Rechargeable Li‑Ion Battery ANSMANN 18650 3.6V 2550mAh with Cable (1S1P) Blue

ANSMANN 18650 3.6V 2550mAh rechargeable Li‑Ion cell in a 1S1P configuration supplied with an attached cable for direct connection. This cylindrical blue battery offers a nominal voltage of 3.6 V and a capacity of 2550 mAh, designed for use as a single 18650 cell in portable electronics, flashlights, DIY projects and as a replacement for compatible battery packs that require one 18650 cell. The attached cable simplifies installation where a soldered or wired connection is needed without additional holders.

Advantages

The ANSMANN 18650 battery delivers a balance of energy density and compact size suitable for devices that accept a single 18650 cell. Supplied with a factory-attached cable, it reduces the need for soldering or additional connectors and speeds up replacement or integration into custom assemblies. The Li‑Ion chemistry provides a relatively low self-discharge rate and consistent voltage under moderate loads, making it practical for a range of portable applications.

Suitable for

• Portable flashlights and headlamps designed for 18650 cells
• DIY electronics, hobby projects and single-cell battery modules
• Replacement of a worn or damaged single 18650 cell in compatible battery packs
• Small power banks and handheld devices that accept a single 18650 cell

When it may not be suitable

This single-cell 1S1P battery is not suitable for devices that require higher nominal voltage or multiple cells in series. It may not be appropriate for applications that demand very high continuous discharge currents beyond typical 18650 cell limits or for devices that require integrated protection circuits; those devices may need protected cells or full battery packs with dedicated electronics.

Key specifications

• Cell chemistry: Lithium‑ion (Li‑Ion)
• Nominal voltage: 3.6 V
• Capacity: 2550 mAh
• Configuration: single cell (1S1P)
• Form factor: 18650 cylindrical cell
• Color: blue
• Connection: attached cable for direct wiring

How to use

Install the ANSMANN 18650 cell in the device or holder that accepts an 18650 form factor, ensuring correct polarity. Use the attached cable to connect to the device's power input or to your project wiring, securing connections mechanically and electrically before powering on. Charge the cell with a charger compatible with 3.6–3.7 V nominal Li‑Ion cells and follow the charger's instructions; do not attempt to charge the cell with an incompatible charger. Observe standard Li‑Ion handling precautions such as avoiding short circuits, physical damage, or exposure to extreme temperatures.

What to consider before purchase

• Verify device compatibility with a single 18650 cell and 3.6 V nominal voltage
• Confirm whether a protected cell or full battery pack with protection circuitry is required
• Ensure the attached cable length and connector type meet your installation needs
• Check the device's maximum allowable continuous discharge current against the cell's capabilities

Usage recommendations

Use a dedicated Li‑Ion charger and avoid deep discharges below the manufacturer's recommended cutoff. For devices without internal protection, consider adding external protection or using a protected cell. Store the battery at moderate charge (around 30–50%) if unused for long periods and keep it away from heat sources and moisture.