This article is very old. at least 10+ yrs. The shumacher w/ the diehard label has been out at least 10 yrs.
My Deltrans sees 14,6 volts every time its reconnected.
I did have a shumacher fail, just quit charging.
I have 2 shumachers, one w/ the diehard label.
I have 1 Batt Tender plus.
And I have 2 of the slow charging $6 HF maintainers. They all work good for me, w/ Deltrans being my favorite.
tplife wrote:
There are better units for less money. We've been using several of the Schumacher units from WalMart. They are rated here as performing better than the Battery Tender product:
5 Battery Mainteners tested