Volthium 48V 100Ah 3U Rackmount Battery

Volthium 51.2-100-RX-3U-C – Self Heating Rackmount Lithium Battery

The New Volthium 51.2-100-RX-3U-C is a self-heating battery for 19” rackmount in 3U height, made by Quebec-based Volthium. These batteries are designed for modular systems that can be scaled as needed. They are fully UL9540 listed for use with popular inverters including Sol-Ark, Lux Power, and Conext/Schneider.

Battery Models & Specifications

Volthium 51.2-100-R-3U-C (unheated) and 51.2-100-RH-3U-C (heated) are 48 Volt 100 Ah (5.12 kWh) batteries, meant for standard 19” rack mounting. The heated version supports safe discharge to -20°C and charging down to -25°C (-13°F). The heater activates automatically via the BMS when charging in freezing temperatures.

Scalable & Modular Design

Up to 32 units can be stacked in parallel, creating a 48 Volt @ 3200 Ah system, storing nearly 164 kWh of energy (fully usable). Each unit's BMS communicates with others, forming one integrated, auto-balancing battery bank.

Easy Installation & Connectivity

• M10 studs for easy connection using standard interconnects with lugs
• Batteries can be connected in parallel with properly sized interconnects
• Stacking kits available for combining up to 4 batteries
• VE.Can bus integrated for direct communication with Victron GX equipment (Cerbo, Color Control GX, GX Touch)
• RS-485 available for PC connection

Performance & Battery Management

Volthium lithium-ion batteries are true deep-cycle, supporting repeated 100% discharge without damage. Built-in BMS allows charging via solar chargers or inverters with standard settings. The BMS also protects against over- and under-voltage, low temperature, overcurrent, and automatically balances cells.

Certifications & Compliance

• Fully UL9540 listed with Sol-Ark 5K, 8K, 12K, 15K inverters, and Lux Power 12K inverters
• Cells certified to UL9540A
• Entire unit CSA-listed to UL1973 and CSA standards
• UL9540 mark for 48V residential and commercial systems
• ESA listed with Ontario’s ESA Bulletin 64-08-1 for residential battery-based ESS

Contact Information

Please call Jacob Collier at 647-914-9699.