B&H Photo Video offers the HP Power Pack Plus 18,000mAh Portable Battery Pack Bag for $34.95 with free shipping. That's $15 under our October mention and the lowest price we've seen. (It's the best deal today by $75.) It charges up to three devices simultaneously via two USB Type-A ports and one USB Type-C port. It also includes a 7.4mm-to-4.5mm tip adapter and cable for charging HP laptops. (Laptop charging requires the bag be plugged in via the included power adapter.) Deal ends December 27.