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Volthium SC24200WM

$3,599.98

Volthium SC24200WM, lithium-ion 24V deep-cycle, 200Ah, wall mountable, 5000+ cycles, 4+6 years warranty

SKU: VLT-188-108 Categories: , Tags: ,

Also see our Finding Happiness with Lithium-Ion article, explaining the care and feeding of these batteries.

Quebec-based Volthium is working hard to bring lithium-ion batteries to the mainstream for battery banks. Not just for RVs and boats, but for for larger off-grid systems as well. They make various popular battery group sizes as a drop-in for lead-acid, and batteries for 19″ rackmount in a modular system that can be sized to fit any need. There is a Volthium battery for all your needs!

The Volthium SC24200WM is part of their Wall Mount series of batteries, with 24 Volt 200 Ah (5.12 kWh of stored energy). These batteries can be stacked on top of each other, or fixed to the wall thanks to its anchoring system. They are compatible with all inverters on the market.

Up to 16 units can be stacked in parallel, for a total of 24 Volt @ 3200 Ah, storing nearly 82 kWh in energy (with 100% of it usable)!

The batteries have VE.Can bus integrated into them, and can communicate directly with Victron GX equipment, such as their Cerbo, Color Control GX, or GX Touch. No additional battery monitor needed. RS-485 for connection to a PC is available as well. An LCD display shows current battery status.

Volthium lithium-ion batteries are true deep-cycle batteries, they can repeatedly be discharged a full 100% without damage. The battery has a build-in battery management system (BMS). The BMS allows them to be charged with regular solar PV charge controllers, with the same settings as for any other sealed battery (such as AGM batteries). The BMS also takes care of protecting the batteries from over- and under-charge, low Voltage disconnect, over-current, and automatic balancing of the cells.

This battery is certified to UL1642.

Charge settings for Volthium batteries:

  • Bulk/absorb = 28.0 – 29.0 Volt, with 28.0 Volt ideal
  • Absorb time = about two hours, not critical
  • Float = not needed, set to 27.2 Volt or less
  • No equalize, or set to 28.0 Volt if it can’t be disabled
  • No temperature compensation, set to 0
  • Charge rate of 100 Amp or less is preferred for longevity, though up to 150 Amp is possible
  • Charging works from 0C (unheated battery) or -30C (-22F, for heated battery), discharge works fine up to -20C (-4F)

The maximum discharge rate is 150 Amp continuous, 200 Amp for 30 seconds, and 300 Amp for 3 seconds.

Volthium batteries use LiFePO4 chemistry (Lithium-Iron-Phosphate) in prismatic cells. This is very stable and is not sensitive to spontaneous combustion, in comparison to laptop and cell-phone lithium-ion batteries (which use Lithium-Cobalt-Phosphate chemistry). The cells have build-in protection for over-pressure, over-temperature, and contain a fire-retardant in the electrolyte and casing. These are very safe batteries!

Because lithium-ion batteries can be discharged to 100% DOD, and this can be done for more cycles, a smaller battery bank can suffice vs. lead-acid. Since there is no off-gassing these batteries can be mounted indoors, in any orientation.

Features

  • Zero maintenance!
  • 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, can hold charge for up to 1 year
  • VE.Can build-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
  • 4 years full warranty, plus 6 years pro-rated, for 10 years total

Specifications

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