Description

This nickel-cadmium battery delivers 3.6V at 900mAh capacity for emergency lighting systems, specifically designed as a replacement for Duceri EMD2WMEXHSIGN and EMD2WMEXSIGN emergency exit signs. The battery measures 200mm x 90mm x 45mm and weighs 64g, fitting the standard battery compartment in these Duceri units.

Emergency lighting batteries are charged continuously by the mains supply and discharge only during power failures or when the exit sign is tested. This NiCd chemistry handles the charge-discharge cycle reliably over a 4-year service life before replacement is recommended. The parallel configuration means the battery sits alongside the mains supply circuit rather than in series, maintaining voltage stability during charging.

The white casing houses three sub-C NiCd cells connected to deliver the required 3.6V output. A two-wire connector with red and black leads plugs directly into the Duceri sign’s internal