Battery Charger/Maintainer - What do you have/recommend?

Yeah I’m not educated on this, just thinking a $20 brick must be cutting corners. And I’m only dealing with one vehicle.

 

Fortunately this $20 battery maintainer is not your $20 Princess Auto surplus deal.

Northern Tool sells the BatteryMinder as a loss leader at $19 around Xmas, regularly $39.
BatteryMinder makes the 1A version exclusively for Northern Tool.
BatteryMINDer® Plus Charger Model 12117: 12V 1.33 AMP Charger-Maintainer-Desulfator
https://www.northerntool.com/shop/tools/product_200332201_200332201

The 1.5A version sold by BatteryMinder is $66-$77
BatteryMINDer 1510 | 12 Volt Maintenance Charger with 10 Year Warranty

BatteryMinder 1.5A versions.
Car Battery Maintainer | Automotive Battery Charger | BatteryMINDers

100 or more threads on PC for BatteryMinder
https://priuschat.com/search/368879011/?q=BatteryMinder&o=date

Mendel, one of your discussions from 2015
BatteryMINDER 2012-AGM Battery Maintenance Charger | PriusChat

 

Speaking of $20 battery charger maintainers, I bought a Battery Tender from Home Depot, $20 markdown' open box, reg $49. Also paid $29 for a Schumacher 8 amp rapid charger at Walmart Canada last year. So don't judge $20 bricks on price alone.

Battery Tender weighs 1lb, BatteryMinder 2lb build is quite substantial compared to Battery Tender.

Schumacher 8 amp rapid charger $33 USA Walmart