5 Slot 21700 Battery Power Bank Shell with LCD Display

4.5 Β· 2 reviews
Price range: $4.94 through $5.05

DIY power bank shell holds 5x 21700 batteries with LCD display. Dual USB output (5V/2.1A and 5V/2A). Built-in battery protection for safe charging and use.

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Estimated Delivery Time3–7 business days

Compact DIY Power Bank Shell

This power bank shell fits five 21700 lithium-ion batteries (not included), allowing you to create a high-capacity portable charger. The LCD display shows real-time battery status, making charging management straightforward.

Designed with lightweight plastic and available in four colorsβ€”Black, White, Blue, and Greenβ€”it's handy for outdoor activities and travel.

Advanced Battery Protection Circuit

Equipped with a built-in protection circuit, this shell safeguards your batteries from overvoltage, overcurrent, and undervoltage. This ensures safety during charging and discharging cycles, preserving battery health for long-term use.

  • Overvoltage protection
  • Overcurrent protection
  • Undervoltage protection

Dual USB Output Ports

Deliver power conveniently with two USB outputs: one rated at 5V/2.1A and another at 5V/2A. This setup supports charging multiple devices efficiently, enhancing versatility.

  • Dual port output: 5V/2.1A and 5V/2A
  • Supports simultaneous device charging

Key specifications

  • Material: Plastic
  • Battery capacity: Holds 5x 21700 batteries (not included)
  • Color options: Black, White, Blue, Green
  • Dual USB output: 5V 2.1A and 5V 2A
  • Dimensions: Approximately 20cm x 10cm x 5cm

What's in the box

  • 1 x 5 slot 21700 battery power bank shell (battery not included)
Categories
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Weightβ€”
AvailabilityIn stock
SKUGA_103387

Discussion

4.5
Based on 2 reviews
Rating
Π―***Ρ‡ April 26, 2026 β˜… β˜… β˜… β˜… β˜…

Corresponds to the description.

Π‘***Ρ‡ September 19, 2025 β˜… β˜… β˜… β˜… β˜…

Installed 5 Litokala units, charges from zero in 6.5 hours.
It outputs a maximum of 13 Watts to two ports.

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