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Yuasa batteries supply backup power for just about every burglar alarm panel ever installed. They are reliable in that application but are sealed lead/acid rechargeable batteries.

My battery died (even using the tender) after 2,000 miles. The HD replacement battery off the shelf was just as bad. Finally another one off the shelf worked. Dealer told me the HD battery is AGM (Absorbed Gas Mat).

I use AGM batteries in my boat. They are heavier and costlier than lead/acid, but they charge faster, provide higher starting currents (all because they have less internal resistance) and hold their charge on the "shelf" much longer.

For 6 bucks, I'd buy the HD and be safe. But you might go through more than one...
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