I currently have a Talentcell 120A1 12v/15A Lifepo battery. I thought about buying another one and putting them in parallel. If I do, will they recharge normally on a charger or should they be charged individually? The reason for putting them in parallel is to increase the time I have while portable. I am running an FT-891. I could always buy a Bioeeno at 20 amps but I figured since I already have one of these, buying a second one would be cheaper.