USB-A was not designed for high-powered recharging, and these lightweight PBCs usually supplied around 13 W. Table 19: USB-C Power – Anker PowerCore Solar 20000 and Nitecore NB20000 name Table 15: Cold Delivered Energy Performance – Anker PowerCore 10000 PD Redux and Nitecore NB10000 name For me the main selling features are the ruggedness, waterproofing, build quality and big capacity. Now if I do go somewhere sunny (e.g. beach) getting even a 10% boost to its already nice capacity is a bonus. My advice is to use the built-in at high altitude where the UV is stronger and the temperatures lower, or to not use the solar panel at all and keep the Powercore in shade so it lasts the longest time, to not use solar at all and carry more Powercore, or invest in a larger panel (21W is a good product) and keep Powercore in cooler shade.

PowerCore - Anker Common issues and troubleshooting for PowerCore - Anker

A watt-hour here, a watt-hour there, and pretty soon you’re talking real energy.”– Not said by Senator Everett M. Dirksen Table of Contents The issue with this small solar panel is it’s not far off useless, it’s adds about 50% more volume / weight but you can’t be assured of sunshine and it takes days to make 50% recharged. No, you’d want either a 21W solar panel, which is actually very useful and I’d consider in a non-minimalist kit, and/or just plenty / large Powercore. The following graphs show the differences between the manufacturer’s specified energy density (Wh), energy consumed during recharging, and energy delivered by the USB-C port for the Anker PowerCore 10000 PD Redux and Nitecore NB10000. Chart comparing Anker PowerCore 10000 PD Redux energy specified by the manufacturer, consumed during recharging, and delivered by the USB-C port, in watt-hours. Chart comparing Nitecore NB10000 specified, consumed, and delivered energy, in watt-hours. Table 8: Delivered Energy – Anker PowerCore Solar 20000 and Nitecore NB20000 name So of the solar panel, it will only be capable of making net energy after the conversion in the brightest conditions. You can charge larger devices with the PD Port. It includes any gadgets within the charging range of 30 W, including laptops. The power bank has up to 30 W of charging power, which enables us to charge these large gadgets. You can charge Apple’s USB-C MacBook, and also their iPad Air. This PowerCore Speed 20000 can also charge Chromebooks because of has a USB-C port.Equipped with 2 USB Type-A output ports, the Anker PowerCore 20000 allows for efficient charging of multiple devices at the same time. The battery technology utilized in this power bank is Lithium Polymer (LiPo), which ensures long-lasting power and reliable performance. With a battery capacity of 20000 mAh, it offers sufficient power to keep devices charged for extended periods.

PowerCore II 20000 - Anker US

The biggest thing about the power bank is has two output ports. There is a USB-C PD port, which is the focus point of this Power bank. Another port is USB-A, which provides standard charging. The charging range of the USB-C PD port on this power bank is 30W. The luxury of charging with this power bank is that it has more than the regular charging speed for Power Delivery charging. Other power banks have an 18W PD charging rate while it has a charging rate of 30W. You need experience with your gear on your trips to judge how much PBC capacity you require. Previously, Ryan Jordan published empirical guidance in this article’s “Charging Batteries” section if you don’t want to dive into PBC testing.

I measured 1.8 Wh of energy added to the battery in two hours of winter noon direct sunlight. During June, it might charge twice as fast (but only with clear skies and no shade, and while always pointed in the optimal direction). Even under optimal summer conditions, it would take more than a week for an empty Anker PowerCore Solar 20000 to recharge fully. Chart comparing measured Anker PowerCore Solar 20000 recharge watts for an AC charger, measured December solar power, and expected June solar power. Higher numbers are better. Recommendations

Anker PowerCore II 20000 Review | PCMag Anker PowerCore II 20000 Review | PCMag

Anker PowerCore Essential 20000 features: Charges 2 devices at once | 1 USB-C port | 100% charge within 10.5 hours | 20,000mAh battery capacity Nitecore PBCs are lighter than Anker PBCs due primarily to the materials used (carbon fiber frame and panels on the Nitecore vs. plastic on the Anker): Chart comparing PBC weight in grams. Lower numbers are better. As shown above, a higher PBC weight does not mean more delivered energy. However, those extra grams might add other features like ruggedness and lighting. Based on what I’ve been reading about solar panels peak output is somewhere around 14W/square foot, and this being about a tenth of a square foot, you can probably expect a 1.4W output per hour in full California sun. I have kept the unit in full sun for a few days and still haven’t registered a 25% increase yet.Market research reveals dozens of different types of portable battery chargers from too many brands to count. A full round of tests for one PBC takes about 11 days. Therefore, it is essential to narrow the field for the sake of time. We depend on our phones for a lot of things: communication, transportation, medical needs, and more. They keep us safe, keep us connected, and keep life going. That is why you cannot afford to have your devices run out of battery when you are away from home. There is no need to sleep with these PBCs in above-freezing temperatures: Chart comparing energy wasted by four days of storage in a refrigerator. Lower numbers are better. Tables from the BatteryBench test results can be found scattered throughout the rest of the article in the relevant sections. Table 5: Basic Measurements of Anker PowerCore 10000 PD Redux and Nitecore NB10000 name

Anker Support Power Banks’ Charging Issues - Anker Support

Shargeek Storm 2 t ech Specs: Charges 3 devices at once | 2 USB-C ports | 1 USB port | 100% charge within 90 minutes You can use the USB-C PD port to recharge your power bank, and so you can recharge at the same speed, this is the best part of Power Delivery power banks. 2. Recharge with 30W Power Delivery wall chargerFar better is to get a huge solar panel and just a regular 20000 - actually the 26800 with dual input is a good match, or to give up on solar and just carry more Powercore instead. When this article was written, the Nitecore NB10000 and NB20000 portable battery chargers seemed to be the highest-performing models available, though they have had some issues. Testing isn’t that hard if you are determined to find the best PBC that meets your needs. Physical Assessment: PBC weight and dimensions, evaluations of button and light usability, case design, and USB port quality. The 20,100mAh PowerCore II has ample juice for charging phones and tablets repeatedly, making it an ideal travel companion. In testing, it added 28 hours, 5 minutes to an iPad streaming full-screen video over Wi-Fi at maximum screen brightness. Unsurprisingly, that's right on par with the PowerCore+ USB-C (28 hours, 34 minutes), but for some reason slightly behind the 18,000mAh Griffin Reserve (30 hours, 4 minutes), possibly due to differences in power efficiency.