One of the most critical components of a switch tripping unit is the battery technology. Nickel Cadmium and NiMh cells are widely used due to their inherent reliability giving advanced service life, the chemistry also eliminates the fear of the unpredictable "sudden death" failure sometimes encountered with lead-acid batteries, as well as enabling the user to benefit from savings over regular replacement, maintenance and down-time costs.
A further advantage of the NiCd and NiMh cells is that they provide high power output within a narrow voltage "window" and can also provide very high currents of up to 20 times the battery's nominal capacity. The battery packs are often much lighter in weight and therefore easy to handle.
Amp range for individual cells is from 7oo MaH for a NiCd AA to 11Ah for a NiMh F.
Compared with VRLA batteries, NiCd and Nimh batteries are also more tolerant of electrical abuse such as overcharging, deep or even complete discharge, and offer superior performance at extremes of temperature, with an operating range of -20 to +40C.
Sincerely Plantautomation Technology
Regards,
Client Success Team (CRM),
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