Did you know that before lithium-ion batteries took over, nickel-based batteries like Ni-Cd and NiMH were the go-to for portable power? From powering early electronics to being used in hybrid vehicles, these batteries played a crucial role in energy storage. But with environmental concerns and the rise of Li-ion tech, they've largely been replaced. Still, they remain in niche applications today! #NickelBatteries #EnergyStorage #BatteryHistory #InSearchOfEnergyStorae