# Set of 2 Li-Ion Battery, 18650, 3.7V, 3000mAh, 3C

> Set of 2 Li-Ion 18650 batteries, 3.7V, 3000mAh each, discharge rate 3C (max. 9A), charge rate 0.5C (max. 1.5A). Charge voltage 4.2VDC, discharge voltage 3.0VDC, internal resistance 14mOhm. Flat top, no integrated protection circuit. Dimensions 65 x 18mm, weight 46.25g per battery. Includes plastic case for transport and storage.

- Page: https://sigmanortec.ro/en/set-of-2-li-ion-battery-18650-37v-3000mah-3c
- Price: 46.90 RON
- Availability: Out of stock
- Reference: 44001 · EAN: 5944750150798
- Category: Electronic components > Battery
- Specifications: Technology: Lithium Ion; Output Voltage: 3.7 V
- Package (shipping data): 0.105 kg
- Updated: 2026-04-07
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:45 (Europe/Bucharest)

## Description

Set of 2 Li-Ion 18650 batteries for flashlights, backup systems and portable devices, 3.7V and 3000mAh each for high autonomy, 3C discharge up to 9A for moderate consumption, flat head for assembly into packages by spot welding. Includes plastic box for safe transport and storage.
Set containing two 18650 type Li-Ion batteries, each with a nominal voltage of 3.7V and a generous individual capacity of 3000mAh. With a discharge rating of 3C, these batteries are suitable for equipment that requires a moderate discharge current, such as flashlights, backup systems and many other portable devices.
The discharge rate in "C" is a standardized way of indicating the speed at which a battery can be safely discharged without affecting its performance or lifespan. The "C" value is related to the nominal capacity of the battery. The discharge rate is 3C (3 x 3000mAh capacity = 9A maximum discharge current). The indicated charge rate, also expressed in "C", is 0.5C (0.5 x 3000mAh = 1.5A).
The battery has a flat head, suitable for making battery packs by spot welding and weighs 46.25 grams.
The set is delivered with a plastic storage box, designed to protect the batteries against mechanical shock and short circuits during transport or storage.
Specifications:
Battery type: Lithium Ion
Format: 18650
Nominal voltage: 3.7V
Charging voltage: 4.2VDC
Discharge voltage: 3.0VDC
Internal resistance: 14mΩ
Capacity: 3000mAh
Discharge rate: 3C (max. 9A)
Charging current: 0.5C (max. 1.5A)
Protection: Without integrated protection circuit (use with devices that have protection is recommended)
Weight: 46.25g (per battery), 104.88g total 2 batteries and case
Dimensions mm: 65 x 18mm
Use:
Use a compatible charger for Li-Ion 18650. Do not overcharge or leave unattended while charging.
Store batteries in the included protective case in a cool, dry place. Avoid extreme temperatures.
Check compatibility with your device before use. Do not mix new and old batteries or batteries of different capacities.
Do not puncture, short-circuit or dispose of in fire. Replace batteries if you notice any deformation or leakage.