STORAGE BATTERY CONDITION INDICATOR Russian patent published in 1997 - IPC

FIELD: storage batteries. SUBSTANCE: device has magnetically operated contact placed in cartridge secured in battery cell plug, its bottom end being fixed at separator level, and ring-shaped magnetic float carrying weight chosen from condition P_fl=ρ_elmin·V, where ρ_elmin is critical low specific gravity of electrolyte corresponding to permissible state of battery cell discharge; V is float volume. EFFECT: provision for continuous check-up of electrolyte level, critical vacuum, and charge-discharge process in each battery cell. 1 dwg