Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The Optima YellowTop D34/78 is a dual-purpose AGM battery: it starts the engine and can run accessories with the engine off. Its spiral-cell design resists vibration and deep discharges better than a conventional flooded battery. With 750 cold cranking amps and 55 Ah, it suits trucks, SUVs and vehicles with winches, audio or other added electrical loads. It is a common upgrade over a standard starting battery, but it costs more and needs an AGM-compatible charger.
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Lowest price we've seen: $299.99 on Nov 9 at Walmart. Tracked across 4 stores since Nov 9.
Owners generally rate the YellowTop highly for durability in trucks and vehicles with accessories. Some report shorter life than expected when it is deeply drained often or charged by a standard alternator.
