Xtar

Li-ion Battery Charger + Power Bank 18650 21700 Xtar PB2SL V2 USB C

MPN:
PB2SL-V2
Batteries sold separately:
Yes
  • Li-ion Battery Charger + Power Bank 18650 21700 Xtar PB2SL V2 USB C
  • Li-ion Battery Charger + Power Bank 18650 21700 Xtar PB2SL V2 USB C
  • Li-ion Battery Charger + Power Bank 18650 21700 Xtar PB2SL V2 USB C
  • Li-ion Battery Charger + Power Bank 18650 21700 Xtar PB2SL V2 USB C
  • Li-ion Battery Charger + Power Bank 18650 21700 Xtar PB2SL V2 USB C
$21.99

Description

Need More Power? Swap in Charged Spares.

One compact device handles everyday battery charging and on-the-go power.

The XTAR PB2SL V2 charges your own compatible 18650, 18700, 20700, or 21700 (Protected or Unprotected) Li-ion cells, then turns those same cells into backup power for your USB devices.

Keep it with your battery charger, in your travel bag, or inside your emergency kit.

Your Batteries, Your Capacity Choose your cells, carry charged spares, and refresh the power bank without replacing the device.
Up to 2A Per Bay Recharge one or two compatible Li-ion cells with a suitable power source.
Up to 22.5W Output Power compatible devices through USB-C or USB-A with broad fast-charging support.

📦 What's Included

  • XTAR PB2SL V2 charger and power bank
  • USB-A to USB-C cable
  • User manual

Batteries are not included. An optional XTAR 18W QC3.0 wall adapter is available above the Add to Cart button.

🔋 Choose Your Battery Setup

Choose 21700 cells for longer runtime or 18650 cells for a lighter battery setup. For the best performance, install two matching cells with similar charge levels.

Orbtronic 21700 5550mAh Protected

The higher-capacity choice for a longer-running PB2SL V2 setup.

View 5550mAh 21700 >
Orbtronic 21700 5000mAh Protected

A high-drain 21700 option for compatible flashlights and power-bank use.

View 5000mAh 21700 >
Orbtronic 18650 3950mAh Protected

A high-capacity 18650 choice for compatible flashlights and lighter cell setups.

View 3950mAh 18650 >

⚡ Fast Charging In. Useful Power Out.

The PB2SL V2 supports PD3.0, QC4+, PPS, AFC, SCP, and additional charging protocols, with USB output up to 22.5W from one active port.

  • Charge one or two compatible batteries at up to 2A per bay
  • Power devices through USB-C or USB-A
  • Charge two devices simultaneously when needed
  • Check battery percentage, voltage, current, and per-slot information on the LED display
Using both output ports? USB-A and USB-C can power two devices together, but dual-port output is fixed at 5V with up to 18W total shared between them.

📱 Built for Small Devices Too

Some earbuds, smartwatches, and fitness bands draw too little current for standard power banks. Double-press the PB2SL V2 button while the screen is on to activate Low-Current Mode. The LC indicator confirms that it is active, and output can continue for up to two hours.

↻ What's New in the V2?

  • Insert the battery or connect the adapter in either order
  • Expanded fast-charging protocol support and up to 22.5W output
  • Easier double-press Low-Current Mode with visible battery status
  • Per-slot voltage and current information with a 10-second refresh rate
  • Single-cell 5V charging and dual-cell charging after balancing

⚙ Smarter Charging

  • Smart Energy Balance manages voltage differences between cells
  • Trickle, constant-current, and constant-voltage charging stages
  • Low-voltage activation for some deeply discharged cells
  • Automatic full-charge cutoff and soft-start behavior

🛡 Built-In Protection

  • Reverse polarity protection
  • Over-current protection
  • Over-charge and over-voltage protection
  • Short-circuit protection

🌍 Ready for Everyday Carry

The magnetic cover helps keep batteries secure. A removable locking spacer accommodates compatible flat-top cells, a rotating retainer holds 18650 batteries firmly, and the built-in pull ribbon makes removal easier.

Durable metal contacts and an 85g product-only weight make the PB2SL V2 easy to keep in a bag, glove box, or emergency kit.

📊 Specifications

Specification XTAR PB2SL V2
Compatible batteries Protected and unprotected 3.6V/3.7V Li-ion, IMR, INR, and ICR cells
Supported sizes 18650, 18700, 20700, 21700
Charging bays 2
USB-C input PD3.0 and QC3.0: 5V 3A / 9V 2A
Charging current Up to 2A x 2, 2A x 1, or 1A x 2
USB-A output 5V 3A / 9V 2A / 12V 1.5A
USB-C output 5V 3A / 9V 2A / 12V 1.5A; SCP 5V 4.5A
Maximum USB output Up to 22.5W with one active port
Dual-port output Fixed 5V with up to 18W total shared
Charging cutoff voltage 4.2V ± 0.05V
Operating temperature 0-40°C
Dimensions 125 x 58 x 28mm
Net weight 85g without batteries

❓ Common Questions

Does it support protected 21700 and 18650 batteries?

Yes. The PB2SL V2 supports protected and unprotected 18650, 18700, 20700, and 21700 Li-ion cells.

Can I use just one battery?

Yes. It can charge one battery at up to 2A and provide USB output with one cell installed. Single-cell operation uses 5V charging and output behavior.

Can both USB ports fast-charge at the same time?

Both ports can supply power simultaneously, but not in fast-charge mode. Dual-port output is fixed at 5V with up to 18W total shared.

How do I activate Low-Current Mode?

With batteries installed and the screen on, double-press the button. The LC indicator confirms that the mode is active.

Are batteries included?

No. The package includes the PB2SL V2, a USB-A to USB-C cable, and a user manual. Add compatible Orbtronic batteries to complete your setup.

Is a wall adapter available?

Yes. An optional XTAR 18W QC3.0 wall adapter is available above the Add to Cart button.

Orbtronic is an authorized XTAR dealer.
Authentic XTAR product with knowledgeable product support.

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