We've had a NextGen 3.5 for four years. Ours does not have the voltage regulator
on it. We did purchase
the sound shield (a well made necessity). We mostly use it to charge the batteries and run our 16K Mermaid aircon. Our marina did not have electricity for two months after Ike, so it was running almost every day.
was a tight fit, we had to remove our locker lid to get it in vertically. We also had to temporarily remove the top sound shield to get it in. I thought incorrectly that the sound shield would be sufficient. I ended up having to also sound proof the cockpit
locker and lid with 1 inch material before I was reasonably happy with the sound level. Outside of the boat, it is very quiet with a centek inline waterlift muffler
. In the cockpit
you mostly only hear the hot air extraction blower. The vibration is not bothersome.
It does not have a replaceable oil filter
. Instead, there is a fine mesh basket. It also does not have an alternator
or battery charger
. The solenoid and fuel pump
run off of your 12 volt system. This means that you must have a charger running. This is not really a problem unless you are not also charging
your batteries at the same time. Make sure that you have more than one battery charger on board. On a recent trip, both our main engine and our 60 AMP battery charger were disabled
. Even though we had a functioning generator
, we could not recharge our batteries.
The only problem we have had is that some devices like battery chargers are sensitive to the voltage fluctuation on startup
. We have to temporarily run our water
heater to stabilize the genset so that the charger will function.
We asked NextGen why they didn't tell us about the voltage regulator
when we purchased the system. They said that it introduced additional reliability
problems. They also said that the generator
/ battery charger issue did not have any particular patterns. That is sometimes the generator would work with an identical charger on one boat and not another.
We would buy another.