Lithium looks to wireless networks

The need for more compact, reliable batteries for the power back-up systems in both mobile switching centers and base transceiver stations has accelerated the search for cost-effective alternatives to valve regulated lead-acid (VRLA) batteries. One key contender is the lithium-ion battery, which is known for its relatively high energy density and low self-discharge, balanced against high costs. Field tests at the Vodafone base transceiver station confirmed the expected performance of the prototype Li-ion battery, namely its change and high rate discharge performance under real application conditions in a live installation. Showing no significant loss of performance during the nine-month test period, it was concluded that Li-ion batteries have the potential to offer a viable alternative to VRLA in telecoms applications.