Lead acid batteries typically have lower purchase price as well as lower installation costs in comparison to lithium ion options. However, as we have previously mentioned, li-ion batteries last several times longer and so over the lifetime of the two, a lithium-ion battery is more cost-effective.
With the range of benefits that lithium ion batteries offer, many lead acid batteries are being replaced with their lithium ion counterparts. It is certainly possible to do so, however, it is important to take advice from a professional in order to ensure safe and optimum performance if this is something you decide.
There are several factors that can lengthen the lifetime of a lithium ion battery, such as using partial-discharge cycles, around 20% – 30% of battery capacity before recharging. Keeping the battery in a fully charged state shortens battery life, equally full discharge cycles are to be avoided if possible. The depth of discharge is critical with lead acid batteries, they should not be discharged past 50 percent, as doing so has a significant negative impact on the lifetime of the battery.
Limiting extreme temperatures whilst the battery is charging extends battery life, especially prohibiting charging below 0°C. High currents can place excessive stress on a battery, it is important to avoid high charge and discharge currents. Click here to read in more detail.
The way in which we charge li-ion batteries also impacts battery life and it is therefore important to use the correct charger type for the battery technology. Li-ion batteries have a much more demanding charge regime than lead acid and so it is important that a compatible charger is used.
Lithium ion batteries deliver a range of benefits over their lead acid counterparts and can ultimately be more cost effective over their lifetime. To discuss the options for powering your traffic control systems, contact the TWM team.
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