ET-P09
LiPo Power Bank Module
USB-C charger plus 5 V 1 A boost
AED 49.00
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Overview
USB-C charger plus 5 V 1 A boost
The ET-P09 is built around the Charge a 1S LiPo from USB-C and get 5V out at the same time (PowerBoost-style).
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- Portable 5 V projects
- Mini UPS for Raspberry Pi Zero
- Battery-powered gadgets
Key features
What makes it different
Function
Charge a 1S LiPo from USB-C and get 5V out at the same time (PowerBoost-style)
Charge
500mA, 4.2V
Output
5.06V, ~1A at 3.6V cell
Open documentation
Schematic, BOM and layout notes published for every board.
Breadboard friendly
Standard 2.54 mm pitch and M2.5 mounting holes.
Specifications
Technical specifications
| Function | Charge a 1S LiPo from USB-C and get 5V out at the same time (PowerBoost-style) |
|---|---|
| Charge | 500mA, 4.2V |
| Output | 5.06V, ~1A at 3.6V cell |
| Size | 25.4 × 25.4 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 4-pin 2.54 mm header · USB-C 16P receptacle (USB 2.0) — USB-C power input · JST PH 2P R/A SMD (LiPo) — LiPo |
| Main IC | MCP73831T-2ACI/OT (LCSC C424093) |
| Revision | Rev A |
Performance
Currents
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VBAT | Power | Battery + |
| 2 | GND | Ground | Ground |
| 3 | EN | Control | Low = 5V off |
| 4 | 5V | Power | 1A |
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-P09 LiPo Power Bank Module (assembled)
- 1 × 4-pin 2.54 mm male header, unsoldered
Getting started
- Wire the header: VBAT, GND, EN, 5V
Compare
Which battery board?
| LiPo Power Bank Module (this board)This board | ET-P01 MCP73831 USB-C LiPo Charger | ET-P02 BQ24074 Solar / USB-C Charger | ET-P08 1S LiPo Protection Board | |
|---|---|---|---|---|
| What it does | USB-C charger plus 5 V 1 A boost | 500 mA / 100 mA single-cell LiPo charger, USB-C | Solar and USB-C LiPo charger with power path | Over-charge, over-discharge and short protection, 4 A |
| Interface | — | USB-C 5V (Rd 5.1k → any USB-C source gives 5V);… | USB-C 5V and 2-pin terminal 5–10V (6V solar… | — |
| Best for | Portable 5 V projects | Charging LiPo cells for wearables | Solar-powered sensor nodes | Protecting bare 18650 and LiPo cells |
| Price | 49 AED | 22 AED | 49 AED | 9 AED |
Downloads
Documents and design files
Need a custom version of this board?
Different connector, size or sensor? We design and build custom variants.