![]() A huge advantage of lithium is the ability to sustain a low state of charge (partial state of charge) for a prolonged amount of time without any negative effects such as sulfation which is a common problem with lead-acid batteries. ![]() Lithium batteries have a much higher energy density compared to lead-acid and are therefore lighter and more compact. This flexible sizing allows for additional capacity to be added at a later stage, which is a real bonus for both installers and customers alike. In contrast, lead-acid battery banks have a fixed size or capacity whereas lithium systems do not suffer this limitation. Over the last few years lithium-ion battery systems have become extremely popular due to their high round trip efficiency (92% to 98%), compact size, lightweight and scalability. ** Cutout voltage & SOC based on inverter settings and rate of discharge. High temperatures can drastically reduce battery life Usable capacity limited - Max 40% DoD on a regular basisĬannot sustain a partial state of charge for long periods The battery will not cutout at low SOC or low voltage** ![]() Lead-acid batteries can be discharged down to 0% state of charge if needed for backup, but it is not recommended as it can severely reduce the life of the battery. This is important, especially in emergencies or when a backup generator fails. One of the most significant benefits of lead-acid batteries is unlike modern lithium batteries the battery will not shut-down at a low voltage or low state of charge (SOC).
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