Inverters Sale

Solar Inverter Sale: Discounted 12V, 24V and 48V Units Worth Buying Now

This is the page for a solar inverter at a reduced price, covering everything from a 12V RV inverter charger to whole-home 48V hybrids and one three-phase commercial unit. Buying an inverter on sale makes sense only if it matches your battery voltage, your loads and your grid situation, so this guide is organized around those three checks rather than around the discount itself.

There are 18 inverters here from Sol-Ark, EG4, Rich Solar, APEX and Sungold Power. The cheapest is the 3,000W Rich Solar NOVA MAX 3K at from $799; the largest is the 60kW Sol-Ark 60K at $14,455. Most of the collection sits between $1,500 and $6,500, where the 6,500W to 18kW home hybrids live.

How to choose an inverter from the sale

• Battery voltage decides the shortlist. The Rich Solar NOVA SUPERCHARGER 3K is the 12V pick for RVs and boats, with a 150A charger and automatic transfer. The NOVA MAX 3K is the 24V hybrid with 80A MPPT built in. Everything else is 48V.
• Continuous watts against your loads. Cabins and critical-loads panels fit the APEX-6.5K at 6,500W. Homes with 240V appliances want 8,000 to 13,000W: the EG4 12kPV, the 10,000W APEX-10K, the 11.4kW Sungold SGN-11K15PRO or the 13,000W FlexBOSS18.
• Grid-tied or off-grid. The Sol-Ark 15K and 18K, the EG4 12kPV and both FlexBOSS models run tied to the utility or fully off-grid. The APEX units are off-grid inverters with separate grid and generator inputs for charging.
• Solar input headroom. The EG4 FlexBOSS21 accepts 21,000W of PV over three trackers and five strings, and delivers 12,000W continuous or 16,000W with solar assisting. If your roof is large, that headroom is worth more than a lower price on a smaller unit.
• Surge for motors. The Sol-Ark 18K lists 36kW of surge for 10 seconds, which is what starts a central AC compressor or a deep well pump in an outage.

Popular picks in this collection

Sizing tips

• Before you buy on price, run the Solar Kit Calculator. It estimates inverter, battery and panel size from your appliance list and ZIP code, so you know whether the discounted unit is the right size at all.
• A sale inverter that is too small costs more in the end. If you are between two sizes, take the larger one; the difference in idle draw is minor compared with tripping on a compressor start.
• Check the battery's discharge rating. A 10kW inverter needs a bank that can deliver over 200A at 48V continuously.
• Confirm mounting location. The 12kPV and FlexBOSS models carry NEMA 4X enclosures for outdoor walls; the APEX, Sungold and NOVA units belong indoors.
• For a permitted inverter solar system with grid interaction, look for the UL listings on the product page (UL 9540 on the FlexBOSS18 and FlexBOSS21) and confirm with your utility.
• Sale stock changes. If the unit you need is listed, order it; the next batch may not carry the same price.

Frequently asked questions

Which EG4 inverter is the best deal here? For a first home system, the 12kPV at $2,999 gives 8,000W, outdoor rating and a 10-year manufacturer's warranty. For a larger roof, the FlexBOSS18 adds built-in 4G and 18,000W of PV input for about $200 more.

Are sale inverters new and covered by warranty? Yes. They ship new from the brand partner warehouse with the manufacturer's warranty listed on each product page, and our 30-day return policy applies.

Can I mix EG4 inverters with another brand's battery? Any 48V lithium bank will power them. Closed-loop communication depends on the pairing, so ask us before ordering if you want the battery to report its state of charge to the inverter.

Every unit ships free to the mainland US from our brand partner warehouses, usually within a few business days. If you are unsure which of these fits your battery and loads, call and we will check before you commit.