 watts at 5A and 20 volts. Even though the power bank holds 24000mAh, it usually fully charges the laptop but keeps itself at around 10% under optimal conditions.
You link the powerbank once your MacBook Pro reaches specific levels—typically around 20%, 50%, or 100%. The charging stops once the battery hits those marks. After about 1.5 hours, the battery percentage usually rises steadily depending on usage and settings. Connecting it when the battery is low (like 10% or 20%) tends to draw more power compared to when it's already at 80% or higher.