The power bank is excellent, I'm satisfied with everything. Charging and discharging are fast. It came as a set and quickly. I recommend the seller. I will order again.
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PD 100W Fast Charging DIY Battery Charger Case for 4x 21700 Cells
Original price was: $81.41.$36.63Current price is: $36.63.
DIY power bank case supports 4pcs 21700 batteries (not included) with 100W PD fast charging and LED power display for real-time monitoring.
1 in stock
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Estimated Delivery Time3–7 business days
Modular DIY Power Bank Case
This DIY power bank case is designed for four 21700 lithium polymer batteries (not included). The batteries must be welded in series to the motherboard’s designated positive and negative terminals before use.
After assembly, connect a power source to activate and charge the power bank through the integrated circuitry. This modular kit offers flexibility for custom battery setups.
High-Powered PD 100W Charging
Supports full protocol two-way 100W Power Delivery fast charging for laptops, phones, and tablets.
- Compatible with PD, QC, AFC, SCP multi-protocol fast charging standards
- Type-C ports deliver up to 20V/5A output for rapid device charging
Durable Build with Real-Time Power Display
The case features a transparent ABS-PVC shell allowing visibility of internal components.
An imported high-quality LED screen provides real-time remaining power monitoring for better battery management.
Universal Compatibility and Safe Travel
Designed to be safe and reliable for air travel without the need to declare the power bank.
Key Specifications
This compact case measures approximately 153 x 55 x 34mm and weighs around 146g.
- Capacity supports 20000mAh with four 21700 batteries
- Input options: DC 5V/3A, 9V/3A, 12V/1.5A, 10V/2.25A
- Output options include Type-C ports and USB with multiple voltage and amperage settings
What's in the box
- DIY power bank case (housing and motherboard)
Discussion
4.5
Based on 19 reviews
The product does not match the description. It started charging from 0 percent at 59W, increased to 2 percent at 45W, and then continued charging at 30W for the rest of the time.
Everything is fine. Complete set. Assembles easily. Great power tool!!!
I couldn't get 100 watts, but it works.
Everything is great. It matches the description. The quality is high. I installed it in a Samsung 50e. It works well, but if it's completely discharged, it heats up while charging and cuts off the charger. I charge it at 60 watts in 3 stages. It charges quickly. I recommend it!
