Battery pack ANSMANN 1S3P 3×18650 Li‑Ion 3.6V 10500mAh

Rechargeable battery pack ANSMANN 1S3P 3×18650 Li‑Ion 3.6V 10500mAh is assembled from three 18650 lithium‑ion cells connected in a single series-parallel arrangement that yields a nominal voltage of approximately 3.6 V and a combined capacity of 10500 mAh. The compact pack delivers extended run time compared with a single cell while keeping the single-cell voltage level, making it suitable for devices that require around 3.6–3.7 V but benefit from higher capacity and longer service intervals. The battery pack requires appropriate charging equipment and compatible protection or management circuitry to ensure safe operation and longevity.

Advantages

The 1S3P configuration provides increased capacity without raising nominal voltage, offering longer operating time in low‑voltage systems. Using standard 18650 Li‑Ion cells results in a compact form factor with a favorable energy‑to‑size ratio. The pack is rechargeable and suitable for repeated charge/discharge cycles under correct charging conditions. Construction follows common safety and compatibility practices for consumer Li‑Ion packs, allowing integration into portable electronics, small backup modules, and DIY projects when paired with appropriate protection and charging solutions.

Suitable for

• Portable devices and handheld electronics that operate near 3.6–3.7 V
• Battery backup units and low‑voltage power banks
• DIY electronics projects, prototypes, and hobbyist applications
• Replacement packs where single‑cell voltage and higher capacity are required

Key specifications

• Cell format: 3× 18650 lithium‑ion cells in 1S3P arrangement
• Nominal voltage: approx. 3.6 V
• Nominal capacity: 10500 mAh (combined)
• Chemistry: lithium‑ion (Li‑Ion)
• Rechargeable: yes
• Typical applications: portable power, backup, DIY electronics

How to use

Install the battery pack into the device or holder ensuring correct polarity and secure mechanical connection. Charge the pack only with a charger or charging circuit compatible with single‑cell Li‑Ion packs and configured for the pack’s nominal voltage and capacity; follow the charger manufacturer’s instructions for current and termination method (CC‑CV recommended). If the pack does not include integrated protection, use an external battery management system (BMS) or protective circuitry to prevent overcharge, overdischarge, and short circuits. Observe manufacturer guidelines for operating temperature ranges and storage state of charge to prolong service life.

Usage recommendations

For safe and reliable operation, pair the pack with a charger designed for single‑cell Li‑Ion chemistry, ensure proper voltage and current limits, and use protection circuitry if not built into the pack. Avoid exposing the pack to extreme temperatures, mechanical damage, or moisture, and store at a partial state of charge for long‑term storage.