Andonso wrote:
The battery that was previously low on electrolyte was low again so I removed it and now have only two RV batteries temporarily connected to an Xantrex 10 amp charger which brought the two RV batteries back up to ~12 volts.
SoundGuy wrote:
Elsewhere you said - "The battery loosing electrolytes is dated 01/06 while the other two 01/07"
... so along with the fact you weren't able to restore these batteries to any more than ~ 12 volts that would indicate these 10+ yr old batteries are pooched, regardless of whether your PD converter works properly or not.
Andonso wrote:
No not necessarily RV Batteries can sometimes last more than 10 years. I've seen some last up to around 15.
I haven't really well maintained the three RV batteries purchased new over 10 years ago.
Didn't regularly check the electrolyte levels, voltage and specific gravity.
currently the two RV batteries are reading 13.40 volts while connected to an Xantrex 10 amp truecharge charger that currently trickle charging at 1 amp or less.
To obtain a true voltage measurement one needs to remove the charger and allow the battery or batteries to sit for a while.
One really should take regular voltage measurements, check electrolyte levels, specific gravity with a hydrometer.
All of which I didn't do I just installed the RV batteries and perhaps checked the electrolyte levels two or three time a year.
You're preaching to the choir that disagrees with you - 10 yrs out of
any deep cycle battery most would consider good service and yours are proof of that, which is surprising considering that you admittedly haven't properly cared for them. :R
