BigBattery

Special Offers

BigBattery ETHOS and NEXUS LiFePO4 energy storage — stackable home ESS and high-capacity off-grid kits paired with EG4 and APEX inverters.

FREE US SHIPPING
Free shipping on every USA order — no shipping charges at checkout.
SATISFACTION GUARANTEED
Damaged, defective or incorrect items are refunded or replaced in full. See our Return and Refund Policy.
REAL CUSTOMER SUPPORT
Call (302) 496-3554 or email sales@offgridhorizon.com, Mon–Fri 9 AM–4 PM ET.
SECURE ENCRYPTED CHECKOUT
Payments are processed by Shopify Payments, PayPal and Amazon Pay — we never see or store your card number.