I Googled that Battery Minder 1500. Interesting it states it has a full time high frequency pulse desulfator... and at a good price!
I'm gonna need do some research and learning on the desulfator as I assume my normal battery tenders I use don't have that? Perhaps the NOCO does but I may need to turn it own as its not auto? I'm not sure?
I researched brands battery maintainers a lot before buying one. It's the best that I know of.
I have owned many a Harley 30 years now and my bikes are ALWAYS connected to a tender EVERY night after I ride!
I like to let my mobility scooter's AGM deep cycle batteries cool for a couple hours after a long ride (especially in summer) before putting its 4A charger on it. Same for my car's wet battery before I put 1.5A charger on it.
Two or more hours for battery to cool before putting a maintainer on a battery is a good idea (in summer) IMO. Why?
Using a battery heats a battery. Charging also heats a battery. Too much (or too often) heating a battery will dry it out internally faster/sooner. That reduces battery service life.
So I suggest waiting until 2+ hours after use before charging. At least on warm/hot summer days.
Also, motorcyle or car doesn't need a charger/maintainer if/when it goes on a 30+ min highway drive at least once a week.
I always use a East Penn ( Deka ) AGM batteries old under the O'Reilly brand or the Harley OEM, AGM thats also made by East Penn and the same battery minis the Harley Logo.
I have an Oreily Superstart flooded battery in my Buick. It's a great battery at an OK price. However,
in future I'll buy Walmart Everstart because it's the same or similar battery for 50% less money.
As far as maintainers I use the Harley brand made by NOCO and the larger NOCO Genius on a 2nd bike as well as a old shumaker on my old EVO and a very old Black & Decker that is waterproof and great for outdoor charging that most recent stayed connected to a garage queen 2015 Hellcat for 11 years straight. The car sitting most of the time in a hot garage I got 5 years out of the factory battery replaced with a NAPA wet, flooded non AGM and I replaced that battery 3 weeks ago before selling the car so the car was 11 years old and battery replaced 2x! Right on schedule, about EVERY FIVE (5) YEARS.
Its my understanding my hot southern summers and hot garage is harder on a batteries life than living in a cool area? You Arizona folks please chime in???
Hot climates and cold climates are hard on battery, starter, and alternator, but for differing reasons, IMO.
I keep everything I don't drive everyday on a tender. Years ago I had bad luck with the old Battery Tender brand and would replace more dead tenders than batteries but I have had great luck and NO failed tenders the last 10 years I guess but I no longer buy the Battery Tender brand.
In my research, it appeared to me that Batteryminder and NOCO are the best that I know of.
BTW - Batteryminder claims to be waterproof for outdoor charging. I occasionally use it outdoors in my wet climate, but I put it under car hood for shelter. I see no reason to test how water resistant Batteryminder is when I can just close the hood most of the way.
Most of the time I use it on my car in my garage.
In general living on the Hot Summer Southern coast in hot Carolina with a hot garage I get about 5 years out of a battery, a Harley battery, a car battery, I get 4-5 years and once 7 years on a older Harley battery with 5 years being the norm.
You're doing well. My goal is 4-5 years with the dream of 7-8 years from my flooded car battery. We'll see how long my battery lasts now. Prior to buying a maintainer I was only getting 2-3 years per battery.
I did recently purchase via Amazon one of those yellow ( China name ) battery charges for my 8 volt Club Car Trojan Golf Cart batteries. I allowed my Club Car charge to get so low the factory Club Car charger would not start charging.
The best aftermarket chargers for mobility scooters and golf carts is Soneil, IMO. It's smart, 5 stages, bulk stage pulses, the works with a cherry on top. Soneil is a Canadian company which sells in Canada, USA, and possibly worldwide.
Finding a 8 volt charger was a bit of a challenge but these Amazon china charges will do 8 volts! Most of the user guide was in Chinese and broken English and not sure what the difference between smart and fast charge setting was but that $30 China Charger got my old Golf Cart batteries working again!
Hopefully that $30 Chinese charger works well for you. A Soneil would have cost more. I bought a 4A Soneil for $99. I bought a 7A for $199. PreCovid prices.
Getting 5 years with my maintainers now, multi brands, I wonder would that Battery Maintainer 1500 do much for me in the real world and get me say 6 or 7 years average? on a motorcycle / car/ truck? I think 5 years is whats expected with my heat but I'm always open for "better"...
I may buy a Battery Minder 1500 just to try it.
A
Batteryminder 1500 (1.5A) with
alligator clamps costs
$56 at Amazon (free shipping). A Batteryminder 1510 (1.5A) with alligator clamps and ring terminal connectors costs $70 (free shipping).
Batteryminder is smart with several charging stages, pulsing during float stage, temperature sensor adj voltage to be appropriate/ideal for the ambient temp, and it's water resistant. It also has several smart safety features. These are the reasons it's the best that I know of. I think NOCO is second best (that I know of).
The temp sensor feature of Batteryminder would be helpful in your hot garage. It would reduce voltage when hot, increase when cold.
Another thing that would help you is put the charger on the battery when the battery and your garage are at their coolest. For example... Don't put the charger on your motorcycle or car right after driving. i.e. - don't put on the charger when the battery is already warm or hot. Wait 2+ hours (when battery has cooled) before applying charger.
In summer, the morning is when your garage is coolest. So that's the best time to put the charger on battery (assuming the battery is also cool - not recently driven).
When you first put on a charger is when it goes into bulk charge stage and pushes the most amps and voltage into battery. That's when it puts the most heat into a battery. If battery is already warm or hot (from recently driving or from hot garage) then adding more heat to it is bad.
That's why I wait until battery and garage are cool
(morning) and then apply the charger. The bulk (initial, aggressive) charging that adds creates heat will happen when the battery is cool. So no harm. The charger will have moved from bulk to absorption to float stage long before the heat of the day warms up the garage.
The float stage generates very little or no heat, especially if it's a pulsing float. Batteryminder has pulsing float. It also has a temp sensor to adj bulk, absorption, and float voltage to be appropriate for the ambient temp (i.e. - your garage temp). However, the charger's temp sensor won't know if the battery itself is hotter than ambient temp, which is why you'd still need to let battery cool after driving before applying charger.
I think you'd get more years from better charging practices. Batteryminder would also probably help because it'd adjust the voltage of all charging stages to be as suitable as possible for your garage temp.
