I have 3 of the Valence xp batteries and I am going to install them in parallel in my RV. I understand from reading the forum that you want to connect lithium batteries together when they are at the same voltage. What voltage should I be looking for? Do they need to be at the max or just at the same? I ask because I have a 10amp bench charger and it would take forever to get to 13.8 on all 3. I have had one on the charger for a whole day and its only at 13.6. Thanks
