The SMS (Sunmate) solar lithium battery is a high-performance LiFePOâ‚„ (lithium iron phosphate) energy storage unit engineered for durability and safety. It offers a long cycle life (around 6,000 cycles), built-in battery management system (BMS) to prevent overcharge/discharge, and operates efficiently in a broad temperature range. SMS batteries support deep discharges, making them ideal for solar backup in homes or small businesses. Their compact design allows for flexible installation, and they often come with a 5-year warranty. Etc
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