Marxon LR51.2-100 5.12kWh 51.2V 100Ah LiFePO4 Rack Battery

The Marxon LR51.2-100 AMP is a 5.12kWh rack-mounted LiFePO4 battery built for 48V solar storage. Rated at 51.2V nominal with a 100Ah capacity, it carries a built-in BMS, a front LCD display and RS485, RS232 and CAN communication interfaces, and up to 15 units can be linked in parallel for larger banks.

Key features of this marxon battery lithium storage unit

• Capacity, 5.12kWh rated energy, 51.2V nominal, 100Ah rated
• Current, 100A maximum charge and discharge current
• Cycle life, more than 6000 cycles at 80% depth of discharge
• Design life, more than 15 years
• Case, compact rack-mounted SPCC steel case, 442 x 431 x 177mm
• Protection, built-in BMS with charge, discharge, overcurrent and temperature protection
• Communication, RS485, RS232 and CAN interfaces, supports up to 15 batteries in parallel

Applications

Suited to residential solar storage, hybrid inverter systems, off-grid PV installations and backup power setups. The rack format keeps multi-battery installations tidy in a battery cabinet or rack, and the front LCD gives a quick read of voltage, current, temperature and cell voltages without opening an app. The front panel also carries the DC breaker, two positive and two negative terminals, the communication ports, dry contacts and the address switch for parallel systems.

Inverter compatibility

Marxon lists compatibility with several inverter brands including PYLON, Sacolar, Growatt, Sofar, Voltronic, LUX, Schneider, Afore, Sinexcel, Sorotec, GoodWe, KSTAR, Srne, Must, Megarevo, Sol-Ark, INVT, Aiswei, TBB, SAKO, Solis, Victron, SMK and BlueSun. This is guidance rather than official approval, so firmware version and BMS protocol should be confirmed before installation.

What's in the box

• 1 x Marxon LR51.2-100 AMP 5.12kWh rack-mounted LiFePO4 battery

Installation notes

Rated IP31, this battery must be fitted indoors in a suitable rack, cabinet or protected technical space, not outdoors or in unprotected areas. Charging is permitted from 0°C to +45°C and discharging from -10°C to +55°C. Follow the Marxon user manual, use correct DC fusing and cable sizing, and confirm the inverter communication protocol before commissioning. Fitting should be carried out by a qualified installer.