Li-Ion Battery with Wires, 3.7V, 5000mAh
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 35,99 lei | — |
| 3–4 pcs | 34,19 lei | 5% (−1,80 lei/unit) |
| 5–10 pcs | 32,39 lei | 10% (−3,60 lei/unit) |
| 11+ pcs | 30,59 lei | 15% (−5,40 lei/unit) |
18650 Li-Ion Battery with Wires for DIY Projects and Portable Equipment
This 3.7V 5000mAh rechargeable Li-Ion battery is the ideal solution for powering flashlights, portable projectors, DIY electronic devices, and equipment requiring a compact and efficient power source. 18650 format with pre-soldered connecting wires, ready for direct integration into your circuit.
What you get with this product
- Extended autonomy with 5000mAh capacity — ensures hours of operation for your portable devices
- Pre-soldered connecting wires — eliminates the need for soldering or additional adapters, connects directly to the circuit
- Standard 18650 format — compatible with a wide range of equipment and dedicated holders for this battery type
- Rechargeable for hundreds of cycles — saves money in the long run compared to disposable batteries
- Robust construction with thermal protection — CE and RoHS certified Li-Ion cell for safe use
- Compact and easy to integrate — standard dimensions 18x65mm, ideal for confined spaces
How it works and how to install it
The battery connects directly to the electrical circuit via the pre-soldered red and black wires, observing the correct polarity. Charging is performed exclusively with dedicated Li-Ion chargers with overcharge protection, never with generic chargers that can damage the cell. After installation, the battery provides a stable voltage of 3.7V until complete discharge, at which point it must be reconnected to the charger.
Frequently asked questions
What kind of charger should I use for this battery?
Only special chargers for 18650 Li-Ion batteries, with overcharge protection. Generic or unsuitable chargers will irreversibly damage the cell and void the warranty.
How long does a full charge take?
Depending on the charger, between 4 and 6 hours for a 0% to 100% charge. We recommend smart chargers with automatic shut-off.
Can I connect multiple batteries in series or parallel?
Yes, but it requires knowledge of electronics and proper charge management. For complex configurations, consult a specialist.
Technical specifications
| Battery type | Li-Ion 18650 |
| Nominal voltage | 3.7V |
| Capacity | 5000mAh |
| Diameter | 18mm |
| Length | 65mm |
| Connection type | Pre-soldered red/black wires |
| Certifications | CE, RoHS |
| EAN | 0781499727554 |
Warranty and support
The product benefits from a 24-month warranty according to Romanian legislation, covering manufacturing defects. 30-day return policy. Fast delivery by national courier throughout Romania.
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