XTAR PB2S 18650 Batteries Charger UK USB C Port 18650 Fast Charger Unprected 20700 21700 Battery Charger Two Ports Output Not included Batteries (Black)

Product Information

The battery XTAR supplied me was their own branded battery. It’s an INR 18650 2600 High-drain Li-ion Battery. Below is table of the capabilities of this battery. Take out the battery and measure it with a multimeter. The voltage is 4.2V. The PB2S controls the charging cut-off voltage very well, and will not cause danger due to overcharging. XTAR PB2S beats all the other power banks because you can choose the best quality and capacity of batteries and can replace them as necessary, so it will have a longer lifespan. It also allows older cells to be used.

Battery charger and power banks don’t exactly have the best reputation, cheaper more inferior products have a habit of overheating and ultimately exploding. But the XTAR PB2S has all the protection that you could possibly want, these include: Use a XTAR PD3.0 adaptor to charge two XTAR 21700 4000mAh. The USB test meter read the output voltage of the PB2S reaches 12V, the current reaches 1.43A, and the power is 17.13W, which reaches the nominal input of PB2S.

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? The output current display is not very well calibrated, but it gives an idea about the current consumption or the connected device. PB2S is very convenient to use as a power bank. It can charge two electric devices at the same time through both USB and Type-C ports. This is also my favorite function, which is very convenient and fast. At this time, OUT1 and OUT2 will be displayed on the screen, indicating that dual-channel output is in progress, channel 1 is port USB, and channel 2 is port Type-C. You can find 10,000mAh power banks that are smaller than PB2S, but you cannot replace the cells! You don't know how good this power bank is! The built-in high-precision MCU makes the end-of-charge voltage up to ±0.05V, and the charger will automatically stop charging after the batteries are fully charged, safely and reliably.

The full charge took 2 hours and 28 minutes, and a total of 24.26Wh. This shows that the internal circuit of PB2S can judge the performance of the rechargeable battery, and select the appropriate current according to the internal resistance, voltage, capacity and other conditions to achieve safe and fast charging. In the event of a short circuit or reverse polarity, the charge current and battery percentage will both be 0. For those who have many 21700 and 18650 batteries, the XTAR PB2S makes full use of the idle battery. It is indeed a very good on-the-go choice. XTAR, specializing in the development and production of quality chargers, updates the PB2S charger with a new model that expands its use. I have always been attracted by this battery charger and today I can try, thanks to Xtar, the updated model that can also charge protected 20700/21700 batteries. The XTAR PB2S Battery Charger is suited for applications where a 18650 battery is required, these applications include torches, laptops, and vaping devices.In power bank mode, depending on type of battery, you can get up to 8000mAh for charging a phone, mod or earphones (or whatever is in need of a charge via USB). On a non USB C connection, this will charge at the lower 5v/2A (1A on a Samsung works phone). On a compatible QC3 phone you should get the full 9v/2A but I couldn’t test this as Oneplus use their own proprietary Dashcharge so I could only charge it at the lower power. The USB output port of PB2S doesn’t support QC3.0 and PD protocols, and the output voltage is about 5V. The charger is usb powered with a USB-C input and a USB-A output for the power bank function. With the supplied cable it can be charger from a USB-A charger and charge a phone that uses USB-C input. What is not specified is that the USB-C input can also works as a 5V output (With USB-C direction can be automatic selected). On some PB2S the USB-C is marked "in/out".

During charging, the numeric display shows the input voltage, current and battery capacity percentage.

In the end, it took about 2.5 hours to fully charge a mobile phone and a Kindle from a basic powerless state. The discharge efficiency of PB2S is good. At this time, the remaining power of two 21700 batteries is 20%. The voltage of both batteries is about 3.4V, which is balanced for two-slot discharge. From this, it can be judged that the PB2S discharge cut-off voltage is about 3V, which will not be over-discharged for lithium batteries, making discharge safety. When going outdoors, the ability to carry only one battery bank/charger and multiple spare batteries is also a space saver. When the battery power of the phone is 97% and the Kindle power is 91%, PB2S significantly reduces the charging current to ensure the safety of charging. Adding 0.5ohm resistance in series with the power supply to simulate a long cable or weak supply shows that the charger will reduce usb and charge current, but the charging works fine. If you’re a vaper who’s concerned about the longevity of their batteries, the PB2S puts you at ease immediately. With its patented battery balancing technology, the charger makes optimum use of the capacity available while charging your batteries.