KA8 power bank case for 8 18650 batteries (PD, QC) — is a powerful platform for creating your own large-capacity Power Bank with support for modern fast charging protocols. Allows you to install up to 8 18650 batteries, which provides long battery life and high output power up to 22.5W.
The ideal solution for backup power for smartphones, tablets, routers, FPV equipment, cameras, USB devices and other electronics during travel or power outages.
⚙ Working principle
After installing 18650 batteries, the built-in controller:
- 🔋 stores energy in batteries via Type-C or Micro-USB
- ⚡ converts battery voltage into stable 5V / 9V / 12V
- 🧠 automatically detects fast charging protocol
- 🔌 provides simultaneous charging of two devices
- 🛡 protects against short circuit, overload and overheating
⚡ Main advantages
- ✔ Holds 8 18650 batteries
- ✔ High charging power — up to 22.5W
- ✔ Support fast charging PD3.0, QC3.0, QC4+
- ✔ 2 USB outputs for simultaneous charging
- ✔ Type-C and Micro-USB
- ✔ LED charge level indicator
- ✔ Intelligent control board
- ✔ Compact and durable body
- ✔ Ideal for creating a large-capacity Power Bank
📱 Support fast charging protocols
- ⚡ PD3.0 / PD2.0
- ⚡ QC4+ / QC4 / QC3.0 / QC2.0
- ⚡ PPS
- ⚡ AFC
- ⚡ FCP
- ⚡ SCP
- ⚡ PE2.0 / PE1.1
- ⚡ SFCP
- ⚡ Low Voltage Direct Charging
🔋 What can be used for
- 📱 smartphones
- 📟 tablets
- 📡 Wi-Fi routers
- 🚁 FPV equipment
- 📷 cameras and video surveillance
- 🎮 portable consoles
- 💡 USB lighting
- 🏕 camping and travel
- 🔌 backup power
📊 Technical specifications
| Model | KA8 |
| Battery type | 18650 Li-ion |
| Number of batteries | 8 |
| Maximum power | 22.5W |
| Input | Type-C, Micro-USB |
| Output | 2 × USB |
| Output voltage | 5V4.5A / 4.5V5A / 9V2A / 12V1.5A |
| Protocols | PD, QC, PPS, AFC, SCP, FCP, PE, SFCP |
| Dimensions | 198 × 77 × 23 mm |
| Material | ABS plastic |
| Indication | LED display |
| Protection | Short circuit, overload, overheating |
📦 Package contents
- ✔ KA8 power bank case
- ✔ Control board
⚠ 18650 batteries are not included
KA8 Power Bank Case — This is the perfect solution for creating a powerful, large-capacity power bank with support for fast charging up to 22.5W.
The KA8 8-cell 18650 battery power bank case from WST store is your perfect choice. Order it now and enjoy flawless charging for your device anytime, anywhere 🔋
Tags: power bank KA8, 18650 battery, portable charger, charging for devices, USB, Micro-USB, Type-C, QC3.0 22, 5W




