• Zero maintenance required
  • Integrated 125A breaker
  • Soft-Start built into the battery
  • Standard 19″ rackmount with 4U height
  • Up to 16 units can be stacked in parallel
  • Compatible with standard charge controllers
  • No memory effect, can be left at any State-Of-Charge
  • Can be discharged 100% repeatedly without damage
  • Very low self-discharge, holds charge for up to 1 year
  • Built-in automatic heater version available, allowing charging from -30°C (-22°F)
  • VE.Can & RS-485 built-in, connects directly to Victron GX equipment
  • 24 Volt, 200 Amp-hour @ 20-hour discharge rate (5.12 kWh of stored energy)
  • Active cell management through included battery management system (BMS)
  • Long lifespan, true deep-cycle: 2500 cycles at 100% DOD, 4250 cycles at 80% DOD
  • 1-year full warranty, plus 9 years pro-rated, for a total of 10 years.

Volthium, based in Quebec, is dedicated to making lithium-ion batteries mainstream for various applications, including larger off-grid systems. They offer a range of battery group sizes compatible with lead-acid replacements and modular rackmount systems customizable for any project. Part of their Rack Mount series, the Volthium 25.6-200-R and 25.6-200-R-H feature 24 Volt 200 Ah (5.12 kWh of stored energy) and can be mounted in a standard 19″ rack, available with or without a built-in heater. These batteries allow for safe use and charging down to -30C (-22F) and can be stacked in parallel for increased capacity. With integrated VE.Can bus and RS-485 connectivity, they seamlessly communicate with Victron GX equipment. Volthium lithium-ion batteries are true deep-cycle batteries with a built-in battery management system for optimal performance and safety. They use LiFePO4 chemistry, ensuring stability and safety without off-gassing, making them suitable for indoor mounting in any orientation.

Here are the recommended charge settings for Volthium batteries:

  • Bulk/absorb: 28.0 – 29.0 Volt, with 28.0 Volt being ideal
  • Absorb time: Approximately two hours, but not critical
  • Float: Not required, set to 27.2 Volt or lower
  • No equalize, or set to 28.0 Volt if it cannot be disabled
  • No temperature compensation, set to 0
  • Preferably charge at a rate of 100 Amp or less for longevity, but up to 150 Amp is possible
  • Charging operates from 0°C (for unheated batteries) or -30°C (-22°F for heated batteries), while discharge functions effectively up to -20°C (-4°F).



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