Giantz 135Ah Deep Cycle Battery & Battery Box 12V AGM Marine Sealed Power Solar Caravan 4WD CampingFrom a powerful battery to a formidable power station. That is what our GIANTZ Deep Cycle Battery and Battery Box combo can do. On its own, the 135Ah 12V battery features an incredible cycle life of up to 1400 cycles. What you get is a longer, consistent and more drawn out charge all the time. And with its advanced AGM technology, the battery enables better electrolyte absorption, cyclic stability and frequent charging without affecting performance.