NOCO Genius GEN3 30A Smart Marine Battery Charger - 3 Banks, 10A Each

Tomb: Everything about this charger is top notch. The quality is fantastic, it is sealed up and built like a tank. I'm sure it would work totally submerged for as long as you wanted. I wasn't sure about how to hook it up so I emailed support and they got back to me with a very detailed email within hours. Simply fantastic, it has been keeping my 8D batteries alive and topped off in between boat rides.

United States on Sep 19, 2020

Amazon Customer: Plus gros que je ne croyais, mais dans mon cas ça ne me dérange pas du tout.
Il fonctionne à merveille. Simple à utiliser! J'adore!
Je m'en sers pour charger une batterie "deep cycle" AGM de 250 Ah. éventuellement, j'ajouterai 2 autres batteries identique à mon trailer/camper tout terrain, et ce chargeur sera branché en permanence.

Canada on Sep 09, 2020

Travis Kenney: Great product very easy install!

Canada on Aug 05, 2020

TC: Have this mounted on my boat. Love it easy to install. Easy to use. Just plug it in and your batteries will be nice and charged for you next time you need them.

Canada on May 10, 2020

David B.: Heavy duty construction. I build a emergency power unit for my sump pump with it.

Canada on Mar 26, 2020

T: I've had this for right at a year now and I love it. It's clean looking in the battery compartment (Triton bass boat), charges all three batteries in time for the next day on multiple day trips, even after a very windy day when I've been on the trolling motor all non-stop. My last boat had a Dual Pro Pro series and I like this NOCO charger better. I have it connected to (2) wet cell 29 series deep cycle, and (1) 31 series AGM Deka Intimidator batteries.

United States on Dec 30, 2019

Chris T.: I have 3 batteries in my boat. 2 optima group 31's in parallel on one side of the switch and a group 34 on the other side. Apparently, Optima doesn't have a charger that can charge their own batteries on parallel, else you'll get all kinds of funky bad battery readings. After much research, I pulled the trigger on this. According to NOCO they have super special magic capability to charge batteries separately while wired in parallel. I don't know how they do but it seems to work. I don't get anymore bad battery warnings and I'm fully charged overnight.

United States on Aug 12, 2019

Edward F: We have 3 deep cycle marine Blue top Optima batteries group size 34. Yeah like $900 worth of them bad boys. Two are connected to the boat switch and the third we have it connected to a power inverter for our refrigerator. Needed a charger that would do all three separately but in one charger. Also that would maintain charge and health of all three batteries when docked. 3 in 1 charger can’t beat that. Has seperate charging light indicators to update you to what’s charging and what’s not. We have confidence now that all batteries will be in good maintenance and protect our investment for many years to come.

United States on Jul 21, 2018

Jakeface: This is my 3rd Noco charger for my boats. Great solid construction, dependable and handsfree operation makes these chargers a no-brainer. The only thing about them is the 3 prong plug usually has to be removed and wired directly to boat shorepower or panel but that is not an issue in most cases.
Highly recommend these chargers.

Canada on Nov 30, 2017

casperwb: installation is straight forward and easy. each bank has a negative and positive wire and there is a three prong 110volt plug for ac connection. the unit is totally sealed so being in the engine room and getting splashed from wash down is not a problem. a screw on each corner makes mounting easy.
hooked it up to two new starting batteries NP200 and one used generator/house deep cycle battery. the indicator lights showed red and after two hours the starting batteries showed green and tested at 14.68 volts. when i checked the house battery the next day the indicator light on the charger had gone green. it is slightly warm to the touch.
when I use the boat without the generator running and I return to the slip, on plugging in shore power the indicator light will be red and go green after an hour or so. the unit makes no noise and does not affect the onboard electronics.
my generator does not have an alternator so the charger supplies voltage to the batteries. I have had no problems with the unit and I have been keeping an eye on it just because it is new, which is super easy because all you have to do is glance at it and you get the status of each bank. ...

United States on Dec 26, 2016