Bighorn 5th Wheeler | 2400ah Lithium Battery | Off-Grid Power | Victron Energy June 10, 2023 fredom DIY Solar Power Systems DIY Solar Is this our BIGGEST EVER mobile power system installation??? Ben explains what went into the GIGANTIC off-grid power system in the Longhorn 5th Wheeler… Including a purpose built 2400ah (12v equiv.) Lithium Power Bank! Credit Solar N Sat Please support our Sponsors here :