$50 = Free Delivery! No Code Needed
Quite possibly the most well made battery on the market, the eFlex 5.4 kWh lithium battery from Fortress Power comes with built-in wifi for remote monitoring and troubleshooting to compliment its 10 year warranty with the safe and premium prismatic Lithium-Iron-Phosphate cells. It's expandable from 5.4 kWh to 81 kWh for whatever your application needs making this one of the most popular units in the Fortress line-up.
The aluminum cabinet that houses the high quality battery cells is IP 65 waterproof which will prevent salt water corrosion.
High ound trip efficiency & >99% mixed with 6000+ lifecycles means that this is one of the best bangs for your buck when it comes to a lithium deep cycle battery.
High Durability and long-lasting: 10 Year Warranty with the safe and premium prismatic Lithium-Iron-Phosphate cells
Versatile Applications: Expandable from 5.4 kWh to 81 kWh for residential, commercial, railway, military and telecommunications applications
Lowest Cost Per Cycle: High energy throughout with exceptional life span (6000+ cycles) and hight round-trip efficiency (>99%)
Monitor from Anywhere: The battery has a built-in data storage Wi-Fi for remote monitoring and troubleshooting ability
Waterproof and saltwater resistant: The sleek-looking aluminum cabinet has IP65 waterproof rating to prevent salt-water corrosion
The eFlex5.4 is compatible with most inverters on the market today, but customers have found the best pairing with the units below:
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- Schneider Conext
Fortress Lithium Iron Phosphate batteries are designed to work with most 48VDC inverter and chargers available on the market. Below is a list of compatible inverters and chargers.
- 8 KW & 12 KW Inverters
- Conext XW MPPT charge controller; Conext XW+/XW pro series
- Skybox, FLEX max charge controller (48V), FLEXpower series (48V); Radian series (48V); FXR(A) and FXR (E) series (48V); GVFX and GVFX series (48V);
- MS 4448PAE; MS 4048-20B
- SUNNY ISLAND 4548-US/6048-US; SUNNY ISLAND 3.0M/4.4M/6.0H/8.0H
- Phoenix VE.Direct Inverter; MultiPlus and Quatro Inverter/Charger; Skylla-TG Charger; General; Color Control or Venus GX
- TriStar MPPT 600V; TriStar MPPT; Tristar PWM
- Solar Classic 150, 200 & 250; Solar Classic 150, 200 & 250-SL
For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
