WFCO WF8725PAD 8700 Series RV Battery Charger Power Center, 25 AmpExclusive to WFCO Converters, Power Centers, and MBAs feature new Patent Pending technology that will DETECT Lead Acid or Lithium Ion batteries and AUTOMATICALLY change the charging profile based on the battery. RV owners will no longer need to change out an entire converter or operate a manual switch to properly charge batteries. 8700 Series converters provide a highly reliable nominal 13. 6 volts DC with or without a battery, and no extra filtering