01-08-2016, 06:25 PM
In a past life I used to sell these trickle chargers. The optimate is the original and the best. Once this item became popular many copies became available, most made in China and the failure rate was tremendous. The copies have probably improved over the years but the Optimate is still the one to buy. I've got the mark 1 model which must be 20 years old and it is still giving good service.
