Rechargeable Battery Beltrona EISHB90A 3400 mAh — Lithium Ion, 3.7 V Capacity

Beltrona EISHB90A is a rechargeable lithium‑ion cylindrical cell with a nominal capacity of 3400 mAh and a standard nominal voltage of 3.7 V. The cell is intended for use as a replacement or power source in compatible portable devices and DIY battery packs that accept high‑capacity single Li‑ion cells. The design prioritizes a balance of energy density and stable voltage output for extended run time in devices that require a 3.7 V cell.

Advantages

The battery offers a high nominal capacity of 3400 mAh for longer operating periods compared with lower‑capacity cylindrical cells. Its lithium‑ion chemistry provides a favorable energy-to-weight ratio and low self-discharge when stored correctly. The 3.7 V nominal voltage is compatible with many consumer and hobbyist devices that accept single Li‑ion cells. The cell construction supports repeated charge and discharge cycles typical for rechargeable applications, making it suitable for repair and replacement tasks.

Suitable for

• Replacement of single 3.7 V lithium‑ion cylindrical cells in portable electronics
• DIY battery packs and hobby projects requiring a 3400 mAh cell
• Repair of handheld devices, flashlights, and small appliances designed for cylindrical Li‑ion cells
• Prototyping and testing where a high‑capacity single cell is needed

Key specifications

• Chemistry: Lithium‑ion (Li‑ion)
• Nominal capacity: 3400 mAh
• Nominal voltage: 3.7 V
• Cell format: cylindrical single cell
• Intended use: rechargeable single‑cell applications

How to use

Charge the cell with a compatible Li‑ion charger designed for a 3.7 V nominal cell and follow the charger manufacturer’s instructions. Install the cell in the device observing correct polarity and any specified insulation or holders to prevent short circuits. For multi‑cell assemblies, ensure proper cell matching and use appropriate battery management or protection circuitry to maintain safe charging and discharging. Do not charge the cell with non‑Li‑ion chargers or apply voltages outside the recommended range.

Usage recommendations

Store the battery at moderate temperature and partial state of charge for long‑term storage. Avoid exposure to extreme heat, direct sunlight, or humid conditions. Use a charger with overcharge and overcurrent protection, and replace the cell if physical damage, swelling, or significant capacity loss is observed. Dispose of the cell according to local regulations for lithium‑ion batteries.