NOCO Genius GEN5X1: 1-Bank, 5A Onboard Battery Charger - 5A Per Bank, 12V Waterproof Marine Charger with Overcharge Protection & Temperature Compensation – for Lead-Acid & Lithium Batteries

Bought this for an onboard maintainer in a diesel pickup. Mounted it on the ledge above the brake fluid reservoir with 3 M heavy duty outdoor velcro. Close to the battery and rock solid. This velcro has adhesive that rivals super glue. Be sure you have it where you want it the first time. ( ask me how I know). Ran the wiring in semi rigid loom and connected the ring terminals to the battery bar. Plenty of wire included ( 6 feet each for power and battery wires) . Connected the power cord to a waterproof external receptacle mounted under the vehicle's bumper. Works great, fully automatic. Returns to your last setting for battery type. No need to open the hood and select battery type each time you plug it in. For the quality, it's a bargain. Short trips or long periods of storage in a diesel are hard on batteries and they're expensive. This maintainer is cheap insurance. I plug it in about once a week and it takes about 2 hours to top off the batteries. It balances the parallel batteries perfectly, both at 12.7 volts when finished.

Incredible charger, well worth the money. I've used it on AGMs and acid batteries and works great. I had 2 AGM batteries that had zero voltage and the charger is able to push a charge to the batteries long enough to trigger the charger to get them back to full capacity. Quality is great, it's compatible with every automotive battery on the market and helped bring back numerous batteries instead of me having to go buy new ones. Well worth it.

Highly recommend NOCO products over all their competitors. Why? High quality, customer service (if you ever need it), value for the money, ease of use, size, and look!

This thing works fantastic. Keep my battery charged to the fullest at all times and monitors it just like it’s supposed to wonderful product.

The interface is stupid simple... it does all the work without really telling you what it is doing. I wish it was able to show some error codes and/or battery stats, but the 4 colored lights indicate pretty much everything you need to know I suppose (given a relatively healthy battery). Nice little compact unit for sure.

NOCO products seem to be pretty good products, but how am I supposed to hook this charger to a car battery without either alligator clips, which it doesn't come with, or the correct connections to accommodate the larger terminal posts? I'm kind of disappointed. I guess I will need to make my own connections for my car battery.

I installed this on our class a diesel pusher. This is hardwired to the chassis batteries, two lead acid group 31’s. This multi stage charger is perfect. Floats both chassis batteries at 13.58 vdc with minimal power draw. Robust and waterproof with temperature compensation. Also works on AGM and Li batteries. I mounted it in the outside battery bay compartment as a permanent installation. Should save on electricity use, as our old Heart Freedom Combi inverter used roughly 3a 24/7 charging the house and chassis batteries. I converted the house to a 310 ah Li mini with its own Li profile charger, so the inverter charge circuit is now happily turned off. No more constant inverter hum… Don’t be tempted by inferior cheaper battery maintainers, trust me I tried and sent back two other brands because they didn’t work as advertised. Like not even close. This NoCo charger works exactly as advertised, however NoCo does not specify what their charge voltage profiles are. I also have a ten year old NoCo Genius 750ma battery maintainer for my motorcycles and atvs. Still going strong and the batteries last years longer with proper storage charging. Let’s face it, batteries have become very expensive. These chargers literally pay for themselves in short order. NoCo is the brand you want to purchase for the longest battery life because their charge profiles are optimal.

Works great! Mounted it on the firewall of my UTV to maintain my battery.

They don't fit Australian plugs without a adapter great unit but the plugs let them down you should not have to rewire for our plugs the company is very shot sighted on this matter

Is a solid product and it’s waterproof.

Amazing build quality as always for Noco. Pretty heavy and rigid brick . On my test stand was an AGM battery brand new 70AH 710 CCA 120RC. Charger outputs 4.7 - 4.8 Amp max. Battery was as low as 10.8 V, supplied max current quickly, took about 12 hours to charge full. Gets pretty worm mostly on the back side.

I have this installed in my slide in truck camper. It is maintaining and charging its battery when connected to shore power. SO far I have to say, I like this unit. I had an older NOCO that was great, and still is... but it is rated much lower (2.5 AMP as I recall) and did not do Lithium. I decided to up my game and use this in its place and keep the older unit as a spare. The Gen5X1 is a great unit. Its small size and higher AMP rating along with its smart settings and maintainer capabilities make it a real winner in my books. It works great, it easy to use and is very solid. All NOCO devices have excellent connectors and cables as well as a decent quality feel and function. So far after about 1 year-ish I am impressed. RV, Camper, Marine, you name it... this is a handy little unit with some power and versatility.

I got this to replace my old battery charger which cannot charge Lithium battery. This one works wonderfully! 30 mins is enough to fully charge my Lithium motorcycle battery. A super fast charger that is able to charge all kind of 12V battery, all you need is just push a button to change the mode. This is my 2nd Noco product after my jumpstarter and I can say Noco never disappoint.