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- Regular price
- $1,770.00
✅ Order by 12:00 PM EST and processing starts the same day (ships within 1–2 business days). Free, insured US shipping — delivery in 4–7 business days. Oversized items ship via LTL freight and we coordinate delivery with you by phone.
🏔️ OffGrid Horizon is family-owned & off-grid obsessed. Read our story →
Shipping: how fast & how it works
Shipping: how fast & how it works
Free standard shipping on every US order — no shipping charges at checkout, no hidden fees, and every shipment is insured against loss or damage.
- Processing: 1–2 business days. Order before 12:00 PM EST and processing begins the same day.
- Delivery: 4–7 business days via USPS, UPS or FedEx. Tracking is emailed the moment your order ships.
- Large items (solar kits, batteries, shelters): delivered by LTL freight carriers such as FedEx Freight, Old Dominion or XPO. The carrier calls ahead to schedule a delivery window — please inspect the pallet and note any damage on the delivery receipt before signing, and we’ll take care of the rest.
Questions about delivery to your location? Call (302) 496-3554 (Mon–Fri, 9am–4pm EST) — we’re happy to check before you order.
What is your Return Policy?
What is your Return Policy?
At OffGrid Horizon, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:
1. Return Window
You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.
2. Who Pays for Return Shipping?
- If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost — and you’ll receive a full 100% refund or replacement, including any original shipping costs.
- If you’re returning an item because you changed your mind, you’ll be responsible for return shipping, and a 25% restocking fee applies.
3. Damaged or Defective Items
Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement.
4. Changed Your Mind?
If you no longer want the item, you can return it within 30 days — as long as it’s unused, unopened, in its original packaging, and in resellable condition.
5. Refund Processing
Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.
How to start a return: email sales@offgridhorizon.com or call (302) 496-3554 (Mon–Fri, 9am–4pm EST) with your order number — we’ll send return instructions and your RMA right away.
Product Description
Freight and handling are included in the listed price — no additional shipping charges are added at checkout (contiguous US).
BigBattery and EG4 orders of $5,000 or more qualify for $250 off, applied automatically at checkout. No discount code required.
The APEX 10K is a higher-output all-in-one off-grid inverter for 48 V battery systems. With 10,000 W of continuous split-phase 120/240 V output plus an integrated MPPT solar charge controller and battery charger, it can carry larger off-grid homes and workshops that need to start and run heavier loads.
- 10,000 W continuous output, split-phase 120/240 V
- Integrated MPPT solar charge controller
- Designed for 48 V LiFePO4 battery banks, including BigBattery NEXUS and ETHOS systems
- Wall-mounted, all-in-one installation
SKU: INV035