The Samsung 30Q is a well-known 18650 cell that combines high capacity with moderate discharge capability. With 3000 mAh capacity and up to 15 A continuous discharge, it is particularly suited for applications where long runtime is more important than extreme current output.
This is an INR Li-ion cell without an internal protection circuit (unprotected). This means safety features must be managed by the device or charger. The nominal voltage is 3.6 V, maximum charge voltage 4.2 V, and the cut-off voltage is around 2.5 V. Dimensions are approximately 18.3 × 65.0 mm and the weight is about 48 g.
Contents
- 1 × Samsung 30Q 18650 battery
Features
- Type: INR / Li-ion 18650
- Capacity: 3000 mAh
- Continuous discharge: 15 A
- Maximum short pulse discharge: up to approx. 20 A
- Nominal voltage: 3.6 V
- Full charge voltage: 4.2 V
- Cut-off voltage: approx. 2.5 V
- Dimensions: ~18.3 × 65.0 mm
- Weight: ~48 g
- Protection: No internal protection circuit (unprotected – requires device/charger with safety features)
- Manufacturer: Samsung SDI
Frequently Asked Questions
How do I charge the Samsung 30Q?
Use a quality Li-ion charger with a CC/CV profile charging up to 4.2 V and monitoring cells individually.
Is this battery safe for mods and e-cigarettes?
Yes, as long as it is used within its specifications and only in devices with proper safety features.
How long does the battery last between charges?
With 3000 mAh capacity, it offers long runtime at moderate usage, but it is not designed for extremely high current drain.
What is the difference between the Samsung 30Q and 25R?
The 30Q offers higher capacity (3000 mAh) but a lower discharge rating (15 A), while the 25R balances capacity with higher current handling.
About Samsung SDI
Samsung SDI is a world-leading manufacturer of lithium-ion batteries, known for delivering high-quality cells that combine performance, safety, and reliability. Their products are used globally in both consumer electronics and industrial applications.
