How to power an arduino nano with a lipo battery with charger?

To power an Arduino Nano with a LiPo battery and charger, you'll need to ensure safe charging, voltage regulation, and protection. Here's a full guide:

What You Need

Common Wiring Setup
Option 1: TP4056 → 5V to Nano
If your TP4056 has a boost converter (or you add one):

text

[LiPo 3.7V Battery]
      |
      v
[TP4056 Charger] → [Boost Converter 3.7V → 5V] → Arduino Nano 5V pin

• Battery → TP4056 (B+ and B−)
• TP4056 OUT+ → Boost IN+
• Boost OUT+ → Nano 5V pin
• This powers the Nano directly with 5V (regulated)

Option 2: Direct to VIN (when safe)
If your LiPo is fully charged (~4.2V), you can power the VIN pin, but note:

• Nano’s regulator requires ≥6V for full 5V output
• LiPo may drop to ~3.3V, causing instability

So VIN is not ideal for single-cell LiPo without boosting.

TP4056 Pinout Reminder:

Boost Converter (if needed)
If you want reliable 5V for your Nano:

• Use a MT3608 boost converter (or similar)
• Input: 3.3V–4.2V
• Output: 5V → connect to Nano 5V pin

USB Charging Support

• Plug USB into TP4056 module to charge battery
• It charges even while Arduino Nano is running

• Charging LED indicators:

• Red = Charging

• Blue = Full

Tips

Summary