Hi All, I put a X2 Power 31 series (AGM) in my boat after about 6 months (early 2017) (2017 Triton received August 2016). At the time it came with a 5 year (now 4 I think) warranty. Early on when I put it in, the boat would buzz when starting indicating "low voltage", but after the first time starting, it would start great (foreshadowing my problem question). So, last time out, it died at the end of the day (yup, cranking up to go to weigh in), but it did jump start. I took it out, and back to the Battery Plus store near my house where I bought it and it showed 13volts and the kid was like its fine. I asked them to do a discharge test and the owner who was out to lunch, got it and did just that and it showed that it discharged quickly and was bad. The owner said they almost never get X2's back that are dead and asked alot of questions about where and how I charge. They replaced the battery under the warranty and were very nice about it.
1) I charge from a cord the Marina gives me. He asked that I check to make sure there are at least 6amps from the cord. This I will do with a new tester I bought.
2) He asked about the charger and here is my question. I have the Triton installed Delta Volt (that seems to be key) Pro Series charger that uses one charge cycle that is good for both AGM and Lead Acid (so it claims). I have lead acid TM batteries that have done very well with this charger. Note: I leave it plugged in all the time as it claims to be a 3 stage charger and goes into maintenance mode as it detects a full charge.
My question is this after reading about the two battery types and their charging needs. Can one charging algorithm really work for 27 series lead acid and 31 series AGM? I suspect something here that may mean the AGM's life expectancy is shortened. I am reading alot about the Minnkota chargers where you manually set the battery type and thus no compromise in charging styles/rates necessary. I'd rather spend the bucks NOW on a new charger and save myself the pain of replacing batteries more often (and the worry of premature failure).
Would appreciate any experiences or first hand knowledge.