There are many maintenance chargers on the market.The last one I had was one of those so called "cheapies". Lasted about 90 days and died. Tried a regular charger with the smart plug. This one from Costco I got on sale for $33. My only regret was not buying 2.
But even at it's regular $46 price it's a darn far cry better than anything else I have found. Yeah I could have bought the smaller version with IIRC 1 amp but everywhere I looked they cost more than I paid for this one. So what is the problem?
Some are junk (Horrible Freight?)....some are fine
I have been using some for up to 15 years, and have never paid more than $30 for one.
Many bought (Battery Tender .75 amp) for $19.99.
I have only used Battery Tender, and battery Minder Brands, but just ordered 2 NOCO.