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The KFFKFF is a 3-bank onboard charger that puts 5A into each of three 12V batteries. It handles lithium (LFP and NCM) and lead-acid types, charges from 0V, and runs in a sealed metal case rated IP68 for water, dust and salt. That makes it a fit for boats and outdoor power setups where the charger stays mounted and gets wet. Against common onboard chargers, its edge is the wide battery-type support and full water sealing; its limit is modest current, so large banks recharge slowly. Owners rate it well, though feedback is still thin.
In stockSold by KFFKFF Auto Tool Store USReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Availability unknown
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Lowest price we've seen: $109.99 on Nov 13 at Amazon. Tracked across 1 store since Nov 13.
A small but positive set of ratings, averaging 4.5 out of 5. Buyers mainly value the sealed build and the ability to bring back drained batteries; there is too little feedback to judge long-term reliability.
This is a 3-bank, 5A, 12V onboard battery charger for marine and other vehicle use. It charges lead-acid batteries as well as LFP and NCM lithium-ion batteries. It can charge a battery that has dropped to 0V.
The housing is sealed aluminum alloy with an IP68 rating against water, dust, and salt. The metal resists corrosion and conducts heat well, which helps dissipate heat. The charger operates from -4°F to 185°F (-20°C to 85°C). It has protections against overheating and vibration, and it keeps battery voltage and current stable during charging.
Charging runs in three stages: constant current, constant voltage, and maintenance. The charger adjusts its settings to the battery's condition. It is intended for boats, yachts, RVs, and cars, and it mounts with the included screws and expansion tubes.
