You know I had that particular brand name and I honestly don't know what happened to it but that really did work well and then after that broke like say 10 years ago I bought this $20 battery charger it's a very small unit it's probably cheaply made but it actually worksI have an older Schumacher 10 amp/2 amp charger. It's fairly large. It does a great job and has an automatic shut off. However, I felt that a Battery Tender Jr. would be a better unit for maintaining my mower battery. The OEM battery for my Gravely is 5 years old and it fires the mower every time.