Fast charging is available for both the phone and the power bank itself. The main thing is to remember to perform calibration (3 full discharges).
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45W DIY Power Bank Case for 8×18650 Batteries
Original price was: $37.45.$17.98Current price is: $17.98.
DIY power bank case for 8x18650 batteries featuring up to 45W PD fast charging and multiple charging protocols.
- Supports laptop and smartphone fast charging
- Built-in multiple safety protections
- Batteries and cables not included
3 in stock
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Estimated Delivery Time3–7 business days
High-Power DIY Charging Solution
The 45W PD DIY power bank case is designed for custom assembly using eight 3.7V 18650 lithium cells (not included). Its versatile fast-charging support makes it ideal for laptops, smartphones, and other devices.
This case features a maximum 45W output compatible with various fast-charging protocols including PD 3.1, QC3+, SCP, UFCS, SVOOC, VOOC, and more. It is built for high performance and convenience.
Comprehensive Fast Charging Protocols
Equipped with USB-A and Type-C ports, it supports multiple charging standards with varying power levels for different devices:
- PD 45W, PPS 44W for laptops and compatible devices
- SCP up to 40W, UFCS 33W, and VOOC variants for smartphones and non-phone devices
- QC3+ up to 45W and AFC, FCP, SFCP fast charges
- Note: Fast charging is limited to one port at a time, with simultaneous outputs limited to 5V standard charge.
Battery & Calibration Requirements
The case holds eight flat-top 3.7V 18650 ternary lithium cells arranged in 2 parallel and 4 series configuration.
All cells must have matching voltage, capacities, and internal resistance (minimum total real capacity of 16000mAh recommended).
For accurate battery level display, complete at least three full charge-discharge (0–100%) cycles for calibration.
Safety and Protection Features
Built-in protections guard against input overvoltage/undervoltage, output overcurrent/overvoltage, short circuits, battery overcharge, overdischarge, overcurrent, and IC overheating.
Strict adherence to battery installation polarity is required for safe operation. Use only undamaged, grade-A cells.
User Controls and Indicators
The power bank features an LED light controlled by a long press on the button.
A double click on the button cuts off all output power immediately, providing user control over power delivery.
Key Specifications
- Output power: 45W (peak 48W, 3.2A)
- Input power: supports up to 65W PD3.1 maximum
- Battery configuration: 8 x 18650 flat-top cells (2P 4S)
- Working voltage range: 12.3V–16.5V
- Charging & Output ports: USB-A and Type-C supporting multiple fast charge protocols
Package Contents
One DIY 45W Power Bank Case without batteries or charging cables.
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