Does Harbor Freight sell lithium batteries?

Harbor Freight does offer lithium-based batteries in select product lines, primarily for power tools and automotive applications. Their inventory typically includes lithium-ion jump starters, cordless tool batteries, and occasional specialty items like LiFePO4 deep-cycle batteries for RVs. The available capacities generally range from 2Ah power tool packs to 18Ah lithium jump starters, with voltage options spanning 12V-20V systems. Pro Tip: Always verify battery compatibility with your devices before purchase—Harbor Freight’s lithium batteries often use proprietary connectors.

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What lithium battery types does Harbor Freight stock?

Harbor Freight primarily stocks lithium-ion power tool batteries (12V-20V) and jump starter packs. Their Bauer and Hercules tool lines feature lithium-ion replacements, while the Viking jump starters use lithium-polymer cells. Deep-cycle lithium options remain limited compared to traditional lead-acid.

For power tools, the 20V MAX Bauer lithium-ion batteries deliver 2Ah-5Ah capacities using NMC chemistry. The Hercules 20V series offers higher 8Ah options with built-in fuel gauges. In automotive, the 18000mAh Viking Jump-N-Carry uses LiPo cells capable of 700A cranking bursts. Unlike specialty battery retailers, Harbor Freight doesn’t typically stock larger LiFePO4 systems for solar storage. Pro Tip: Check for battery date codes—lithium cells degrade even in storage. For example, their 3Ah Bauer battery weighs 0.9lbs versus 2.3lbs for equivalent NiCad, demonstrating lithium’s energy density advantage.

Are Harbor Freight lithium batteries compatible with other brands?

Compatibility varies by product line—most use proprietary connectors preventing cross-brand use. Bauer 20V batteries physically fit some DeWalt tools but lack communication protocol alignment.

The Bauer 20V battery interface mimics DeWalt’s slide-style design but lacks the necessary data pin configuration. While third-party adapters exist, they void warranties and may trigger overcurrent protection. Voltage equivalency doesn’t guarantee compatibility—a Hercules 20V battery actually outputs 18V nominal like most “20V” tool systems. For jump starters, the Viking lithium models use standard USB and clamps compatible with any vehicle. Pro Tip: Bring your old battery to compare terminal layouts before purchasing replacements. Consider this comparison:

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