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

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) The XTAR PB2S Battery Charger is suited for applications where a 18650 battery is required, these applications include torches, laptops, and vaping devices. The PB2S is more eco-friendly. You can use it as a charger for cells and a power bank. You can replace the cells. After inserting the battery and pressing the side button, the display shows "OUT1" as output with a battery charge percentage of 98%. The magnetic lid covers your removable batteries, dust-proof and drop-proof. Built-in ribbon, easy for removing the batteries.

On the top, there is the TYPE-C input/output port and USB output port. There are two advantages of TYPE-C: one is not to distinguish between positive and negative, and the other is to support the greater current intensity of fast charging. This feature, combined with the fact that it has a closed shell, makes the PB2S battery charger almost unique in its kind.

XTAR PB2S Red 2 Bay Charger and Portable Power Supply

Recently I noticed that XTAR, a specialized battery charger manufacturer, has launched an innovative product, PB2S 2-in-1 power bank. It can be used as both power bank and Li-Ion battery charger. As long as there is an ordinary cylindrical lithium battery, it can charge various devices outdoors anytime and anywhere, which is very convenient. Men hvad er TC / CC / CV? Det er en trefaset opladningsproces af Li-ion celler, som holder cellerne i god tilstand, ved kun at oplade med passende strøm i hver fase og afslutte opladningen på det korrekte tidspunkt.

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. During the charging process, the thermocouple thermometer had been connected and the cover of PB2S wasn’t removed. When charging to 65% capacity, the charging power is still close to 15W. At this time, almost reaching the equilibrium state of heating and heat dissipation. Reading the temperature of the two batteries, respectively at 33.1 ℃ and 33.7 ℃. The temperature of the two batteries is close, indicating that the PB2S balanced well in controlling the dual-slot charging. PB2S has three-stage charging (TC-CC-CV). The battery charger uses the float current (TC) to "wake up" and protect the batteries when the battery voltage is very low. After the voltage becomes normal, the charger starts constant current (DC) charging. When the battery is almost fully charged, the charger starts constant voltage (CV) charging, to make sure the battery is fully charged and less damaged. The front-mounted display shows real-time charge/discharge current and voltage, and battery capacity percentage, and supports one-handed button operation to control the charge voltage and current of each battery. The battery channel of the PB2S is perfectly compatible with 18650, 18700, 20700, and 21700 lithium-ion batteries. However, for a protected 21700 cell, it can't fit in PB2S, which is a bit regretful.

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At 12V the output is down to 1.2A, but as can be seen below the output is depend on battery charge state. 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? In the tests I made to recharge batteries in 18650 and 21700 format I obtained good results managing to charge a 3000mAh Sony murata VTC6 18650 battery in about 3 hours (at 1.7A max.) and a 21700 battery in a 4900mAh XTAR in about 3h50min (2A). 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. At present, the highest capacity of the 18650 battery is about 3500mAh and 13Wh, and the 21700 battery is about 5100mAh and 20Wh. After investigation, the rated capacity of power bank allowed to be carried by aircraft does not exceed 100Wh, so the PB2S and four large-capacity 21700 batteries can be carried on the aircraft, and can also guarantee the consumption of many devices for at least one day.

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". 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. For some small electrical devices, PB2S can detect the condition of the internal battery and use a small current to output power for the devices to ensure full-charge and safety. I tried my kindle. 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.Over-Voltage: When the voltage in a circuit or part of it is raised above its upper design limit, this is known as over-voltage. The conditions may be hazardous. Depending on its duration, the over-voltage event can be transient—a voltage spike—or permanent, leading to a power surge. (Source Wikipedia) 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. Compatible with 3.6/3.7V Li-ion IMR/INR/ICR 18650/20700/21700 rechargeable batteries (protected and unprotected)

Intelligent detection and multiple protections ensure safety. High precision, auto cut-off when fully charged. Three-stage charging (TC-CC-CV) makes batteries healthier. 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.Taking into account the error of the instrument, the PB2S's judgment on the charging of different batteries is accurate, and the basic control is within 4.2V of the full charge. The deviation will not be too much.