Water companies currently use flow, pressure and acoustic loggers to monitor and detect leaks on clean water distribution networks. On one of these networks, there can be circa 60,000 loggers deployed, which are all powered by lithium batteries. The expected battery life is normally 5 years, after which a battery replacement programme is carried out. For each battery replacement it can take up to 1 man hour per visit and with the amount of loggers on the network this becomes a very costly exercise. The only alternative to this is taking out new contracts with other providers to install new loggers, which is not a desirable option as this can lead to higher cost and too many loggers in the network giving conflicting signals.
Extending Battery Life of Water Network Loggers