Rechargeable Battery Pack ANSMANN 1S3P — 3× 18650 Li‑Ion, 3.6V, 7800mAh

The ANSMANN Rechargeable Battery Pack 1S3P combines three 18650 Li‑Ion cells in a single‑cell voltage arrangement, delivering a nominal voltage of 3.6V and a total capacity of 7800mAh. The pack is intended for applications where a standard single‑cell voltage is required but extended runtime is needed compared with a single 18650 cell. The standardized 18650 format and Li‑Ion chemistry offer compact energy density and a familiar form factor for maintenance and replacement.

Advantages

This rechargeable battery pack provides high usable capacity in a compact housing while keeping the nominal voltage at 3.6V, simplifying integration into devices designed for a single Li‑Ion cell. The 1S3P configuration increases runtime without raising voltage, and the use of protected Li‑Ion cells improves operational safety compared with unprotected cells. Its standardized cell format supports easier sourcing of replacement cells and compatibility with common holders and assemblies used in portable electronics and lighting.

Suitable for

• Portable electronics requiring 3.6V single‑cell voltage with extended runtime
• LED lighting and portable illumination devices
• Backup power for small electronics and memory retention circuits
• DIY electronics, hobbyist projects and custom assemblies

Key specifications

• Configuration: 1S3P (three cells in parallel, single series)
• Cell type: 18650 Li‑Ion
• Nominal voltage: 3.6V
• Capacity: 7800mAh (total pack capacity)
• Chemistry: Lithium‑ion
• Intended use: Rechargeable power source for portable devices

How to use

Charge the battery pack with a compatible Li‑Ion charger that supports single‑cell nominal voltage and observe the charger's recommended charging current for the pack capacity. Install the pack in the device ensuring correct polarity and secure mechanical mounting. Monitor pack temperature during initial use; do not expose to direct heat or open flame. Follow the device manufacturer's instructions for battery installation and removal to prevent damage or incorrect connection.

Usage recommendations

Store the pack at moderate state of charge (about 40–60%) for long‑term storage, avoid deep discharge where possible, and use a charger with proper cut‑off and cell‑appropriate charging profile. Replace cells or the pack if you observe significant capacity loss, swelling, leakage, or abnormal heating. Dispose of spent Li‑Ion batteries according to local regulations.