SE-F12 Max

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Deye SE-F12 Max – outdoor IP65 LiFePO4 energy storage with 11.8 kWh total usable energy

The Deye SE-F12 Max is an 11.8 kWh capacity, low-voltage (51.2 V) LiFePO4 energy storage battery designed for both indoor and outdoor installation. The key distinguishing feature of the “Max” variant is IP65 / NEMA 3R protection, which enables outdoor mounting, as well as the full 11.8 kWh usable energy and 11.8 kW output power. Thanks to its integrated PACK design, advanced BMS, and built-in LCD display, the SE-F12 Max is a high-performance, future-proof solution for demanding residential and small commercial systems.

Why choose the Deye SE-F12 Max energy storage?

The Deye SE-F12 Max battery is based on proven, safe LiFePO4 (lithium iron phosphate) cell chemistry, which offers high thermal stability, user safety, and long service life. The advanced BMS with active fuse continuously monitors and balances cell voltage, current, and temperature, and provides comprehensive protection against overvoltage, deep discharge, overload, and short circuit. Thanks to IP65 / NEMA 3R protection, the module can be mounted directly outdoors, and with an optional heating film, it can be charged even in environments down to −20 °C.

Key advantages of the Deye SE-F12 Max

• Outdoor IP65 / NEMA 3R protection – dust- and waterproof, can be installed directly outdoors
• Full usable energy – 11.8 kWh nominal and 11.8 kWh usable energy
• High power – 11.8 kW output power, 230 A continuous and 280 A peak current (10 s)
• Built-in LCD display – state of charge (SOC) and alarms instantly, without external device
• Low-temperature operation – with optional heating film for charging down to −20 °C
• Advanced BMS with active fuse – comprehensive protection and active cell balancing
• Flexible expandability – up to 32 modules in parallel, up to 64 with CAN bridge
• Long service life and reliable support – >6000 cycles and 10-year warranty

Applications

The Deye SE-F12 Max energy storage is ideal for residential and small commercial solar systems where there is insufficient indoor space for the battery, or outdoor installation is more practical. Thanks to IP65 protection, it can be mounted on an outdoor wall or rack, providing a flexible solution for hybrid, off-grid, and backup power systems. It helps store solar energy generated during the day for use in the evening or during peak hours – increasing self-consumption ratio, and thanks to its high power, reliably supplying larger loads.

Deye SE-F12 Max technical specifications

Current depends on temperature and state of charge (SOC). Cycle life, warranty, and certifications may vary by region/version; please verify final values with the current Deye datasheet in your possession.

Frequently asked questions about the Deye SE-F12 Max energy storage

What is the difference between the Deye SE-F12 Max and the SE-F12-C?
The key advantage of the “Max” variant is IP65 / NEMA 3R protection, which enables outdoor installation, as well as the full 11.8 kWh usable energy and 11.8 kW output power. The SE-F12-C is an indoor (IP21) version.

Can the Deye SE-F12 Max be installed outdoors?
Yes. Thanks to IP65 / NEMA 3R protection, it is dust- and waterproof, so it can be mounted on an outdoor wall or rack – naturally, it must be protected from direct continuous water immersion.

What is the capacity and expandability of the Deye SE-F12 Max?
One module has 11.8 kWh energy capacity and 230 Ah capacity at 51.2 V nominal voltage. Up to 32 modules can be paralleled, and up to 64 with a CAN bridge.

Can the Deye SE-F12 Max be used in cold environments?
Discharge is possible down to −20 °C, and for charging, an optional heating film can be ordered that ensures safe charging down to −20 °C – making it suitable for unheated outdoor environments.