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VMAXTANKS LFP12300BH

The VMAXTANKS LFP12300BH is a battery pack with a nominal voltage of 12.8 Volts and a nominal capacity of 300Ah.

Last updated: 20 October 2026

Battery and charging

Battery weight
77.0 lbs (34.9 kg)

“Length 20.60" (52.3 cm) Width 9.40" (23.9 cm) Height 8.70" (22.1 cm) Weight 77.0 lbs (34.9 kg) Low Voltage Cut-Off 10.0V”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Voltage
12.8 Volts

“Chemistry Lithium (LiFePO4) Group Size 8D Nominal Voltage 12.8 Volts Capacity (20-hour rate) 300Ah Energy 3840Wh”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Battery type
Lithium (LiFePO4)

“VMAX LFP12300BH Lithium Battery Datasheet Chemistry Lithium (LiFePO4) Group Size 8D Nominal Voltage 12.8 Volts Capacity (20-hour rate) 300Ah”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Nominal capacity
300Ah

“Nominal Voltage 12.8 Volts Capacity (20-hour rate) 300Ah Energy 3840Wh Max. Continuous Discharge Amps 200A Max. 3-Second Discharge Amps 400A”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Capacity, at the 20-hour rate
300Ah

“Group Size 8D Nominal Voltage 12.8 Volts Capacity (20-hour rate) 300Ah Energy 3840Wh Max. Continuous Discharge Amps 200A”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Charging voltage
14.4 - 14.6V

“Max. 3-Second Discharge Amps 400A Charging Voltage 14.4 - 14.6V Recommended Charging Current 30 - 200A Max Charging Current 200A”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Depth of discharge it is rated at
80% DOD

“Parallel Connections 4 Max (up to 1200Ah) Cycle Life 80% DOD: ~4000 cycles @ 50A 77F Design Life ~10 Years Certifications CE Certified”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Battery care and safety

Charge cycles, as claimed
80% DOD: ~4000 cycles @ 50A 77F

“Series Connections 4 Max (up to 48V) Parallel Connections 4 Max (up to 1200Ah) Cycle Life 80% DOD: ~4000 cycles @ 50A 77F Design Life ~10 Years”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Operating temperature range
-4°F - 150°F (-20°C - 66°C)

“Charging Over-Current Protection 220A w/1-Second Delay Discharge Temp Range -4°F - 150°F (-20°C - 66°C) Charging Temp Range 32°F - 113°F (0°C - 45°C)”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Size and fit

Overall dimensions
Length 20.60" (52.3 cm) Width 9.40" (23.9 cm) Height 8.70" (22.1 cm)

“Terminals M8 Inserts Length 20.60" (52.3 cm) Width 9.40" (23.9 cm) Height 8.70" (22.1 cm) Weight 77.0 lbs (34.9 kg)”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Terminals
M8 Inserts

“Recommended Charging Current 30 - 200A Max Charging Current 200A Terminals M8 Inserts Length 20.60" (52.3 cm) Width 9.40" (23.9 cm)”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Identity

Model code
LFP12300BH

“VMAX LFP12300BH Lithium Battery Datasheet Chemistry Lithium (LiFePO4) Group Size 8D Nominal Voltage 12.8 Volts Capacity (20-hour rate) 300Ah”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Certification claims

Battery certification claim
CE Certified

“Cycle Life 80% DOD: ~4000 cycles @ 50A 77F Design Life ~10 Years Certifications CE Certified Information sourced from vmaxtanks.com June 2026”

Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

Sources

  • Archived document

    Source: gmienergy.com/content/brands/vmax/datasheets/vmax-lfp12300bh-lithium-battery-datasheet.pdf

    Retrieved October 12, 2026