Can you jump start it and drive it around to charge from the alternator? If you just pull the battery and take it in, the shop will probably want to put it on their charger and then load test it.All I have is a Battery Tender Plus. If that is not sufficient I'll just replace it under warranty.
How were you thinking about charging it?Assuming I can recharge it back up to normal...
Is there a way with a dual battery setup to 'trick" the dead battery so I can charge it? The Yellow Top is at 5.5V.
Correct.Connect it parallel to a good battery using a set of jumper cables, then connect a charger (something much bigger than a Battery Tender) to it.
I just got one of the new Odyssey chargers that I'm going to try on my 2150. The instructions say that it will charge and condition AGM batteries that are as low as 2.5V. Optima also has a relatively new line of chargers, so you might look into an Odyssey or Optima charger to solve your problems. Sounds like you need a charger and and a conditioner and a new battery tender. These will do all of those things. My old Odyssey Ultimizer is 40amps and Optima told me to never use that charger on one of their batteries because the high amp/high voltage charge could damage their battery. My new Odyssey charger is only 20amp (the biggest Odyssey offers right now), but they have a couple of smaller ones available that might be suitable if the 20amp is too much. My experience with calls to tech support at both companies is that they are pretty open with info and assistance. Odyssey's tech support and customer service is great.Is there a way with a dual battery setup to 'trick" the dead battery so I can charge it? The Yellow Top is at 5.5V.
Just as smart; just has 1/3 the amperage so it takes a bit longer with a deeply discharged battery.How about the smaller Optima charger?