Cellhelmet Power Banks

$49.99

2 in stock

Power Bank: 20,000mAh - 1 Type A / 1 Type C

20,000mAh - 1 Type A / 2 Type C 20,000mAh - 1 Type A / 1 Type C 20000mAh Fast Charging - 2 USB-C / 2 USB-A

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🔋 Cellhelmet Power Banks

The Cellhelmet Power Bank is a portable, high-capacity charging solution designed to keep your devices powered up wherever life takes you. Whether you're traveling, commuting, or just need backup power during a busy day, this power bank offers fast, reliable charging on the go.

Equipped with USB and/or USB-C outputs (varies by model), it’s compatible with a wide range of smartphones, tablets, headphones, and other USB-powered devices. Compact and easy to carry, it’s the perfect companion for daily life or emergency backup power.

✅ Lifetime Warranty: All Cellhelmet power accessories are backed by a lifetime warranty. If you experience any issues, please contact the manufacturer directly and review our warranty policy here:
https://strictli.store/pages/warranty-policy

Strictli Certified: Why Buy From Us?

Buying used tech shouldn't be a gamble. Every device we sell goes through our rigorous PhoneCheck Certification process to ensure it performs like new.

60+ Point Inspection: We verify FaceID/Biometrics, battery health, microphones, and speakers.
Deep Cleaned: Sanitized and polished before packaging for a premium feel.
Data Wiped: Guaranteed 100% data erasure for your absolute privacy.
Ready to Activate: Simple set up that allows you to activate your device and go.
Plug in your tech: Delivered with a Strictli Complimentary charger and cable.

What is the Condition of the Device?

Our Condition Guide

Clearance

Clearance: Our most affordable option. May have parts replaced, scratches, small dents, or sticker stains. Fully functional, fully unlocked, and if applicable, unlocked for any carrier worldwide. Comes with a complimentary charger and a 1-year hardware (non-accidental) warranty.

Used

Used: May have minimal wear but in normal used condition. Could include small scratches or scuffs around the edges and light wear on the screen. Fully functional, fully unlocked, and if applicable, unlocked for any carrier worldwide. Comes with a complimentary charger and a 1-year hardware (non-accidental) warranty.

Open Box

Open Box: Our best condition — mint, with little to no wear. Like new, fully unlocked, and if applicable, unlocked for any carrier worldwide. Comes with a complimentary charger and a 1-year hardware (non-accidental) warranty.

Brand New Sealed

Brand New Sealed: Factory sealed in original Apple packaging. Never used, fully unlocked, and if applicable, unlocked for any carrier worldwide. Comes with a complimentary charger and a 1-year hardware (non-accidental) warranty.

What's included with this item?

The Strictli Guarantee

Every device from Strictli comes fully unlocked and ready to work with any carrier.
Each one includes a complimentary compatible charging cable and wall block.
Along with a 1-year hardware guarantee for peace of mind.

What is the Strictli Warranty?

Our 1-Year Guarantee

Every Strictli Certified Pre-Owned device comes with a 1-Year Limited Warranty covering all non-accidental hardware and functional issues.

If your device experiences a defect that is not caused by physical damage, water damage, or misuse, we will repair or replace it at no extra cost during the warranty period.

View our full expanded warranty policy →

How Fast Will my order ship?

Strictli Shipping Promise

Same-Day Shipping: If you place your order before 1 PM EST, it will ship the same day!
Next-Day Shipping: Orders placed after 1 PM EST will ship the next business day.
Fast Delivery: All Strictli shipments are sent via UPS, so you’ll receive your item within 5 days!

I Can't Find What I am Looking For!

Strictli Different: We’re Here to Help

We understand that tech can sometimes be hard to find or simply confusing — and that’s where we’re Strictli Different.

If you have questions about a device or can’t find what you’re looking for on our site, we encourage you to reach out to us at support@strictli.tech or give us a call Monday through Friday at 614.944.8073.

We help customers every day place custom orders for devices not listed online — it’s just one of the ways we make sure you get exactly what you’re looking for.