NiMH Battery News & Industry Insights

Float, Standby and Backup Charging of NiMH: Guaranteeing Readiness Without Floating a Cell to Death

2026-09-12

NiMH in standby/backup service: float and trickle charging contrasted, why continuous float harms NiMH, intermittent readiness charging and pulse maintenance, self-discharge compensation, and design for medical, UPS and emergency systems that must be instantly ready.

More Details

Solar and Off-Grid NiMH Charging: Variable Input, Maximum-Power Tracking and Pulse-Width Modulation Under an Unsteady Sun

2026-09-12

Charging NiMH from solar and off-grid sources: variable/intermittent input current, maximum-power-point tracking, PWM/pulse charge management, termination when no steady current exists, and why NiMH's tolerance suits remote-power duty.

More Details

Smart AA/AAA Chargers: Independent Channels, Sensing and the Two-to-Four-Hour Consumer Fill

2026-09-12

Design of consumer NiMH AA/AAA smart chargers: independent per-bay channels, -dV/dT termination per cell, refresh modes, the 0.5-1C two-to-four-hour fill versus 0.1C overnight, and usability/safety features that define a quality charger.

More Details

Charging NiMH in Hybrid Vehicles: Regenerative Pulses, HRPSoC Operation and the Prius Precedent

2026-09-12

How hybrid-electric vehicles charge NiMH traction batteries: high-rate regenerative-braking pulses, high-rate partial-state-of-charge operation, pulse-power resistance testing, thermal management and the longevity lessons of production HEV packs.

More Details

Balancing NiMH Cells During Charge: Passive, Active and Charge-Shaping Approaches

2026-09-12

Cell balancing for series NiMH: passive bleed balancing, active charge redistribution, charge-profile shaping and rest-based equalisation; what works given NiMH's recombination self-discharge and how to size a balancer.

More Details

Series Mismatch in NiMH Packs: Why the Weakest Cell Decides When Charging Stops

2026-09-12

How capacity, SOC and impedance mismatch in series NiMH strings causes unequal charging, early recombination in the strongest cell, blurred pack -delta-V and overcharge of laggards; matching, topology and detection.

More Details

Thermal Management for Charging NiMH Packs: Conduction, Airflow, Sensing and the Hottest-Cell Rule

2026-09-12

Pack-level thermal design for NiMH charge: heat generation distribution, conduction and airflow paths, cell arrangement and spacing, NTC placement and number, and control from the hottest cell to prevent runaway during fast charge.

More Details

Charging NiMH in Heat: High-Temperature Derating, Charge Acceptance and the Disappearing Stop Signal

2026-09-12

High-temperature NiMH charging: lowered oxygen-evolution potential, faster corrosion, the vanishing -delta-V, derating curves and thermal-aware termination, for hot enclosures, engine-bay and tropical deployments.

More Details

Language