You can also charge the Anker Prime using both USB-C ports at the same time, for a combined recharging rate up to 170W. That means you can completely refill this whopping 27K mAh battery in under 40 minutes. I thankfully had an Anker 737 GaN Prime charger that was up to the task, and it's fun to see the percentage climb. The compatibility test is run on specific device models and software versions. Hardware or software updates may affect compatibility. A. Yes, sort of. The USB 3.0 standard can transfer more data and power than the USB 2.0 version. This means that if your power bank has a USB 3.0 slot, your device supports the faster charging of a USB 3.0 connection – and if you use a USB 3.0 cable, you’ll charge faster than you would if any one of the components relied on USB 2.0. For those who are new to power banks or have difficulty deciding which kind to get, capacity is the first and foremost thing to consider because it determines how often you can charge your device. That app is essential because there's a Find My feature built into the battery. It doesn't work like an AirTag over UWB, it's only Bluetooth, but it's useful if you misplace your battery in your office (or you have multiple batteries, like I do).

Extended battery life – A high-mAh power bank will offer longer battery life than a lower-mAh power bank. This is due to the increased capacity of the cells and the battery protection circuitry.Avoid PD-fast-charging the iPhone 11 Pro Max from the powerbank’s USB-C port when away from civilization as it needs more power for same amount of charge. Ideally, charge from the regular USB ports. The Anker Prime series of Power Banks, including the Anker Prime 27,650mAh Power Bank (250W) and the Anker Prime 20,000mAh Power Bank (200W), are for people who truly love to geek out on power banks. If you came looking for the absolute best power bank you can buy, this is the best we've tried. When the output is at 5 volt, the Mah capacity of this battery will be lower. The capacity of the battery while charging at 5 volt output will be 37000 mWH divided by 5V or 7400 mAH. So, if you wanted a 1000mAh powerbank and planned on using it for 4 hours each day, your calculation would look like this: 4 x 1000 = 4000mAh . Finally, subtract the power bank’s weight from that number to find out how much mAh you actually need. You need a lot of power: Thankfully, the battery on the Tylt Bottle 2 isn't so big it adds too much weight, but that also means it isn't powerful enough for multiple charges.

We expect to fully charge our iPhone 13/12/11/XR with about 3000mAh battery a minimum of 3 times using a 10000mAH power bank as 3000 x 3 = 9000. However, in reality, your phone will get fully charged about 2 times!! Quality power banks have higher efficiency of up to 95% due to optimized circuits. Such power banks can better fine-tune voltage and reduce power wasted due to heat. Use Quality Short Cables If you want to do the conversion by hand, here’s the formula behind our Wh calculator: Wh = mAh × V / 1000 As you already know, the more capacity a power bank holds, the more it can provide. On the flip side, the more powerful a power bank is, the bulkier it is. They also require a longer charging time and may not be allowed on flights.Using the Anker Prime power bank, we were also able to test the charging speed claims of other power banks, as the Anker Prime will report charging speed in wattage. However, we don’t know the capacity of smartphone battery and other devices. So we recommend to use 5000mAh for most of smartphone and tablets. For example: iPhone 6/6S: 2915mAh, iPhone 7: 1960mAh, Galaxy S III: 2100mAh. Is there a difference between capacity and mah? The best power banks we have tried have all come from Anker, but that doesn't mean Anker is the only brand you should consider. All of the power banks on this list passed our testing, traveling with us on the road and powering our devices at home. Anker is the best, but these batteries from Baseus and Otterbox performed well. You need fast power: This is a very slow charger, whether wired or wireless, so it's better for casual charging while you sip your water and read a book.

Omni Mobile 25600– Our last choice (due to its 1.7 lb/770 gram weight). This powerbank has all the features of the Anker PowerCore Elite but has one extra feature – wireless charging. It however weighs about 100gm/3.5oz s more than PowerCore Elite III and you will also need a USB-C adapter for it. Even with an extra USB-C adapter (we recommend ZMI 65-watt PD adapter), It will cost lower than the Anker and offer wireless charging, though at the cost of extra weight. Omni Mobile 25600 is also the only powerbank of the three to offer passthrough-charging. This means you can charge your S8+ and the iPad while charging the power bank from the USB-C port. Your phone should last more than a day with a 5,000 mAh power bank. And the range of between 7,000–10,000 mAh is a great choice for phone users with specific needs or situations. 2. Is Higher mAh Better for Portable Charger? New power banks are now available in the market, supporting fast-charging and often delivering up to 9 Volts. Most of the power banks have battery cells internally connected in series to achieve the required voltage. For example, if a power bank has four Li-ion cells connected in series, it will have an overall voltage of 14.8 Volts.Speaking of that wall plug, it's the most useful feature ever on a power bank. Some power banks come with a built in USB-C cord, but this Anker comes with a two-prong power outlet plug. That makes it a wall charger as well as a power bank, and the utility can't be understated. More consistent power output – Higher-mAh power banks are typically designed to provide more consistent and reliable power output than lower-mAh power banks. This is due to their larger cells and internal protection circuitry.