18650 2600mAh 3.7V Li-ion Rechargeable Battery Cell
Product Overview
The 18650 2600mAh 3.7V Li-ion Rechargeable Battery Cell is a cylindrical lithium-ion cell with a 2600mAh rated capacity and 5C discharge rating. Weighing approximately 42g, it is designed for compatible rechargeable electronics, DIY projects and custom battery packs.
Description
The 18650 2600mAh 3.7V Li-ion Rechargeable Battery Cell is designed for rechargeable electronics and battery-powered projects requiring the widely used 18650 cylindrical cell format.
It provides a 3.7V nominal voltage with a 2600mAh rated capacity. The cell has a stated 5C discharge rating, corresponding to 13A based on its rated capacity. Its cylindrical body measures approximately 18.3–18.4mm in diameter and 65.0–65.2mm in height, while the actual stock cell weighs approximately 42g.
This rechargeable 18650 battery can be used in compatible portable electronics, DIY power systems and custom battery assemblies where its electrical characteristics meet the requirements of the application.
For charging, an appropriate Li-ion CC-CV charging system with a 4.2V charge cut-off should be used. When incorporating the cell into a battery pack or higher-current application, suitable protection and battery-management circuitry should be selected for the intended configuration.
Key Features
- Rechargeable Li-ion 18650 cell for compatible battery-powered applications
- 2600mAh rated capacity for rechargeable energy storage
- 5C discharge rating for applications requiring higher current delivery
- Standard cylindrical 18650 form factor for compatible battery holders and assemblies
- Suitable for DIY electronics, portable power projects and custom battery packs
- Supports recharging with an appropriate Li-ion CC-CV charging system
- Clearly marked positive and negative polarity
- Compact cell format suitable for space-conscious electronics projects
Technical Specifications
| Specification | Details |
|---|---|
| Cell Format | 18650 |
| Battery Chemistry | Lithium-ion (Li-ion) |
| Nominal Voltage | 3.7V |
| Rated Capacity | 2600mAh |
| Discharge Rating | 5C |
| 5C Current Equivalent | 13A |
| Charge Cut-off Voltage | 4.2V |
| Charging Method | CC-CV |
| Diameter | 18.3–18.4mm |
| Height | 65.0–65.2mm |
| Weight | Approx. 42g |
| Cell Shape | Cylindrical |
| Rechargeable | Yes |
| Polarity | Positive (+) / Negative (−) |
Discharge note: For a 2600mAh cell, 1C corresponds to 2.6A; therefore, a 5C rating corresponds to 13A. Since the supplied information does not establish whether 5C is a continuous or pulse rating, the listing should not describe 13A as the maximum continuous discharge current.
Capacity note: 2600mAh is the rated/marked capacity of the cell and should not be presented as independently tested capacity unless Chip.pk performs and documents a capacity test.
Applications
- DIY rechargeable electronics projects
- Custom 18650 battery assemblies
- Portable electronic projects
- LED and rechargeable lighting projects
- Robotics and embedded electronics
- Prototyping and development projects
- Custom rechargeable power systems
Compatibility
Compatible with suitable 18650 battery holders, Li-ion charging circuits, battery packs and electronic systems designed for cells with matching electrical characteristics.
For charging, use an appropriate lithium-ion charger with a CC-CV charging profile and 4.2V charge cut-off.
For multi-cell battery packs, an appropriate BMS/protection system should be selected according to the series/parallel configuration and application requirements.
Compatibility with a particular device should not be assumed solely because it accepts an 18650-size cell. Voltage, discharge requirements, physical fit and protection requirements should also be checked.
Package Contents
1 × 18650 2600mAh 3.7V Li-ion Rechargeable Battery Cell
FAQs
1.What is an 18650 battery?
An 18650 battery is a cylindrical rechargeable cell format commonly used in compatible battery-powered electronics and custom battery assemblies. This Chip.pk cell uses Li-ion chemistry, has a 3.7V nominal voltage, and is rated at 2600mAh.
2.What is the capacity of this 18650 battery?
The cell has a rated/marked capacity of 2600mAh. This is the product's rated capacity and should not be interpreted as an independently tested Chip.pk capacity measurement.
3.What does the 5C discharge rating mean?
C-rate expresses current relative to battery capacity. For a 2600mAh (2.6Ah) cell, 1C corresponds to 2.6A, so 5C corresponds to 13A. The available product information does not establish whether the stated 5C rating is continuous or pulse.
4.What voltage is this 18650 Li-ion battery?
The cell has a 3.7V nominal voltage. Its specified charge cut-off voltage is 4.2V.
5.How should this 18650 battery be charged?
Use an appropriate Li-ion charger with a CC-CV charging profile and 4.2V charge cut-off. The recommended charging current for this specific cell has not been verified, so a particular charging-current value should not be assumed.
6.What are the dimensions of this 18650 cell?
The specified diameter is approximately 18.3–18.4mm, while its height is approximately 65.0–65.2mm.
7.How much does this 18650 battery weigh?
The actual stock cell weighs approximately 42 grams.
8.Does this 18650 battery have built-in protection?
A built-in protection circuit has not been verified for this cell. Where protection is required, use an appropriate external protection/BMS solution according to the battery configuration and application.
9.Can this 18650 cell be used to make a battery pack?
It can be considered for compatible battery assemblies, but the pack must be designed according to the required voltage, current, series/parallel configuration, cell matching, charging and protection requirements.