NiMH Battery News & Industry Insights

Selecting Sealed NiMH for Shipboard Reserve: Sizing the GMDSS Hour and Emergency Lighting, Charging at Sea, and NiMH versus Lead-Acid and NiCd

2026-09-16

Selection and design of sealed NiMH shipboard reserve power: calculating the GMDSS radio-reserve hour and emergency-lighting energy, 24 V architecture, automatic connection and charging at sea, vibration/heel/salt construction, supervision, and honest comparison with flooded and VRLA lead-acid and nickel-cadmium.

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The Last Hour and the Long Night: SOLAS Emergency Power, GMDSS Reserve Sources and the Battery Loads That Must Survive a Blackout at Sea

2026-09-16

Working principle and load profile of shipboard emergency and reserve power under SOLAS: the 18 h cargo / 36 h passenger emergency source, the independent Chapter IV/13 GMDSS radio reserve source, emergency lighting and navigation/communication loads, and where sealed NiMH modules fit versus the mandated primary batteries of survival-craft radios.

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Certifying Platform Door and Fare-Gate Backup: ISO 18298 Functional Safety, Station EMC, Cycle and Climate Tests, and the Sealed NiMH Battery Dossier

2026-09-16

Testing and certification roadmap for sealed NiMH backup in platform screen doors and AFC fare gates: ISO 18298 and EN 14752 emergency egress and functional safety, station EMC, climate/vibration and high-cycle testing, fail-safe validation, and IEC 61951-2, IEC 62133-2 and UN 38.3 battery evidence.

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Selecting and Sizing Sealed NiMH Backup for PSD Controls and AFC Gates: Cycle Energy, Fail-Safe Architecture and Chemistry Choice

2026-09-16

Selection and design of sealed NiMH backup for platform screen door local controls and AFC fare gates: emergency cycle and hold energy, pulse current, 24 V architecture, float charging, supervision and self-test, and comparison with VRLA, lithium and capacitor/mechanical fail-safe options.

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Doors That Must Fail Safe: The Power and Battery Duty Behind Metro Platform Screen Doors and AFC Fare Gates

2026-09-16

Working principle and power/battery duty of metro platform screen doors (PSD) and automatic fare-collection gates: controlled sliding doors and emergency egress, the fail-safe-open requirement on station power loss, the small sealed backup that powers defined open/close cycles and last-gasp logging, and ISO 18298 / EN 14752 context.

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Qualifying Onboard Train-Control Backup to EN 50155: Temperature, EN 61373 Vibration, EN 50121 EMC, EN 45545 Fire and the IEC 62973-4 Sealed NiMH Dossier

2026-09-16

Testing and certification roadmap for sealed NiMH onboard ETCS backup: EN 50155 temperature/supply and start-up tests, EN 61373 shock and vibration, EN 50121 EMC, EN 45545 fire, plus the IEC 62973-1/-4 railway battery, IEC 61951-2, IEC 62133-2 and UN 38.3 dossier and safety integration.

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Designing an EN 50155 Sealed NiMH Backup for ETCS Onboard Equipment: Bus Architecture, Cold-Start Margin and NiMH versus NiCd, Lead-Acid and Lithium

2026-09-16

Selection and design of sealed NiMH onboard backup for ETCS vital computers, BTM, DMI, JRU and GSM-R: bus and charger architecture across 24/48/72/110 V, ride-through and cold-start margin at -40 C, vibration and fire construction, supervision, and an honest chemistry comparison under IEC 62973.

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Powering the Driver's Last Authority: The Onboard ETCS / BTM / DMI / JRU / GSM-R Load Profile and Its Hold-Up Battery

2026-09-16

Working principle and load profile of onboard train-control backup power: the ETCS European Vital Computer, Balise Transmission Module, Driver-Machine Interface, Juridical Recording Unit and GSM-R radio; EN 50155 supply and temperature classes; and the hold-up/ride-through duty of the train battery and local backup.

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