Sterling Power AB12400 – 12V Alternator-to-Battery Charger [Clearance]

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The Sterling Power AB12400 is a high-output alternator-to-battery charger. It takes the raw output of your vehicle's alternator and delivers a controlled, multi-stage charge to you r auxiliary battery bank — recovering batteries far faster than an alternator alone while protecting them from over- and under-charging. Offered here at clearance pricing. Sterling's alternator-to-battery chargers step the charge through bulk, absorption, and float and support multiple battery chemistries, so a discharged bank is brought back correctly and completely rather than left part-charged the way a standard alternator leaves it. Charging Specifications Type Alternator-to-battery multi-stage charger Nominal voltage 12V Charge stages Multi-stage: bulk, absorption, float Battery types Lead-acid, AGM, gel, and lithium Max output current High-output (model AB12400) — contact us to confirm the exact rating for your alternator Dimensions & weight 370 × 288 × 70mm; 5.1kg Warranty 2-year return-to-factory Key Features Charges directly from the alternator — no dependence on the vehicle's charging voltage being "correct" Multi-stage charging recovers auxiliary banks far faster than an alternator alone Suits lead-acid, AGM, gel, and lithium banks Charges roughly 5x faster than an alternator alone, accepting up to 50% extra power input Built-in de-sulfation capability Alternator and battery temperature sensing with automatic disengagement on overheat Optional remote monitor available that adds live current measurement 2-year return-to-factory warranty Need exact output current, dimensions, or fitment guidance for your alternator and battery bank? Contact us and we'll confirm from the datasheet before you buy. Show more