NiMH Rechargeable Batteries for PCB / Printed Circuit Board

Rechargeable NiMH batteries for PCB / printed circuit board

NiMH (Nickel-Metal Hydride) PCB-mount batteries are designed for direct board integration, providing a rechargeable and repeatable solution for backup power, hold-up functions and service supply. They are well suited to professional environments where reliability, mechanical compatibility and predictable availability matter.

Typical B2B use cases

• Backup for control logic, memory modules and RTC (real-time clock)
• Automation and monitoring boards requiring buffer power
• Security, networking and equipment with continuity functions
• Instrumentation, embedded systems and industrial electronics
• Service and repair where a mechanically compatible replacement is required

Key features and compatibility checks

With PCB batteries, compatibility is not only electrical: mechanical fit is often the critical factor. Always verify: overall dimensions, orientation (vertical/horizontal), terminal style (pins/solder tabs), pin pitch and mounting points. Electrically, NiMH cells typically provide 1.2 V nominal per cell; total voltage depends on how many cells are connected in series.

How to choose the right battery

• Required voltage: driven by cell count and the on-board charging circuit
• Capacity: size it based on backup time and load current (mAh)
• Form factor: height constraints and enclosure limitations
• Terminals and pitch: essential to avoid production rework or service adapters
• Cycle life: charge/discharge frequency and operating profile
• Ambient temperature: impacts performance and lifespan

Operational benefits for integrators and service labs

Correct selection reduces downtime and rework: PCB-ready terminals simplify assembly and standardize replacements. Elcoteam supports selection with a technical, consultative approach, especially when compatibility and supply continuity are priorities.

Frequently asked questions

Q: Can I replace a PCB NiMH battery with a different capacity?
A: Often yes, but check mechanical fit and the charging circuit limits (current/time). With the same voltage and footprint, higher capacity may require longer charging.

Q: How do I confirm compatibility with my board?
A: Measure pin pitch/position, dimensions and orientation, then verify voltage and the requirements of the existing charging circuit.

Q: Is NiMH suitable for continuous backup functions?
A: It is commonly used for buffer and backup in electronics. Real lifetime depends on temperature, charge profile and cycle count.

Q: Does polarity matter on PCB mounting?
A: Yes. Before soldering, cross-check the PCB marking and the battery polarity marks to prevent damage to the charging circuitry.

Related categories

For board-level power projects, consider related categories such as battery holders, connectors and charging/power components. Technical support and shipping are available for customers in Italy and the EU.