How to charge an old cell phone battery without a charger?

Do you have an old phone but lost the charger? Here are 3 solutions.

**Method 1 – Universal charger (recommended)**
- Buy it on Amazon or eBay (cost: 5-10 euros)
- It has adjustable contacts and clamps to attach the battery
- Works with Nokia, Samsung, Motorola batteries

**Method 2 – "Clamp" battery charger**
- Similar to method 1 but cheaper (3-5 euros)
- Remove the battery from the phone
- Attach the clamps to the + and - contacts of the battery

**Method 3 – Homemade USB cable (for experts only)**
- Cut a USB cable
- Use the red (+) and black (-) wires
- Place them on the battery contacts
- ⚠️ Risky: can damage the battery

**Conclusion:** Buy a universal charger for 5-10 euros. It is the safest solution and works with all batteries.

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