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Battery Tender Power Tender 3 A 6V/12V charger
Model: Battery Tender Power Tender 3 A 6V/12V (022-0202-COS) · US configuration
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A portable, single-output AC charger and maintainer rated at 3 A, with selectable 6 V and 12 V lead-acid/AGM profiles and a 12 V LiFePO₄ profile. The exact product page publishes conflicting capacity ranges; its manual does not set a maximum charge capacity, so no Ah ceiling is used for matching.
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Explore this buying guide ↗Why consider this model?
- A portable one-battery choice when the battery is nominally 6 V or 12 V, its chemistry is one of the manual's selectable profiles, a 3 A output is appropriate, and the charger can remain in a dry location.
Tradeoffs to weigh
- The charger has one output, not simultaneous 6 V and 12 V charging. Its current product page claims 6 V lithium, but the exact manual states LiFePO₄ is 12 V only; the manual does not establish a BMS requirement. The product page lists two different Ah ranges while the manual does not give a maximum, so a numerical capacity request cannot be confirmed. The manual also says not to expose it to rain or snow despite the page's IP65 claim.
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