Volthium 25.6-200-W-CLOSS


  • Zero maintenance required!
  • Built-in Soft-Start feature.
  • Stack up to 16 units in parallel.
  • Compatible with standard charge controllers.
  • No memory effect, can be left at any State-Of-Charge.
  • Capable of 100% repeated discharges without damage.
  • Very low self-discharge, maintaining charge for up to 1 year.
  • Integrated VE.Can for direct connection to Victron GX equipment.
  • 24 Volt, 200 Amp-hour @ 20-hour discharge rate (5.12 kWh of stored energy).
  • Active cell management via included battery management system (BMS).
  • Long lifespan, true deep-cycle: 2500 cycles at 100% DOD, 4250 cycles at 80% DOD.
  • Comes with a 4-year full warranty, plus 6 years pro-rated, for a total of 10 years.

Volthium: Advancing Lithium-Ion Battery Technology

Volthium, headquartered in Quebec, pioneers lithium-ion battery innovation for diverse applications, including large-scale off-grid systems. Their range of battery group sizes caters to various needs, offering both drop-in replacements for lead-acid batteries and modular rackmount systems, ensuring versatility for any project.

The Volthium 25.6-200-W-CLOSS: Wall Mount Series

Part of the Wall Mount series, the Volthium 25.6-200-W-CLOSS delivers 24 Volts and 200 Amp-hours (5.12 kWh of stored energy). With flexible installation options, these batteries can be stacked or wall-mounted using an anchoring system, compatible with all market inverters.

Parallel Stacking for Enhanced Capacity

Up to 16 units can be stacked in parallel, resulting in a total capacity of 24 Volts at 3200 Amp-hours, providing nearly 82 kWh of fully usable energy.

Advanced Integration and Monitoring

Featuring VE.Can bus integration, Volthium batteries communicate directly with Victron GX equipment, eliminating the need for an additional battery monitor. RS-485 connection to a PC is also available, with an LCD display for real-time battery status monitoring.

Deep-Cycle Performance and Safety Assurance

Volthium lithium-ion batteries are genuine deep-cycle batteries, capable of repeated 100% discharges without damage, thanks to the built-in battery management system (BMS). Certified to UL1642 standards, they ensure safety and reliability in operation.

Optimized Charge Settings

Bulk/absorb settings range from 28.0 to 29.0 Volts, with an ideal setting of 28.0 Volts. Absorb time is approximately two hours, with no critical requirement. Float is not necessary, set to 27.2 Volts or lower. No equalize function is required, or set to 28.0 Volts if not disable-able. Temperature compensation is set to 0. It is preferable to charge at a rate of 100 Amps or less for longevity, although up to 150 Amps is feasible.

Wide Operating Range and Enhanced Safety Features

Charging operates from 0°C for unheated batteries or -30°C for heated batteries, with discharge functioning adequately down to -20°C. Volthium batteries utilize LiFePO4 chemistry, ensuring stability and safety with built-in protection against over-pressure, over-temperature, and containing a fire-retardant in the electrolyte and casing.

Versatile Applications with Minimal Footprint

Their ability to discharge to 100% DOD allows for smaller battery banks compared to lead-acid, while their lack of off-gassing enables indoor mounting in any orientation, maximizing space efficiency and safety.




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