Rechargeable Battery Beltrona HETMINI.2500 3.6V 2500mAh — NiMH Compact Cell

Beltrona HETMINI.2500 is a rechargeable 3.6V 2500mAh NiMH compact cell designed to deliver steady power in small battery compartments. With a nominal voltage of 3.6V and a rated capacity of 2500mAh, this cell is intended as a high-capacity replacement for portable electronics and custom battery packs where space is limited. The chemistry provides predictable charge–discharge behaviour and supports repeated charging cycles for routine use.

Advantages

The NiMH construction ensures a balance of energy density and safety for everyday devices, offering stable voltage under load and good cycle life when charged with an appropriate charger. Its compact physical size allows integration into toys, handheld devices, flash units and assembled battery packs without major redesign. The cell is rechargeable, reducing the need for disposable batteries and simplifying maintenance for multi-cell configurations.

Suitable for

• Portable consumer electronics with limited internal space
• Toys and hobby devices requiring compact high-capacity cells
• Camera flash units and lighting accessories
• Replacement or custom battery packs for cordless devices

Key specifications

• Chemistry: Nickel‑Metal Hydride (NiMH)
• Nominal voltage: 3.6 V
• Rated capacity: 2500 mAh
• Form factor: compact cylindrical/prismatic cell suitable for tight spaces
• Rechargeable: yes, suitable for multiple charge/discharge cycles
• Typical applications: low- to medium-drain portable devices

How to use

Install the cell following device polarity markings and ensure secure contact with terminals. Charge the cell using a charger compatible with NiMH chemistry and the cell voltage; follow the charger manufacturer’s guidance for charge current and termination method. For best results, avoid deep discharges and recharge the cell when capacity decreases to maintain cycle life. When assembling multi-cell packs, match cells of the same type, age and state of charge to prevent imbalance.

Usage recommendations

Use a charger that supports NiMH cells and provides temperature or -dV/dt charge termination. Store cells in a cool, dry place and avoid prolonged storage at full charge for improved long-term performance. Dispose of cells in accordance with local regulations for rechargeable batteries.