Battery problems easily found

A couple of months ago I was having battery problems like many people have. My truck battery would lose it's charge over night, and the battery was an almost new GMT battery for which I paid over $200 dollars for.

I decided I had it with meters and driving to the auto store for advice that was usually wrong, so I went on a search for a do all charger. There are a number of really good chargers available, and you'll pay good money for them all. My search brought me to SCHUMACHER, a brand I am very familiar with known for quality and capability. The model I bought was the 1352, and I was able to find my problem in less than 5 minutes. The problem?? The fairly new battery was junk, even though the parts house said it was good. However, my charger diagnostics told me the battery was failed and armed with that information I was able to obtain a no cost battery. I've used the charger on other batteries and have even been able to revive batteries long thought to be junk. This charger also has specific modes for battery type including GMT.

See the link below.
Schumacher Wheeled Battery Charger/Trickle Charger/Desulfator/Engine Starter — 12/24 Volt, 6-2/40/250 Amp, Model# SC1352 | Northern Tool

SC1352 6/2/40/20/250/125A 12/24V Automatic Battery Charger/Engine Starter | Schumacher Electric (batterychargers.com)

Amazon.com: Schumacher Battery Charger with Engine Starter, Boost, and Maintainer - 250 Amp/40 Amp, 12V/24V - for Cars, Trucks, SUVs, Marine Vehicles, RVs: Automotive



And the charger below may be the same charger.

DieHard 71345 Platinum Smart Wheel Battery Charger Maintainer 6 12 Volt 2 6A Charge 60A Boost 125 275A Jump - Walmart.com - Walmart.com