I'm looking at getting a battery maintainer for the GT3. I'm looking at the Deltran Battery Tender Plus or the Ctek 3300. The price is pretty much the same, half of the Porsche branded ones, but I noted a difference that the Deltran uses a float charge to maintain the battery while the Ctek uses a pulse charge. For our batteries, is there a charge that is recommended (pulse or float)?

Thanks!