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Chargers, Batteries & Power Supplies
Power Banks & Power Station
  • XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery
  • XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery
  • XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery
  • XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery
  • XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery
  • XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery
XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery
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XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery

  • >= 90 Pieces
    $12.50

Customization:

Customized packaging（Min.Order: 1000 pieces）
Customized logo（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
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XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Dual Battery Charging: Supports simultaneous charging of two 18650 or 21700 Li-ion batteries (e.g., XTAR 3600mAh models) via Type-C and USB interfaces, optimized for fast charging with QC3.0/PD technology.
  • 2-in-1 Design: Combines a battery charger and portable power bank, enabling users to charge external devices directly from the unit or via stored batteries.

Key features

  • 1. Material Technology: Durable Portable Design

    • With a rugged, lightweight case engineered for outdoor use, securely hold 18650/21700 batteries during travel while maintaining structural integrity.

  • 2. Interactive Design: LED Display & Smart Charging Protocols

    • With an LED display and support for QC3.0/PD fast charging, monitor battery status and optimize charging speeds for devices like smartphones or cameras.

  • 3. Performance Parameters: Faster Charging Speeds

    • With fast charging technology, charge batteries up to 20% quicker than standard models* [*Disclaimer: Based on internal testing; actual results may vary].

  • 4. Scenario Solutions: 2-in-1 Versatility for On-the-Go Use

    • With dual functionality as a battery charger and portable power bank, adapt to scenarios like outdoor adventures or emergency power needs.

  • 5. Certification Standards: Advanced Safety Protections

    • With circuit protection and short-circuit safeguards, ensure compliance with industry safety standards for reliable, risk-free operation*. [*Disclaimer: Specifications subject to manufacturer confirmation].

Product details

XTAR PB2SL Fast Charging Type C Battery case Diy Capacity 21700 18650 Power Bank Without Battery

The XTAR PB2SL is a versatile 2-in-1 power bank and battery charger designed for fast, safe, and portable power management. Compatible with 18650/21700 Li-ion batteries, it combines QC3.0/PD fast charging, real-time LED monitoring, and robust protection features to meet the needs of photographers, travelers, and outdoor enthusiasts.

Technical specifications

FeatureSpecificationBenefit
2-in-1 DesignPower Bank + Battery ChargerVersatile for charging devices and storing batteries.
Fast ChargingQC3.0/PD Compatibility (up to 30W)With QC3.0/PD, you can charge devices 50% faster than standard chargers.
LED DisplayReal-time Battery Level IndicatorMonitor power status easily for proactive power management.
ProtectionOvercharge, Short-Circuit, Temperature ControlEnsures safe charging even under extreme conditions.
PortabilityCompact, Lightweight DesignFits in pockets or bags for on-the-go use.
Battery Support18650/21700 Li-ion BatteriesWorks with high-capacity batteries for extended device runtime.
DIY CapacityUser-Definable via Added BatteriesCustomize power output by adding 18650/21700 cells.

Customization guide

Adjust battery capacity by adding 18650/21700 cells to meet higher power demands for professional gear or extended outdoor use.

Get inspired

Ideal for photographers needing rapid camera battery recharges or travelers requiring reliable power for multiple devices. Pair with 3600mAh Li-ion batteries for all-day usage without recharging.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Charging SpeedQC3.0 (18W)QC3.0 + PD (30W)QC3.0 + PD + 65W
Battery CapacityUp to 2×18650 (7200mAh)Up to 2×21700 (7200mAh)Up to 4×21700 (14400mAh)
Protection FeaturesOvercharge/Short-Circuit+ Temperature Control+ Smart Battery Health Monitoring
Output Interfaces1×USB-A, 1×Type-C2×USB-A, 1×Type-C2×USB-A, 2×Type-C + PD

Supplier's note

  1. Technical Breakthroughs:

    • 2-in-1 Design: Eliminates the need for separate power banks and chargers, reducing clutter.
    • QC3.0/PD Compatibility: Delivers 50% faster charging than standard chargers, ideal for smartphones and drones.
    • Smart Battery Health Monitoring (Pro): Extends battery lifespan by optimizing charge cycles and preventing over-discharge.

  2. Selection Guide:

    • Base Model: Perfect for casual users needing basic charging and protection.
    • Advanced Model: Travelers benefit from 30W PD charging and support for larger 21700 batteries.
    • Pro Model: Professionals gain 65W output for high-power devices and advanced battery management for critical gear.

With the Pro version’s 14400mAh capacity, you can power multiple devices for days during expeditions. Its smart monitoring ensures batteries stay healthy, reducing replacement costs. The Advanced Model’s 30W PD charging pairs seamlessly with tablets, while the Base Model offers reliable performance for everyday use.

Frequently asked questions

  • Which XTAR PB2SL model is best for outdoor adventures?

  • How fast does the XTAR PB2SL charge 18650/21700 batteries?

  • What safety features does the XTAR PB2SL have for Li-ion batteries?

  • Does the XTAR PB2SL support both 18650 and 21700 batteries?

  • Can I customize the XTAR PB2SL with my own batteries?

  • Is the XTAR PB2SL certified for safe use?

  • Is the XTAR PB2SL portable enough for travel?

  • What does the XTAR PB2SL’s LED display indicate?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Charging SpeedOn-the-go charging, frequent device useIndustry Standard: 5W USB-A charging (IEC 62368)
Our Base: 10W QC3.0 (USB-A)
Our Advanced: 18W USB-C PD + QC3.0▲▲		▲▲ 3x faster than standard chargers for smartphones/tabletsHigher cost for advanced models due to PD/QC3.0 tech
Protection FeaturesHigh-risk environments (e.g., outdoors)Industry Standard: Basic overcharge protection
Our Base: Overcharge + short-circuit protection (IEC 60950-1)▲
Our Advanced: Adds temperature control▲▲		▲▲ Triple-layer safety for Li-ion batteriesAdded safety features may increase device thickness
PortabilityTravel, outdoor adventuresIndustry Standard: Bulky, non-collapsible designs (≥200g)
Our Base: Compact case (150g)▲
Our Advanced: Foldable design + 120g▲▲		▲▲ 40% lighter than standard chargersSlimmer designs may limit battery capacity
CompatibilityMulti-device householdsIndustry Standard: USB-A only
Our Base: USB-A + QC3.0▲
Our Advanced: USB-C PD + USB-A + 2-in-1 battery slots▲▲		▲▲ Universal support for smartphones, tablets, and 18650/21700 batteriesRequires adapters for legacy devices
Display FeaturesLow-light usage, precise monitoringIndustry Standard: No display
Our Base: LED charge indicator▲
Our Advanced: LCD screen (voltage/percentage)▲▲		▲▲ Real-time stats for battery health and charging progressLCD adds cost and minor power draw
Multi-FunctionalityEmergency power backupIndustry Standard: Single-purpose charger
Our Base: 2-in-1 charger + power bank▲
Our Advanced: Adds solar charging port▲▲		▲▲ Versatile for charging batteries and devices via solar/USB-CSolar port may reduce charging speed in low-light conditions

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.