Audew Car Jump Starter

On-Board Battery Charger

On-Board Battery Charger 


NOCO Genius GENM3 12 Amp 3-Bank On-Board Battery Charger 
On-Board Battery Charger



 On-Board Battery Charger 
On-Board Battery Charger

 On-Board Battery Charger 
  • A 12 amp (4 amp per bank) on-board battery charger for charging and maintaining three 12-volt batteries independently.
  • Safely charge all types of lead-acid batteries from 20-120Ah, including wet, gel, AGM, and deep-cycle batteries.
  • Advanced safety protection featuring spark-proof technology, plus reverse polarity, thermal, ignition, and overcharge protection.
  • Rugged and waterproof construction capable of submersion down to 3-meters and rated IP68 and NEMA 6P.
  • One of the most advanced battery chargers in its class, which is certified to UL1236, ISO 8846, 33 CFR 183. 410, plus backed by a 5-yea
On-Board Battery Charger

On-Board Battery Charger 

On-Board Battery Charger 

I bought this to replace an old "World's Foremost Outfitter" store brand charger that went kaput and managed to pull my two month old deep cycle battery down to 4 volts. I was concerned the battery was toast. I shopped for a decent two bank charger that would condition batteries to help with sulfation, and landed on this one. Based on cost and reviews I went for it.

The deep cycle battery was too dead for this charger to initially detect it, so I had to hook it up to a "dumb" charger for about 24 hours to get the voltage high enough for this charger to detect it and start charging. Once it detected it, I let it sit. It took about 48 hours to get from 12 volts to fully topped off and conditioned at 13v+, but it pulled it off, and the next day I took the boat out and got a full day of trolling off of that battery. Super duper satisfied. Now when I plug it in after a trip, the batteries are topped off overnight.

Side note: one review mentioned a concern about the waterproof nature of this product. I was curious about that so I took the rear cover off. The inside of the unit is completely sealed with epoxy potting compound so I'm 100% confident that it is waterproof.
On-Board Battery Charger

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