Pytes Battery Bracket Kit, BK1 Series, For Use With Pytes E-BOX-48100R and E-BOX TE+ Batteries, Supports Configurations Up to 6 Stacked Batteries per Column, Steel Construction, Provides Sturdy Organized Installation Without Full Enclosure Cabinet, Ideal for Larger Residential or Small Commercial Deployments. BK1 bracket system offers an economical alternative to full cabinets for 3-6 battery stacks.