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The specifications are listed on the bottom, but are not fully correct, the box can also deliver QC 12V output, but has trouble maintaining that voltage when loaded, the USB-C connector can supply 5V. Insert one or two cells and connect the USB device, the charger will automatically charge the external USB device. The output supports most of the fast charging protocols. In case your device does not support fast charging, by default the output current and voltage of the charger will be 5V 2A. If the device supports fast charging, the charger will adjust the output power according to the device in question. The maximum output power is 18W. In the event of a short circuit or reverse polarity, the charge current and battery percentage will both be 0.
USB-C and USB-A ports can both be used for output and charge two external devices at the same time. The power bank can deliver a fair amount of power, but not the full QC2/QC3 18W, more like 15W, the coding is fairly universal, this means most device will be able to fast charge from it With support for both 18650 and 21700 batteries it is possible to configure it for light weight or high capacity very easily (50g and 3000mAh difference). PB2S has two sweet details. One is the ribbon added to the channel. When you remove the battery, you only need to pull the ribbon up, and you don’t have to dig the battery by your fingers. This will protect the battery and your fingers. Holding the button down (instead of a short press) to turn the power bank on will enter low current mode, i.e. disable automatic power off when not loaded. Over-Charge: Charging a battery beyond its full level leads to permanent or temporary damage of the battery. (Source Quora)After inserting the battery and pressing the side button, the display shows "OUT1" as output with a battery charge percentage of 98%. The XTAR PB2S is a portable battery charger with Power Bank function to recharge your mobile devices anywhere and anytime outdoors.
The battery level percentage is also a very good visual indication of the charge level of your battery. Uses.It is perfect as an outdoor camping and hiking power supply. So, it is also a good holiday or birthday gift for outdoorsmen. The display using the PB2S as a power bank with two 5000mAh batteries inside. In my tests I managed to charge my current samsung S20 smartphone in about 1h20min.
The charger has a very low discharge current when not used, except if the batteries are completely empty, then it will drain them too much. This means it is a bad idea to leave batteries in the charger/power bank when not used. The box can also do QC12V, but here the converter has some trouble with a 10ohm (1.2A @ 12V) load, maybe that is the reason it is not listed in the specifications. It maintains the voltage above 11V, this means it will work with most (if not all) devices requiring QC12V and not using more than 1.2A. Over-Current; In an electric power system, over-current or excess current is a situation where a larger than intended electric current exists through a conductor, leading to excessive generation of heat, and the risk of fire or damage to equipment. (Source Wikipedia) At 12V the output is down to 1.2A, but as can be seen below the output is depend on battery charge state. PB2S has OV activation function to revive over discharged batteries. By inserting a battery that is too low, the charger will automatically detect and activate the battery.You decide the PB2S capacity. With two 21700 5000mAh batteries, it has the largest capacity of 10,000mAh. You can also use two 18650 3600mAh batteriesto get a capacity of 7200mAh. Charging is done simply via a USB-C Cable, XTAR supply this cable (which measures 80.0cm in length) which can also double up us a USB-C output cable to your USB-C device using the USB output port. Intelligent detection and multiple protections ensure safety. High precision, auto cut-off when fully charged. Three-stage charging (TC-CC-CV) makes batteries healthier. Plan on a journey or an adventure? You must not forget the charging gears. For me, I usually take many electronic devices such as iPhones, earphones, iPad, flashlight and camp lamps. Therefore, I need lots of power. But carrying a large capacity power bank is so heavy. How can I deal with this problem?
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