Power Banks

Power bank are popular for charging smartphonesmobile tablet devices, and other USB charged devices. They can also be used as a power supply for various USB powered devices such as lights and small fans. A powerbank is a portable device that can supply power from its built-in batteries through a USB port. They usually recharge with USB power supply. Technically, a powerbank consists of rechargeable Lithium-ion or Lithium-Polymer batteries installed in a protective casing, guided by a printed circuit board (PCB)which provides various protective and safety measures. Because a lithium ion battery operates at 3.7V nominal, voltage conversion circuitry is needed to drop the 5V USB input and raise the output back up to 5V.

CHOETECH technology brand provides compatibility interface for Micro USB, Mini USB, USB-C, lightning, etc., large storage, high quality power bank.

CHOETECH [Apple MFI Certified] Apple Watch Portable Charger 900mAh Wireless Apple Watch Power Bank CHOETECH OFFICIAL
CHOETECH [Apple MFI Certified] Apple Watch Portable Charger 900mAh Wireless Apple Watch Power Bank CHOETECH OFFICIAL
$48.09

T313 900mAh Wireless Apple Watch Power Bank

Product Description 【MFI Certified】 Approved by MFI (PPID 211915-0192), the iWatch charger could be safely used for most Apple Watch versions, incl...

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$48.09
CHOETECH Portable Charger 26800mAh 100W PD 3.0 USB-C Power Bank  B634 CHOETECH
CHOETECH Portable Charger 26800mAh 100W PD 3.0 USB-C Power Bank  B634 CHOETECH
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$89.99
$79.99

CHOETECH Portable Charger 26800mAh 100W PD 3.0 USB-C Power Bank B634

Power Delivery 100W Fast Charger: Ideal charging station for USB-C powered laptop, with 100W USB-C output port, it can quick charge MacBook Pro 16’...

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$89.99
$79.99
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