Defibrillators, flight-deck tools and emergency lighting must not fail. The reliability, safety and predictable behaviour that keep NiMH in these demanding roles.
Cold weather drains capacity and raises resistance. The mechanisms behind NiMH low-temperature loss, and the cell and system design levers that recover performance.
Cell grading and matching is the hidden discipline behind reliable NiMH packs. How capacity, IR and voltage sorting prevent imbalance and premature failure.
One alkaline cell costs less than one NiMH cell — but a rechargeable NiMH replaces hundreds of disposables. The real economics and when each makes sense.