Ultramax 12v 18Ah Lithium Nickel Manganese Cobalt Oxide (LiNiMnCo, NMC, NCM) Battery. Upgrade your alarm system with the high-quality Ultramax 12V 18Ah Lithium Nickel Manganese Cobalt Oxide battery. It's compatible with the Napco GEM-P816 alarm system and provides long-lasting power.
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