best external battery or power bank for my laptop

[JCR67]

best external battery or power bank for my laptop

[NonSequitur777]

@JCR67,

Welcome to our HP User Forum!

Whatever response you are going to get in this forum, it will be somewhat subjective, and my response is no different.

Anyway, it is important to establish some facts. According to: https://partsurfer.hp.com/partsurfer?searchtext=2D115AV, your HP Laptop PC 15-dy2000 PC IDS Base Model came with this 45-watt AC adapter with p/n: 741727-001 "Smart AC power adapter (45 watt) - 4.5mm barrel connector, non-power factor correcting (NPFC) - Requires 3-wire AC power cord with C5 connector".

My suggestion (I own one myself) is a HALO Bolt 58830 mWh Portable Laptop Charger with AC Outlet, such as seen here: https://www.amazon.com/Halo-Portable-Laptop-Charger-Starter/dp/B07BDFLN3L/ref=sr_1_1?crid=GAKSMVOMFU....

The HALO's battery has an impressive 58,830mAh capacity, making it one of the most capable chargers I have ever owned. It can charge a laptop for up to 11 hours (though your experience/mileage may vary), it should at least be enough to keep your laptop powered for an 8-hour workday (including your lunch hour). 

Hope this was helpful.

Kind Regards,

NonSequitur777