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The BOS Lithium Extension Battery is a fully modular battery solution that enhances performance, longevity and upgrade capacity of lead-acid batteries in solar or any applications with battery storage. The LE300 has 328Wh of lithium capacity and is compatible with new or existing 12v lead-acid batteries and charge controllers. Easy to install, simply connecting the LE300 in parallel to a Lead-acid battery bank. The LE300 capacity is very flexible and can be increased by stacking multiple LE300 units in parallel until you meet your system's needs!
The benefits of lithium for your lead-acid battery system
In pure lead acid systems, batteries often fail within one to three years, as batteries get damaged by continuous operation at a low state of charge. Pure lithium systems perform much better and have a longer life but are expensive. Initial investment costs for hybrid systems (LE300 and lead-acid) are close to the costs of a lead-acid only system and approx. 50% lower than pure lithium systems. By adding the LE300 to a new or existing lead-acid battery system you achieve the longevity and cycling benefits of lithium for a fraction of the cost of a pure lithium battery system.
Priority lead-acid charging - Priority lithium discharging
With a LE300 integrated battery system, the Lead Acid Battery is kept fully charged, while the cycle-resistant LE300 Lithium Battery is used for average daily usage cycles and is preferentially discharged under load. The lead-acid battery is preferentially charged over the LE300, meaning the lead-acid is better maintained and managed increasing its useful life. The storage and discharge capacity of the battery system is increased and performance optimised, so you can look forward to better daily performance and a longer life span of your battery system.
Modular and easy scaleable to meet your storage requirements
LE modules can be easily staged together to meet your individual energy storage needs. Up to 24 (7.8kWh Lithium capacity) LE300s can be connected together, on top of your existing or new lead-acid battery. Thanks to the intelligent electrical design, no additional charge controller or electrical wiring changes are needed.
Works with any lead-acid based system and application
The BOS Lithium Extension Batteries can be used wherever a classic¬†lead-acid battery needs to be extended or the benefits of lithium incorporated into a battery system. The scope and application of the LE300 is such that, our customers¬†often inspire us with new ideas and possible application areas. From Solar Home systems, to Caravans and Boats, to Mobility equipment, the LE300 has touched every kind of storage application you can ever think of!
Robust and genius housing design, low-temperature tolerance
Elegant design and robust housing keeps the lithium batteries safe, even when you are driving off-road or on bad roads. Thanks to optimised sizing and variable installation possibilities, the LE300 can fit into the smallest of the corners. Each module is E24 certified which allows them to be safely installed in automobiles. The LE300 modules have an integrated heater, so the lithium batteries are protected against cold temperatures and perform without any energy losses. So installing LE300 in Snowy Mountains or Tasmania is not an issue!
Plug and play, simple installation and user-friendly operation
With the plug and play design, the LE300 is easy to install and operate by any technically minded person. Simply connect the positive (+) and negative (-) terminals of the lead-acid battery and the LE300 with automatically begin functioning. The State of Charge (SOC) indicator and LED display panel provide valuable information about the status of the battery for peace of mind. Installing Lithium batteries has never been this easy!