Originally Posted by k corbin
I bought a 12v charger adapter cord that plugs into my Honda 1000i generator but that was just for a backup situation if the charger built into my converter failed or if my small 110v powered trickle charger I keep for the car failed. It hopefully will never be needed but it takes up very little space to store so makes a good emergency backup option.
Another small (900/700 watt) generator is the Ryobi
. It only runs on propane
(even 1 pound disposable cylinders), is small & light
, and you don't have to deal with gasoline. Like any of the generators under 2K, it won't run your AC or much else, but is great for topping off the batteries when a string of cloudy days limits solar
One additional point - at 700 running watts, converters over 35 amps may draw too much for the generator if the batteries are very low. When I switched to lithium batteries, which draw the full output of the converter until 98% charged, I had to switch from a 45 amp converter to a 35 amp. Lead acid batteries will draw less once they reach the absorption stage, but when heavily discharged, may draw the full output of the converter during the bulk stage of charging.
As to using the 12V output on most generators, as Raspy noted, the charging current is limited, and the output is unregulated. It would be possible (but unlikely) to overcharge your batteries if left on thee generator for a long time.