XTAR SC2 Charger for Lithium-Ion Batteries

The XTAR SC2 is a compact USB charger with two slots, designed for 3.7V lithium-ion batteries in the 18650, 20700, 21700, and 26650 sizes. It also supports protected versions of 20700 and 21700 batteries.

The device is not compatible with batteries smaller than 18650 and is not recommended for cells with a capacity of less than 2000 mAh. It does not charge batteries of a different chemical type other than the specified lithium-ion formats.

Maximum charging current

Up to 3A per port when using a QC3.0 adapter (9V/2A or 12V/1.5A) — with a single battery
Up to 2A per port when charging two batteries simultaneously with a QC 3.0 adapter
If the battery's internal resistance is high, the charger automatically reduces the current to 2A for safer charging
Up to 2A with a standard USB adapter with a minimum output of 2.1A
It also works with lower-wattage adapters, but charging is slower

Protective Features of the XTAR SC2

Protection Against Reverse Battery Installation
A feature for reviving completely drained batteries, when technically feasible

Specifications	Value
Brand	XTAR
Model	SC2
Category	Battery Charger
Number of slots	2
Compatible battery sizes	18650, 20700, 21700, 26650
Battery Type	Lithium-ion 3.7V
Supports protected batteries	Yes (20,700, 21,700)
Maximum charging current	3A (with a QC 3.0 adapter, one slot)
Standard charging current	2A
QC3.0 Compatibility	Yes (9V/2A or 12V/1.5A)
Minimum Recommended Capacity	2000 mAh
Reverse Insertion Protection	Yes
Reviving Depleted Batteries	Yes

Frequently Asked Questions

What types of batteries can the XTAR SC2 charge?

The XTAR SC2 charges 3.7V lithium-ion batteries in the 18650, 20700, 21700, and 26650 sizes. It also supports protected versions of the 20700 and 21700. The device is not intended for batteries smaller than the 18650 format and is not recommended for cells with a capacity below 2000 mAh. It cannot charge any other types of batteries.

How many amps does the XTAR SC2 deliver when used with a QC 3.0 adapter?

When using a QC3.0-compatible adapter (9V/2A or 12V/1.5A), the charger can charge a single battery at up to 3A. When charging two batteries simultaneously, the current is up to 2A per slot. If a battery has high internal resistance, the charger automatically reduces the current to 2A to protect the cell.

Do I need a special adapter for the XTAR SC2?

A QC3.0-compatible adapter is required for the maximum charging speed of 3A. For standard 2A charging, a USB adapter with a minimum output of 2.1A is sufficient. The charger also works with lower-output adapters, but the charging process will be slower.

Does the XTAR SC2 charger have any protective features?

Yes. The XTAR SC2 features reverse battery insertion protection, which prevents damage caused by incorrect charging. In addition, the device has a function to revive completely discharged batteries when technically possible. It automatically adjusts the current when the battery has high internal resistance.

Can the XTAR SC2 charge two batteries at the same time?

Yes, the XTAR SC2 has two independent slots and can charge two batteries at the same time. With a QC3.0 adapter, the charging current for two batteries is up to 2A per slot. With a standard adapter, the charger also works with two slots, but at a lower current.

Is the XTAR SC2 suitable for low-capacity batteries?

No. The XTAR SC2 is not designed for batteries with a capacity of less than 2000 mAh and does not support formats smaller than 18650. Using incompatible batteries may result in improper charging or the device failing to start the charging process.

Where can I buy the XTAR SC2 in Bulgaria?

The XTAR SC2 charger is available at the Dulotec.COM online store, which specializes in high-quality outdoor equipment, flashlights, batteries, and tactical accessories. Ordering is easy online, with delivery to any address within the country.

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SKU: d-02-08-387 Categories: Batteries, Chargers, Lithium battery charger, Rechargeable battery charger

Description

Specifications	Value
Brand	XTAR
Model	SC2
Category	Battery Charger
Number of slots	2
Compatible battery sizes	18650, 20700, 21700, 26650
Battery Type	Lithium-ion 3.7V
Supports protected batteries	Yes (20,700, 21,700)
Maximum charging current	3A (with a QC 3.0 adapter, one slot)
Standard charging current	2A
QC3.0 Compatibility	Yes (9V/2A or 12V/1.5A)
Minimum Recommended Capacity	2000 mAh
Reverse Insertion Protection	Yes
Reviving Depleted Batteries	Yes

Additional information

Weight	0,1 kg

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About brand

Founded in 2006, Xtar is a leading high-tech company. It specializes in the research, development, manufacturing, and sale of lithium-ion batteries, chargers, LED flashlights, and other electronic devices. XTAR provides smart, fast charging and extends battery life. With a reputation for safety, reliability, and innovation, the company stands out among battery and charger manufacturers. As a globally recognized brand, XTAR provides customized, high-quality battery and charging solutions. Choose XTAR for cutting-edge technology and exceptional quality.